Error: npm is known not to run on Node.js V4.2.6

Question

how can I solve the following error? I use Ubuntu 16. When I run any npm command such as \"npm run dev\" I get this error:

ERROR: npm is known not to

Answer 1

I fixed the same issue with Ubuntu 16.04 by using following commands step by step.

Uninstall nodejs and install version 8.0

$ sudo apt remove nodejs npm  
$ curl -o- 
https://raw.githubusercontent.com/creationix/nvm/v0.33.2/install.sh | bash
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh"
$ nvm install 8.0
$ nvm use 8.0
$ node -v
v8.0.0

Answer 2

You can try downgrading the node version to switch from the bugged version using the following, upgrading also works if your app supports latest versions.

curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.4/install.sh | bash

nvm install 4.2.5

nvm use 4.2.5

//check with 
node -v

//To uninstall a node version 
nvm uninstall 4.2.6