I'm trying to run the following command: npm install -g bower gulp cordova ionic tsd@next karma-cli protractor node-gyp coffee-script js-beautify typescript npm-check

I have installed Python, Visual Studio Express and node-gyp so thought I'd be good to go, however I get the following errors:

Regarding the "Can't find Python executable "python", you can set the PYTHON env variable." error, I'm a little confused because I have set the PYTHON environmental variable like so:

Any ideas please?

7

12 Answers

Try:

Install all the required tools and configurations using Microsoft's windows-build-tools by running npm install -g windows-build-tools from an elevated PowerShell (run as Administrator).

5

try

npm config set python D:\Library\Python\Python27\python.exe

0

You got to add python to your PATH variable. One thing you can do is Edit your Path variable now and add

;%PYTHON%;

Your variable PYTHON should point to the root directory of your python installation.

6

I installed python2.7 to solve this issue.

5

Just run below command with admin access

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

1

The easiest way is to let NPM do everything for you,

npm --add-python-to-path='true' --debug install --global windows-build-tools

1

I have recently encountered this issue in a dockerfile using node:16-alpine as base image. I have added following run command to fix the issue:

FROM node:alpine as build-stage
RUN apk add --no-cache python3 py3-pip make g++

Here, both tags node:alpine & node:16-alpine are same.

One of the following solutions will work for you:

1. npm config set python c:\Python\27\python.exe or set PYTHON=D:\Python\bin\Python.exe
2. npm config set python D:\Library\Python\Python27\python.exe
3. Let npm configure everything for you (takes forever to complete) npm --add-python-to-path='true' --debug install --global windows-build-tools (Must be executed via "Run As Administrator" PowerShell)

If not... Try to install the required package on your own (I did so, and it was node-sass, after installing it manually, the whole npm install was successfully completed

1

You are running the Command Prompt as an admin. You have only defined PYTHON for your user. You need to define it in the bottom "System variables" section.

Also, you should only point the variable to the folder, not directly to the executable.

3

My Problem was the usage of Node v16.

I went back to Node v12 (v14 is probably fine as well) and it worked.

0

Run : npm --vs2015 install --global windows-build-tools

1

npm config set python D:\Library\Python\Python27\python.exe

This kind off worked for me from Tom Gao's answer

Make sure to change in npmrc file as it doesnt automatically takes \ for the path and do add Python in env var also as mentioned in the answers.

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