generator-karma does not satisfy its siblings' peerDependencies requirements
You need to update all of your globally installed NPM packages. Run this command from your console:
npm update -gThis command will update all the packages listed to the latest version (specified by the tag config).
It will also install missing packages.
When you specify the -g flag, this command will update globally installed packages. If no package name is specified, all packages in the specified location (global or local) will be updated.
I had a similar issue and I did this in terminal:
rm -rf /usr/local/lib/node_modules/karma-*
and then updated the package.json:
"devDependencies": { "karma": "0.12.0", ... }then reinstall
sudo npm install karma
It worked for me