Error when trying to install loopback cli tool

Question

I have been trying to install loopback nodejs framework on windows using the command npm install -g loopback-cli. However, i am getting the following error

> gyp ERR! configure error gyp ERR! stack Error: Can't find Python
> executable "python", you can set the PYTHON env variable. gyp ERR!
> stack     at PythonFinder.failNoPython
> (C:\Users\HP\AppData\Roaming\npm\node_modules\npm\node_modules\npm-lifecycle\node_modules\node-gyp\lib\configure.js:483:19)
> gyp ERR! stack     at PythonFinder.<anonymous>
> (C:\Users\HP\AppData\Roaming\npm\node_modules\npm\node_modules\npm-lifecycle\node_modules\node-gyp\lib\configure.js:508:16)
> gyp ERR! stack     at
> C:\Users\HP\AppData\Roaming\npm\node_modules\npm\node_modules\graceful-fs\polyfills.js:284:29
> gyp ERR! stack     at FSReqWrap.oncomplete (fs.js:152:21) gyp ERR!
> System Windows_NT 10.0.16299 gyp ERR! command "C:\\Program
> Files\\nodejs\\node.exe"
> "C:\\Users\\HP\\AppData\\Roaming\\npm\\node_modules\\npm\\node_modules\\npm-lifecycle\\node_modules\\node-gyp\\bin\\node-gyp.js"
> "rebuild" gyp ERR! cwd
> C:\Users\HP\AppData\Roaming\npm\node_modules\loopback-cli\node_modules\ursa
> gyp ERR! node -v v8.11.1 gyp ERR! node-gyp -v v3.6.2 gyp ERR! not ok
> npm WARN optional SKIPPING OPTIONAL DEPENDENCY: [email protected]
> (node_modules\loopback-cli\node_modules\ursa): npm WARN optional
> SKIPPING OPTIONAL DEPENDENCY: [email protected] install: `node-gyp rebuild`
> npm WARN optional SKIPPING OPTIONAL DEPENDENCY: Exit status 1

Gyp requires Python, it's telling you that. Do you have Python installed? — Sam H.
– Sam H., Commented Mar 31, 2018 at 18:18
@SamH. i do not know. What am i supposed to do to install it or check if it is present — M.A.G
– M.A.G, Commented Mar 31, 2018 at 18:22
It you type python into the command line and got enter, does it open a Python REPL or throw an error? — Sam H.
– Sam H., Commented Mar 31, 2018 at 18:23
@SamH. it throws an error that the term python is not recognized — M.A.G
– M.A.G, Commented Mar 31, 2018 at 18:30
Hopefully it is now clear that this is the problem. This answer has the steps you should follow stackoverflow.com/a/39648550/3518108 — Sam H.
– Sam H., Commented Mar 31, 2018 at 18:35

user6507599 · Accepted Answer · 2018-04-02 00:54:20Z

2

You need Python 2.7.x for this to work on your machine. Your windows machine is missing essential build tools.

Install windows build tools from npm.

npm install --global --production windows-build-tools

answered Apr 2, 2018 at 0:54

user6507599

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