Error UNMET PEER DEPENDENCY

[ColoArg93]

Hello, i have a problem. When i execute npm install -g generator-karma i have this error:

C:\WINDOWS\system32>npm install -g generator-karma

• dateformat node_modules\generator-karma\node_modules\yeoman-generator\node_modules\dateformat
• pretty-bytes node_modules\generator-karma\node_modules\yeoman-generator\node_modules\pretty-bytes C:\Users\ivan\AppData\Roaming\npm ├── generator-karma@1.0.0 └── UNMET PEER DEPENDENCY yo@>=1.0.0

npm WARN EPEERINVALID generator-karma@1.0.0 requires a peer of yo@>=1.0.0 but none was installed.

I thought it would be solved updating Yeoman, but i've been updated Yeoman to the last version (1.5.0) and i continue having the same problem.

Can anyone help me, please?

[SBoudrias]

Thanks, that's fixed now :)