n8n/docs/troubleshooting.md
2020-04-21 16:03:19 +02:00

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# Troubleshooting
## Windows
If you are experiencing issues running n8n with the typical flow of:
```powershell
npx n8n
```
### Requirements
Please ensure that you have the following requirements fulfilled:
- Install latest version of [NodeJS](https://nodejs.org/en/download/)
- Install [Python 2.7](https://www.python.org/downloads/release/python-2717/) (It is okay to have multiple versions installed on the machine)
- Windows SDK
- C++ Desktop Development Tools
- Windows Build Tools
#### Install build tools
If you haven't satisfied the above, follow this procedure through your PowerShell (run with administrative privileges).
This command installs the build tools, windows SDK and the C++ development tools in one package.
```powershell
npm install --global --production windows-build-tools
```
#### Configure npm to use Python version 2.7
```powershell
npm config set python python2.7
```
#### Configure npm to use correct msvs version
```powershell
npm config set msvs_version 2017 --global
```
### Lesser known issues:
#### mmmagic npm package when using MSbuild tools with Visual Studio
While installing this package, `node-gyp` is run and it might fail to install it with an error appearing in the ballpark of:
```
gyp ERR! stack Error: spawn C:\Program Files (x86)\Microsoft Visual Studio\2019\**Enterprise**\MSBuild\Current\Bin\MSBuild.exe ENOENT
```
It is seeking the `MSBuild.exe` in a directory that does not exist. If you are using Visual Studio Community or vice versa, you can change the path of MSBuild with command:
```powershell
npm config set msbuild_path "C:\Program Files (x86)\Microsoft Visual Studio\2019\**Community**\MSBuild\Current\Bin\MSBuild.exe"
```
Attempt to install package again after running the command above.