I see the following message when running the npm install or npm command from the terminal. Executing node works as expected.
> npm install
/usr/bin/env: ‘bash\r’: No such file or directory
I think the better solution would be installing NOde using nvm on WSL, then you won't have this problem.
This happened to me today after I updated node and npm through nvm. I realized that indeed the .nvm path was missing from echo $PATH. Then I noticed that npm use v16.14.0 would re-add it to $PATH and make npm i work again. However, this only worked for the current tab and to make it work in new sessions/tabs I had to run:
nvm alias default v16.14.0
This is a line endings issue, but not from Ubuntu. Make sure you do have node and npm installed correctly by using the command:
sudo apt install nodejs npm
Then stop Windows path variables being shared with WSL by editing the /etc/wsl.conf file in WSL. If the file doesn't exist, execute sudo touch /etc/wsl.conf first. Edit the file with the command sudo nano /etc/wsl.conf and add the following configuration:
[interop]
appendWindowsPath = false
Then restart WSL2 with command wsl --shutdown in Windows.
Note: this also affects pyenv command, see /usr/bin/env: ‘bash\r’: No such file or directory: Incompatible line-endings (WSL?)