npm ERR! cb.apply is not a function

Question

I am getting this error

npm ERR! cb.apply is not a function 

in Linux while doing npm install although my npm version is 6.9.0. My node version is v12.18.3. How to resolve this issue?

Answer 1

Would be helpful if you shared if it's Windows or Linux, but the error seems to occur on Windows. Possible solution:

1. Go to C:\Users(your username)\AppData\Roaming 2. Delete the npm folder (possibly back it up) and if there is one npm cache folder. 3. Run `npm cache clear --force` (--force is now required to clean cache) 

After that, npm install should work fine.

Answer 2

Mac/Macbook users

Since this question is fairly active and a top google result for this issue (I know the OP is using Linux) and we have every other OS covered in this list. Here is how to fix it on a Mac.

On a Mac you do not have the AppData\Roaming folder, so simply run npm root -g and then navigate to the hidden directory and delete the node_modules there. If using nvm you'll need to rerun nvm use x.x.x (where x.x.x is your version).