问题
Started getting this random error when I started a new project and made a new gulpfile.
I get it whenever I run gulp. It isn't just on this project it has started happening on all other projects.
I have read that there might be an issue with environment variables so I have updated these.
I have also recently ran the ruby installer.
Screenshot below shows my environment variables:
I'm at a deadend.. Would appreciate some help.
Cheers
Update - Full Error message after running gulp:
gulp : The term 'gulp' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. At line:1 char:1 + gulp + ~~~~ + CategoryInfo : ObjectNotFound: (gulp:String) [], CommandNotFoundException + FullyQualifiedErrorId : CommandNotFoundException
回答1:
In my case it was that I had to install
gulp-cli by command npm -g install gulp-cli (also I had to install gulp localy in project)
回答2:
I know this is a bit late to answer to question but who knows someone else might need it too. All you need to do is install gulp globally: npm install gulp -g and it will work just fine
回答3:
I ran into this issue when I updated to the newest version of NPM. I reinstalled Node to version 6.11 and all my problems were solved. I was running Node 8.1 previously.
Node Downloads Page: https://nodejs.org/en/download/
If you go this route, ensure that the installer will add the necessary routes to your machine's path.
回答4:
I too get that same issue sometimes. It got solved by below steps. It might get solved with 1st step itself sometimes.
Uninstall and install both node and gulp(global and local)
Run npm config rm proxy
Run npm config set registry http://registry.npmjs.org/
Check path variables. Type environment variables in Windows and edit it to your installed path.
来源：https://stackoverflow.com/questions/43156079/gulp-the-term-gulp-is-not-recognized-as-the-name-of-a-cmdlet