NPM Cannot read property '0' of undefined

Question

After updated Node (upto v8.6.0) and npm (upto v5.5.1) I cannot execute command npm install. After npm install I\'ve error message:

npm ERR! Can         


        

Answer 1

I've made some tests:

nodejs@8.6.0 npm@5.5.1 - I have trouble and the test fails

nvm use 8.5.0

nodejs@8.5.0 npm@5.5.1 - I have trouble and the test fails

nvm use 8.4.0

nodejs@8.4.0 npm@5.5.1 - I have trouble and the test fails

npm install npm@^5 -g

nodejs@8.4.0 npm@5.4.2 - I have trouble and the test fails

nvm use 8.6.0
npm install npm@^4 -g

nodejs@8.6.0 npm@4.6.1 - no trouble, this fixes it.

Answer 2

Do 2 steps bellow (Window):

rm -rf ./node_modules to remove node folder

rm package-lock.json to remove package-lock.json file

then npm install to re-install the node modules

Answer 3

Just download and install latest Yarn which is also a node package manager, developed by facebook, but has a much better dependency management. Also update your node cli (optional).

And then, install your dependencies using yarn:

yarn install

or

yarn // short version of yarn install

No errors!

You can continue to use npm after you have installed all dependencies with yarn or continue with yarn....it's your choice.

Answer 4

I bumped into this issue using nvs (Node Version Switcher - https://github.com/jasongin/nvs) node@10.15.3 and npm@6.9.0. The reason was a local package I had linked with npm link. The solution was to remove that folder.

Answer 5

For me (npm@6.9.0) solved the issue by deleting node_modules and performing npm install, but without removing package.json.lock file.