langflow.__main__ module",id:"no-langflow__main__-module",level:3},{value:"Langflow runTraceback",id:"langflow-runtraceback",level:3},{value:"Something went wrong running migrations",id:"something-went-wrong-running-migrations",level:3},{value:"Langflow installation freezes at pip dependency resolution",id:"langflow-installation-freezes-at-pip-dependency-resolution",level:3}];function g(n){const e={a:"a",code:"code",h2:"h2",h3:"h3",li:"li",ol:"ol",p:"p",strong:"strong",ul:"ul",...(0,l.R)(),...n.components};return d||u("CH",!1),d.Code||u("CH.Code",!0),(0,t.jsxs)(t.Fragment,{children:[(0,t.jsx)("style",{dangerouslySetInnerHTML:{__html:'[data-ch-theme="github-dark"] { --ch-t-colorScheme: dark;--ch-t-foreground: #c9d1d9;--ch-t-background: #0d1117;--ch-t-lighter-inlineBackground: #0d1117e6;--ch-t-editor-background: #0d1117;--ch-t-editor-foreground: #c9d1d9;--ch-t-editor-lineHighlightBackground: #6e76811a;--ch-t-editor-rangeHighlightBackground: #ffffff0b;--ch-t-editor-infoForeground: #3794FF;--ch-t-editor-selectionBackground: #264F78;--ch-t-focusBorder: #1f6feb;--ch-t-tab-activeBackground: #0d1117;--ch-t-tab-activeForeground: #c9d1d9;--ch-t-tab-inactiveBackground: #010409;--ch-t-tab-inactiveForeground: #8b949e;--ch-t-tab-border: #30363d;--ch-t-tab-activeBorder: #0d1117;--ch-t-editorGroup-border: #30363d;--ch-t-editorGroupHeader-tabsBackground: #010409;--ch-t-editorLineNumber-foreground: #6e7681;--ch-t-input-background: #0d1117;--ch-t-input-foreground: #c9d1d9;--ch-t-input-border: #30363d;--ch-t-icon-foreground: #8b949e;--ch-t-sideBar-background: #010409;--ch-t-sideBar-foreground: #c9d1d9;--ch-t-sideBar-border: #30363d;--ch-t-list-activeSelectionBackground: #6e768166;--ch-t-list-activeSelectionForeground: #c9d1d9;--ch-t-list-hoverBackground: #6e76811a;--ch-t-list-hoverForeground: #c9d1d9; }'}}),"\n",(0,t.jsxs)(e.p,{children:["You can deploy Langflow either locally or as a hosted service with ",(0,t.jsx)(e.a,{href:"#datastax-langflow",children:(0,t.jsx)(e.strong,{children:"Datastax Langflow"})}),"."]}),"\n",(0,t.jsx)(e.h2,{id:"install-langflow-locally",children:"Install Langflow locally"}),"\n",(0,t.jsxs)(e.p,{children:["Install Langflow locally with ",(0,t.jsx)(e.a,{href:"https://docs.astral.sh/uv/getting-started/installation/",children:"uv (recommended)"}),", ",(0,t.jsx)(e.a,{href:"https://pypi.org/project/pip/",children:"pip"}),",\xa0or ",(0,t.jsx)(e.a,{href:"https://pipx.pypa.io/stable/installation/",children:"pipx"}),"."]}),"\n",(0,t.jsx)(e.h3,{id:"prerequisites",children:"Prerequisites"}),"\n",(0,t.jsxs)(e.ul,{children:["\n",(0,t.jsxs)(e.li,{children:[(0,t.jsx)(e.a,{href:"https://www.python.org/downloads/release/python-3100/",children:"Python 3.10 to 3.12"})," installed"]}),"\n",(0,t.jsxs)(e.li,{children:[(0,t.jsx)(e.a,{href:"https://docs.astral.sh/uv/getting-started/installation/",children:"uv"}),", ",(0,t.jsx)(e.a,{href:"https://pypi.org/project/pip/",children:"pip"}),", or ",(0,t.jsx)(e.a,{href:"https://pipx.pypa.io/stable/installation/",children:"pipx"})," installed"]}),"\n",(0,t.jsxs)(e.li,{children:["Before installing Langflow, we recommend creating a virtual environment to isolate your Python dependencies with ",(0,t.jsx)(e.a,{href:"https://docs.astral.sh/uv/pip/environments",children:"uv"}),", ",(0,t.jsx)(e.a,{href:"https://docs.python.org/3/library/venv.html",children:"venv"}),", or ",(0,t.jsx)(e.a,{href:"https://anaconda.org/anaconda/conda",children:"conda"})]}),"\n"]}),"\n",(0,t.jsx)(e.h3,{id:"install-langflow-with-pip-or-pipx",children:"Install Langflow with pip or pipx"}),"\n",(0,t.jsx)(e.p,{children:"Install Langflow with uv:"}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"uv ",props:{style:{color:"#FFA657"}}},{content:"pip install langflow",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsx)(e.p,{children:"Install Langflow with pip:"}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"python ",props:{style:{color:"#FFA657"}}},{content:"-m ",props:{style:{color:"#79C0FF"}}},{content:"pip install langflow",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsx)(e.p,{children:"Install Langflow with pipx using the Python 3.10 executable:"}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"pipx ",props:{style:{color:"#FFA657"}}},{content:"install langflow ",props:{style:{color:"#A5D6FF"}}},{content:"--python ",props:{style:{color:"#79C0FF"}}},{content:"python3.",props:{style:{color:"#A5D6FF"}}},{content:"10",props:{style:{color:"#79C0FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsx)(e.h2,{id:"run-langflow",children:"Run Langflow"}),"\n",(0,t.jsxs)(e.ol,{children:["\n",(0,t.jsx)(e.li,{children:"To run Langflow with uv, enter the following command."}),"\n"]}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"uv ",props:{style:{color:"#FFA657"}}},{content:"run langflow run",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsxs)(e.ol,{start:"2",children:["\n",(0,t.jsx)(e.li,{children:"To run Langflow with pip, enter the following command."}),"\n"]}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"python ",props:{style:{color:"#FFA657"}}},{content:"-m ",props:{style:{color:"#79C0FF"}}},{content:"langflow run",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsxs)(e.ol,{start:"2",children:["\n",(0,t.jsxs)(e.li,{children:["Confirm that a local Langflow instance starts by visiting\xa0",(0,t.jsx)(e.code,{children:"http://127.0.0.1:7860"}),"\xa0in a Chromium-based browser."]}),"\n"]}),"\n",(0,t.jsxs)(e.p,{children:["Now that Langflow is running, follow the ",(0,t.jsx)(e.a,{href:"/get-started-quickstart",children:"Quickstart"})," to create your first flow."]}),"\n",(0,t.jsx)(e.h2,{id:"manage-langflow-versions",children:"Manage Langflow versions"}),"\n",(0,t.jsx)(e.p,{children:"To upgrade Langflow to the latest version with uv, use the uv pip upgrade command."}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"uv ",props:{style:{color:"#FFA657"}}},{content:"pip install langflow ",props:{style:{color:"#A5D6FF"}}},{content:"-U",props:{style:{color:"#79C0FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsx)(e.p,{children:"To upgrade Langflow to the latest version, use the pip upgrade command."}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"python ",props:{style:{color:"#FFA657"}}},{content:"-m ",props:{style:{color:"#79C0FF"}}},{content:"pip install langflow ",props:{style:{color:"#A5D6FF"}}},{content:"-U",props:{style:{color:"#79C0FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsx)(e.p,{children:"To install a specific version of the Langflow package, add the required version to the command."}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"python ",props:{style:{color:"#FFA657"}}},{content:"-m ",props:{style:{color:"#79C0FF"}}},{content:"pip install langflow==",props:{style:{color:"#A5D6FF"}}},{content:"1.1",props:{style:{color:"#79C0FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsxs)(e.p,{children:["To reinstall Langflow and all of its dependencies, add the ",(0,t.jsx)(e.code,{children:"--force-reinstall"})," flag to the command."]}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"python ",props:{style:{color:"#FFA657"}}},{content:"-m ",props:{style:{color:"#79C0FF"}}},{content:"pip install langflow ",props:{style:{color:"#A5D6FF"}}},{content:"--force-reinstall",props:{style:{color:"#79C0FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsx)(e.h2,{id:"datastax-langflow",children:"DataStax Langflow"}),"\n",(0,t.jsxs)(e.p,{children:[(0,t.jsx)(e.strong,{children:"DataStax Langflow"})," is a hosted version of Langflow integrated with\xa0",(0,t.jsx)(e.a,{href:"https://www.datastax.com/products/datastax-astra",children:"Astra DB"}),". Be up and running in minutes with no installation or setup required.\xa0",(0,t.jsx)(e.a,{href:"https://astra.datastax.com/signup?type=langflow",children:"Sign up for free"}),"."]}),"\n",(0,t.jsx)(e.h2,{id:"common-installation-issues",children:"Common installation issues"}),"\n",(0,t.jsx)(e.p,{children:"This is a list of possible issues that you may encounter when installing and running Langflow."}),"\n",(0,t.jsxs)(e.h3,{id:"no-langflow__main__-module",children:["No ",(0,t.jsx)(e.code,{children:"langflow.__main__"})," module"]}),"\n",(0,t.jsxs)(e.p,{children:["When you try to run Langflow with the command ",(0,t.jsx)(e.code,{children:"langflow run"}),", you encounter the following error:"]}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:">",props:{style:{color:"#FF7B72"}}},{content:" No\xa0module\xa0named\xa0",props:{style:{color:"#C9D1D9"}}},{content:"'langflow.__main__'",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsxs)(e.ol,{children:["\n",(0,t.jsxs)(e.li,{children:["Run\xa0",(0,t.jsx)(e.code,{children:"python\xa0-m langflow run"}),"\xa0instead of\xa0",(0,t.jsx)(e.code,{children:"langflow run"}),"."]}),"\n",(0,t.jsxs)(e.li,{children:["If that doesn't work, reinstall the latest Langflow version with\xa0",(0,t.jsx)(e.code,{children:"python\xa0-m pip install langflow\xa0-U"}),"."]}),"\n",(0,t.jsxs)(e.li,{children:["If that doesn't work, reinstall Langflow and its dependencies with\xa0",(0,t.jsx)(e.code,{children:"python\xa0-m pip install langflow\xa0--pre\xa0-U\xa0--force-reinstall"}),"."]}),"\n"]}),"\n",(0,t.jsx)(e.h3,{id:"langflow-runtraceback",children:"Langflow runTraceback"}),"\n",(0,t.jsxs)(e.p,{children:["When you try to run Langflow using the command\xa0",(0,t.jsx)(e.code,{children:"langflow run"}),", you encounter the following error:"]}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:">",props:{style:{color:"#FF7B72"}}},{content:" langflow runTraceback (",props:{style:{color:"#C9D1D9"}}},{content:"most ",props:{style:{color:"#FFA657"}}},{content:"recent call last",props:{style:{color:"#A5D6FF"}}},{content:"): File ",props:{style:{color:"#C9D1D9"}}},{content:'".../langflow"',props:{style:{color:"#A5D6FF"}}},{content:", line 5, ",props:{style:{color:"#C9D1D9"}}},{content:"in <",props:{style:{color:"#FF7B72"}}},{content:"module",props:{style:{color:"#C9D1D9"}}},{content:">",props:{style:{color:"#FF7B72"}}},{content:" from langflow.__main__ import mainModuleNotFoundError: No module named ",props:{style:{color:"#C9D1D9"}}},{content:"'langflow.__main__'",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsx)(e.p,{children:"There are two possible reasons for this error:"}),"\n",(0,t.jsxs)(e.ol,{children:["\n",(0,t.jsxs)(e.li,{children:["You've installed Langflow using\xa0",(0,t.jsx)(e.code,{children:"pip install langflow"}),"\xa0but you already had a previous version of Langflow installed in your system. In this case, you might be running the wrong executable. To solve this issue, run the correct executable by running\xa0",(0,t.jsx)(e.code,{children:"python\xa0-m langflow run"}),"\xa0instead of\xa0",(0,t.jsx)(e.code,{children:"langflow run"}),". If that doesn't work, try uninstalling and reinstalling Langflow with\xa0",(0,t.jsx)(e.code,{children:"python\xa0-m pip install langflow\xa0--pre\xa0-U"}),"."]}),"\n",(0,t.jsxs)(e.li,{children:["Some version conflicts might have occurred during the installation process. Run\xa0",(0,t.jsx)(e.code,{children:"python\xa0-m pip install langflow\xa0--pre\xa0-U\xa0--force-reinstall"}),"\xa0to reinstall Langflow and its dependencies."]}),"\n"]}),"\n",(0,t.jsx)(e.h3,{id:"something-went-wrong-running-migrations",children:"Something went wrong running migrations"}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:">",props:{style:{color:"#FF7B72"}}},{content:" Something went wrong running migrations. Please, run\xa0",props:{style:{color:"#C9D1D9"}}},{content:"'langflow migration --fix'",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsx)(e.p,{children:"Clear the cache by deleting the contents of the cache folder."}),"\n",(0,t.jsx)(e.p,{children:"This folder can be found at:"}),"\n",(0,t.jsxs)(e.ul,{children:["\n",(0,t.jsxs)(e.li,{children:[(0,t.jsx)(e.strong,{children:"Linux or WSL2 on Windows"}),":\xa0",(0,t.jsx)(e.code,{children:"home/langflow.__main__ module",id:"no-langflow__main__-module",level:3},{value:"Langflow runTraceback",id:"langflow-runtraceback",level:3},{value:"Something went wrong running migrations",id:"something-went-wrong-running-migrations",level:3},{value:"Langflow installation freezes at pip dependency resolution",id:"langflow-installation-freezes-at-pip-dependency-resolution",level:3}];function g(n){const e={a:"a",code:"code",h2:"h2",h3:"h3",li:"li",ol:"ol",p:"p",strong:"strong",ul:"ul",...(0,l.R)(),...n.components};return d||u("CH",!1),d.Code||u("CH.Code",!0),(0,t.jsxs)(t.Fragment,{children:[(0,t.jsx)("style",{dangerouslySetInnerHTML:{__html:'[data-ch-theme="github-dark"] { --ch-t-colorScheme: dark;--ch-t-foreground: #c9d1d9;--ch-t-background: #0d1117;--ch-t-lighter-inlineBackground: #0d1117e6;--ch-t-editor-background: #0d1117;--ch-t-editor-foreground: #c9d1d9;--ch-t-editor-lineHighlightBackground: #6e76811a;--ch-t-editor-rangeHighlightBackground: #ffffff0b;--ch-t-editor-infoForeground: #3794FF;--ch-t-editor-selectionBackground: #264F78;--ch-t-focusBorder: #1f6feb;--ch-t-tab-activeBackground: #0d1117;--ch-t-tab-activeForeground: #c9d1d9;--ch-t-tab-inactiveBackground: #010409;--ch-t-tab-inactiveForeground: #8b949e;--ch-t-tab-border: #30363d;--ch-t-tab-activeBorder: #0d1117;--ch-t-editorGroup-border: #30363d;--ch-t-editorGroupHeader-tabsBackground: #010409;--ch-t-editorLineNumber-foreground: #6e7681;--ch-t-input-background: #0d1117;--ch-t-input-foreground: #c9d1d9;--ch-t-input-border: #30363d;--ch-t-icon-foreground: #8b949e;--ch-t-sideBar-background: #010409;--ch-t-sideBar-foreground: #c9d1d9;--ch-t-sideBar-border: #30363d;--ch-t-list-activeSelectionBackground: #6e768166;--ch-t-list-activeSelectionForeground: #c9d1d9;--ch-t-list-hoverBackground: #6e76811a;--ch-t-list-hoverForeground: #c9d1d9; }'}}),"\n",(0,t.jsxs)(e.p,{children:["You can deploy Langflow either locally or as a hosted service with ",(0,t.jsx)(e.a,{href:"#datastax-langflow",children:(0,t.jsx)(e.strong,{children:"Datastax Langflow"})}),"."]}),"\n",(0,t.jsx)(e.h2,{id:"install-langflow-locally",children:"Install Langflow locally"}),"\n",(0,t.jsxs)(e.p,{children:["Install Langflow locally with ",(0,t.jsx)(e.a,{href:"https://docs.astral.sh/uv/getting-started/installation/",children:"uv (recommended)"}),", ",(0,t.jsx)(e.a,{href:"https://pypi.org/project/pip/",children:"pip"}),",\xa0or ",(0,t.jsx)(e.a,{href:"https://pipx.pypa.io/stable/installation/",children:"pipx"}),"."]}),"\n",(0,t.jsx)(e.h3,{id:"prerequisites",children:"Prerequisites"}),"\n",(0,t.jsxs)(e.ul,{children:["\n",(0,t.jsxs)(e.li,{children:[(0,t.jsx)(e.a,{href:"https://www.python.org/downloads/release/python-3100/",children:"Python 3.10 to 3.12"})," installed"]}),"\n",(0,t.jsxs)(e.li,{children:[(0,t.jsx)(e.a,{href:"https://docs.astral.sh/uv/getting-started/installation/",children:"uv"}),", ",(0,t.jsx)(e.a,{href:"https://pypi.org/project/pip/",children:"pip"}),", or ",(0,t.jsx)(e.a,{href:"https://pipx.pypa.io/stable/installation/",children:"pipx"})," installed"]}),"\n",(0,t.jsxs)(e.li,{children:["Before installing Langflow, we recommend creating a virtual environment to isolate your Python dependencies with ",(0,t.jsx)(e.a,{href:"https://docs.astral.sh/uv/pip/environments",children:"uv"}),", ",(0,t.jsx)(e.a,{href:"https://docs.python.org/3/library/venv.html",children:"venv"}),", or ",(0,t.jsx)(e.a,{href:"https://anaconda.org/anaconda/conda",children:"conda"})]}),"\n"]}),"\n",(0,t.jsx)(e.h3,{id:"install-langflow-with-pip-or-pipx",children:"Install Langflow with pip or pipx"}),"\n",(0,t.jsx)(e.p,{children:"Install Langflow with uv:"}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"uv ",props:{style:{color:"#FFA657"}}},{content:"pip install langflow",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsx)(e.p,{children:"Install Langflow with pip:"}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"python ",props:{style:{color:"#FFA657"}}},{content:"-m ",props:{style:{color:"#79C0FF"}}},{content:"pip install langflow",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsx)(e.p,{children:"Install Langflow with pipx using the Python 3.10 executable:"}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"pipx ",props:{style:{color:"#FFA657"}}},{content:"install langflow ",props:{style:{color:"#A5D6FF"}}},{content:"--python ",props:{style:{color:"#79C0FF"}}},{content:"python3.",props:{style:{color:"#A5D6FF"}}},{content:"10",props:{style:{color:"#79C0FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsx)(e.h2,{id:"run-langflow",children:"Run Langflow"}),"\n",(0,t.jsxs)(e.ol,{children:["\n",(0,t.jsx)(e.li,{children:"To run Langflow with uv, enter the following command."}),"\n"]}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"uv ",props:{style:{color:"#FFA657"}}},{content:"run langflow run",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsxs)(e.ol,{start:"2",children:["\n",(0,t.jsx)(e.li,{children:"To run Langflow with pip, enter the following command."}),"\n"]}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"python ",props:{style:{color:"#FFA657"}}},{content:"-m ",props:{style:{color:"#79C0FF"}}},{content:"langflow run",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsxs)(e.ol,{start:"3",children:["\n",(0,t.jsxs)(e.li,{children:["Confirm that a local Langflow instance starts by visiting\xa0",(0,t.jsx)(e.code,{children:"http://127.0.0.1:7860"}),"\xa0in a Chromium-based browser."]}),"\n"]}),"\n",(0,t.jsxs)(e.p,{children:["Now that Langflow is running, follow the ",(0,t.jsx)(e.a,{href:"/get-started-quickstart",children:"Quickstart"})," to create your first flow."]}),"\n",(0,t.jsx)(e.h2,{id:"manage-langflow-versions",children:"Manage Langflow versions"}),"\n",(0,t.jsx)(e.p,{children:"To upgrade Langflow to the latest version with uv, use the uv pip upgrade command."}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"uv ",props:{style:{color:"#FFA657"}}},{content:"pip install langflow ",props:{style:{color:"#A5D6FF"}}},{content:"-U",props:{style:{color:"#79C0FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsx)(e.p,{children:"To upgrade Langflow to the latest version, use the pip upgrade command."}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"python ",props:{style:{color:"#FFA657"}}},{content:"-m ",props:{style:{color:"#79C0FF"}}},{content:"pip install langflow ",props:{style:{color:"#A5D6FF"}}},{content:"-U",props:{style:{color:"#79C0FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsx)(e.p,{children:"To install a specific version of the Langflow package, add the required version to the command."}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"python ",props:{style:{color:"#FFA657"}}},{content:"-m ",props:{style:{color:"#79C0FF"}}},{content:"pip install langflow==",props:{style:{color:"#A5D6FF"}}},{content:"1.1",props:{style:{color:"#79C0FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsxs)(e.p,{children:["To reinstall Langflow and all of its dependencies, add the ",(0,t.jsx)(e.code,{children:"--force-reinstall"})," flag to the command."]}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"python ",props:{style:{color:"#FFA657"}}},{content:"-m ",props:{style:{color:"#79C0FF"}}},{content:"pip install langflow ",props:{style:{color:"#A5D6FF"}}},{content:"--force-reinstall",props:{style:{color:"#79C0FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsx)(e.h2,{id:"datastax-langflow",children:"DataStax Langflow"}),"\n",(0,t.jsxs)(e.p,{children:[(0,t.jsx)(e.strong,{children:"DataStax Langflow"})," is a hosted version of Langflow integrated with\xa0",(0,t.jsx)(e.a,{href:"https://www.datastax.com/products/datastax-astra",children:"Astra DB"}),". Be up and running in minutes with no installation or setup required.\xa0",(0,t.jsx)(e.a,{href:"https://astra.datastax.com/signup?type=langflow",children:"Sign up for free"}),"."]}),"\n",(0,t.jsx)(e.h2,{id:"common-installation-issues",children:"Common installation issues"}),"\n",(0,t.jsx)(e.p,{children:"This is a list of possible issues that you may encounter when installing and running Langflow."}),"\n",(0,t.jsxs)(e.h3,{id:"no-langflow__main__-module",children:["No ",(0,t.jsx)(e.code,{children:"langflow.__main__"})," module"]}),"\n",(0,t.jsxs)(e.p,{children:["When you try to run Langflow with the command ",(0,t.jsx)(e.code,{children:"langflow run"}),", you encounter the following error:"]}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:">",props:{style:{color:"#FF7B72"}}},{content:" No\xa0module\xa0named\xa0",props:{style:{color:"#C9D1D9"}}},{content:"'langflow.__main__'",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsxs)(e.ol,{children:["\n",(0,t.jsxs)(e.li,{children:["Run\xa0",(0,t.jsx)(e.code,{children:"python\xa0-m langflow run"}),"\xa0instead of\xa0",(0,t.jsx)(e.code,{children:"langflow run"}),"."]}),"\n",(0,t.jsxs)(e.li,{children:["If that doesn't work, reinstall the latest Langflow version with\xa0",(0,t.jsx)(e.code,{children:"python\xa0-m pip install langflow\xa0-U"}),"."]}),"\n",(0,t.jsxs)(e.li,{children:["If that doesn't work, reinstall Langflow and its dependencies with\xa0",(0,t.jsx)(e.code,{children:"python\xa0-m pip install langflow\xa0--pre\xa0-U\xa0--force-reinstall"}),"."]}),"\n"]}),"\n",(0,t.jsx)(e.h3,{id:"langflow-runtraceback",children:"Langflow runTraceback"}),"\n",(0,t.jsxs)(e.p,{children:["When you try to run Langflow using the command\xa0",(0,t.jsx)(e.code,{children:"langflow run"}),", you encounter the following error:"]}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:">",props:{style:{color:"#FF7B72"}}},{content:" langflow runTraceback (",props:{style:{color:"#C9D1D9"}}},{content:"most ",props:{style:{color:"#FFA657"}}},{content:"recent call last",props:{style:{color:"#A5D6FF"}}},{content:"): File ",props:{style:{color:"#C9D1D9"}}},{content:'".../langflow"',props:{style:{color:"#A5D6FF"}}},{content:", line 5, ",props:{style:{color:"#C9D1D9"}}},{content:"in <",props:{style:{color:"#FF7B72"}}},{content:"module",props:{style:{color:"#C9D1D9"}}},{content:">",props:{style:{color:"#FF7B72"}}},{content:" from langflow.__main__ import mainModuleNotFoundError: No module named ",props:{style:{color:"#C9D1D9"}}},{content:"'langflow.__main__'",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsx)(e.p,{children:"There are two possible reasons for this error:"}),"\n",(0,t.jsxs)(e.ol,{children:["\n",(0,t.jsxs)(e.li,{children:["You've installed Langflow using\xa0",(0,t.jsx)(e.code,{children:"pip install langflow"}),"\xa0but you already had a previous version of Langflow installed in your system. In this case, you might be running the wrong executable. To solve this issue, run the correct executable by running\xa0",(0,t.jsx)(e.code,{children:"python\xa0-m langflow run"}),"\xa0instead of\xa0",(0,t.jsx)(e.code,{children:"langflow run"}),". If that doesn't work, try uninstalling and reinstalling Langflow with\xa0",(0,t.jsx)(e.code,{children:"python\xa0-m pip install langflow\xa0--pre\xa0-U"}),"."]}),"\n",(0,t.jsxs)(e.li,{children:["Some version conflicts might have occurred during the installation process. Run\xa0",(0,t.jsx)(e.code,{children:"python\xa0-m pip install langflow\xa0--pre\xa0-U\xa0--force-reinstall"}),"\xa0to reinstall Langflow and its dependencies."]}),"\n"]}),"\n",(0,t.jsx)(e.h3,{id:"something-went-wrong-running-migrations",children:"Something went wrong running migrations"}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:">",props:{style:{color:"#FF7B72"}}},{content:" Something went wrong running migrations. Please, run\xa0",props:{style:{color:"#C9D1D9"}}},{content:"'langflow migration --fix'",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsx)(e.p,{children:"Clear the cache by deleting the contents of the cache folder."}),"\n",(0,t.jsx)(e.p,{children:"This folder can be found at:"}),"\n",(0,t.jsxs)(e.ul,{children:["\n",(0,t.jsxs)(e.li,{children:[(0,t.jsx)(e.strong,{children:"Linux or WSL2 on Windows"}),":\xa0",(0,t.jsx)(e.code,{children:"home/
_10python -m langflow run
http://127.0.0.1:7860 in a Chromium-based browser.Now that Langflow is running, follow the Quickstart to create your first flow.
diff --git a/get-started-quickstart.html b/get-started-quickstart.html index de767a1ef9..61f23bdf32 100644 --- a/get-started-quickstart.html +++ b/get-started-quickstart.html @@ -10,7 +10,7 @@ - + diff --git a/index.html b/index.html index 7589530ae3..8ab9b77949 100644 --- a/index.html +++ b/index.html @@ -10,7 +10,7 @@ - + diff --git a/integrations-assemblyai.html b/integrations-assemblyai.html index 6626a96c27..184c08f44d 100644 --- a/integrations-assemblyai.html +++ b/integrations-assemblyai.html @@ -10,7 +10,7 @@ - + diff --git a/integrations-composio.html b/integrations-composio.html index 7e56b8b880..75e23d2f07 100644 --- a/integrations-composio.html +++ b/integrations-composio.html @@ -10,7 +10,7 @@ - + diff --git a/integrations-langfuse.html b/integrations-langfuse.html index 58bb8d5670..c0868ed6e8 100644 --- a/integrations-langfuse.html +++ b/integrations-langfuse.html @@ -10,7 +10,7 @@ - + diff --git a/integrations-langsmith.html b/integrations-langsmith.html index 4bb41e6139..ba233d0c63 100644 --- a/integrations-langsmith.html +++ b/integrations-langsmith.html @@ -10,7 +10,7 @@ - + diff --git a/integrations-langwatch.html b/integrations-langwatch.html index aa10e5c160..82be9fb277 100644 --- a/integrations-langwatch.html +++ b/integrations-langwatch.html @@ -10,7 +10,7 @@ - + diff --git a/integrations-setup-google-cloud-vertex-ai-langflow.html b/integrations-setup-google-cloud-vertex-ai-langflow.html index 368a735832..f5d6f8acd3 100644 --- a/integrations-setup-google-cloud-vertex-ai-langflow.html +++ b/integrations-setup-google-cloud-vertex-ai-langflow.html @@ -10,7 +10,7 @@ - + diff --git a/integrations-setup-google-oauth-langflow.html b/integrations-setup-google-oauth-langflow.html index 1fab67d8ed..844b52d552 100644 --- a/integrations-setup-google-oauth-langflow.html +++ b/integrations-setup-google-oauth-langflow.html @@ -10,7 +10,7 @@ - + diff --git a/integrations/notion/notion-agent-conversational.html b/integrations/notion/notion-agent-conversational.html index 9d19e0b4ed..318860dfc7 100644 --- a/integrations/notion/notion-agent-conversational.html +++ b/integrations/notion/notion-agent-conversational.html @@ -10,7 +10,7 @@ - + diff --git a/integrations/notion/notion-agent-meeting-notes.html b/integrations/notion/notion-agent-meeting-notes.html index 6bc6790393..03465ccf04 100644 --- a/integrations/notion/notion-agent-meeting-notes.html +++ b/integrations/notion/notion-agent-meeting-notes.html @@ -10,7 +10,7 @@ - + diff --git a/integrations/notion/setup.html b/integrations/notion/setup.html index 892c77e913..caefd0c695 100644 --- a/integrations/notion/setup.html +++ b/integrations/notion/setup.html @@ -10,7 +10,7 @@ - + diff --git a/sitemap.xml b/sitemap.xml index 91469b8e34..8fa439ff39 100644 --- a/sitemap.xml +++ b/sitemap.xml @@ -1 +1 @@ -