Bower install packages EPERM rename error

Question

clean windows 7 professional installation with node and git.

simple bower.json

{
  "name": "name123456",
  "version": "1.0.0",
  "dependencies": {
    "closure-compiler": "http://dl.google.com/closure-compiler/compiler-latest.zip"
  }
}

run bower install and it dies with permission error.

any idea why this happens? thank u.

Answer 1

It's a bug in bower 1.2.7 and up related to an upgraded zip library. A workaround is reinstall bower, as it will force an upgrade for the zip library:

bower cache clean
npm uninstall -g bower
npm install -g bower

For more information, see https://github.com/bower/bower/issues/991

Note that the above is not sufficient with an older version of Node (I tried 0.9.9). With latest version of node, it seems to be working fine again.

Answer 2

If the accepted answer doesn't work for you, you can try the line below.

npm uninstall -g bower && npm update decompress-zip && npm install -g bower

Source - Github

Answer 3

清理缓存。

bower cache clean

Answer 4

Hopefully this will help someone else. I was getting this same error until I disabled my antivirus.