An unexpected error occurred: "EPERM: operation not permitted in Yarn

Question

I am having problems installing new npm packages with Yarn. Every time I go on to add a new package it's throwing me this error. But when I delete my node_modules folder and run Yarn, everything works fine. Again when I try to add another package, it throws me the same error. Any solutions, I am having a headache right now.

Answer 1

In Windows first stop the development server and then try to install package.

Answer 2

I had same problem, I went into the Task Manager (CTRL+SHIFT+ESC) and killed all the NodeJs processes.

Answer 3

Stopping the server before running yarn add solved mine.

Answer 4

Press "Ctrl+C" to stop the server and repeat the installation.

Answer 5

if you're using visual studio code, cmd, or Windows Terminal, close it and run it in administrator mode. Usually, the reason for that error message is a result of limited privilege giving to the editor or npm or Yarn if you're using that.