Cannot install (operation not permitted)

[folmert]

yarn add jest-canvas-mock:

error An unexpected error occurred: "EPERM: operation not permitted,

[hustcc]

Give me more information.

[folmert]

What information specifically?

Newest yarn & node, Windows 10, running on Cmder with admin rights.

Full output:

C:\Users\user\projects\FE\mine>yarn add jest-canvas-mock
yarn add v1.3.2
(node:39128) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.
warning ....\package.json: No license field
[1/4] Resolving packages...
[2/4] Fetching packages...
info fsevents@1.2.4: The platform "win32" is incompatible with this module.
info "fsevents@1.2.4" is an optional dependency and failed compatibility check. Excluding it from installation.
[3/4] Linking dependencies...
error An unexpected error occurred: "EPERM: operation not permitted, unlink 'C:\Users\user\projects\FE\mine\node_modules\node-sass\vendor\win32-x64-64\binding.node'".
info If you think this is a bug, please open a bug report with the information provided in "C:\Users\user\projects\FE\mine\yarn-error.log".
info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.

Looks like a common yarn issue, though: yarnpkg/yarn#992

[folmert]

However, it does work when I add it to package.json, remove all node_modules and run yarn install again.

[hustcc]

Seem issue of yarn.