Npm Not Responding After Changing The Prefix

I tried updating my IONIC CLI through the npm recently, the installation were successful a couple of time but the CLI version did not change. After a research I decided to change t

Solution 1:

I finally found a way around this . These are what I did

1. I deleted all the node_module folders in all my application (I am not sure if this is really necessary )

2. I did a complete uninstall of the node by following https://stackoverflow.com/a/20711410/1363169

3. I ran

   npm root -g
   

   which returns the path

   C:\Users\<username>\node_module
   

   instead of

    /usr/local 
   

   or wherever node is installed , in my own case node is install in

    C:\Users\<username>\AppData\Roaming\npm
   

   I then ran

     npm config set prefix "C:\Users\<username>\AppData\Roaming\npm"
   

Then I reinstalled cordova and ionic again

    npm install  -g cordova
      npm install ionic -g

and all is well again