npm install fails when react-native running

[pashute]

I took js files for some "pages" I'm making from a project that uses react-native-action-bar.

I get: Unable to resolve "react-native-action-bar" from ..."./C:\\mypath\\pages\\Mypage.js

I then run npm i react-native-action-bar and get

 `-- react-navigation@1.5.11
 `-- react-native-tab-view@0.0.74  (git://github.com/react-navigation/react-native-tab-view.git#36ebd834d78b841fc19778c966465d02fd1213bb)
.
.

Error: EPERM: operation not permitted, scandir ... cannot rename ...

Turns out it's not a react-native-action-bar issue... So I'll give an answer and close this, but wanted to help others who may encounter this kind of problem.

[pashute]

Answers here: expo/create-react-native-app#191

The error message can be misleading. My problem was that I had a react-native-cli window open (with yarn start). Closed it. Installed OK. Then ran the react-native-cli again, and all's ok now.