警告未为 npm 安装卸载

Question

I downloaded and installed nodejs on Windows. I'm trying to uninstall the version of typescript I have to get to an older version. When I run

npm uninstall typescript 

or

npm uninstall -g typescript

I get

npm warn uninstall not installed in C:\Program Files\nodejs\node_modules: "typescript@0.9.7"

How can I uninstall typescript without having npm uninstall work? Thanks in advance.

Answer 1

You should have been able to uninstall typescript with the command

npm rm typescript
npm rm -g typescript

which is equivalent to uninstall . If that doesn't work, it is safe to find the typescript directory in Windows Explorer under C:\Program Files\nodejs\node_modules and remove it.

This should get you to a state with no typescript installed:

npm ls typescript
npm ls -g typescript

both show (empty) .

Second point: npm view typescript version is not showing you information about your local setup, but rather the state of the npm repository, so it will always show you the version that corresponds to typescript@latest . At the time you asked this question, it was 0.9.7; it is now 1.3.0

Finally: to install a specific version of typescript such as 0.9.5, do

npm install -g typescript@0.9.5

Also, in general, you should make sure you have the latest node and npm . Updating npm on windows is a little tricky; you should follow the guide here: https://github.com/npm/npm/wiki/Troubleshooting#upgrading-on-windows

Answer 2

I recommend you to reinstall npm as this shouldn't happen. When the issue is still going on, open the directory and manually remove the files from that package.