When I run the command grunt I get the following warning:
grunt
Running \"karma:unit\" (karma) task Warning: No provider for \"framework:jasmine\"! (
It happened to me because I had Karma installed globally, and when I ran karma start command it actually ran in /usr/... rather than my dev directory.
In my case the solution was to remove karma and install karma-cli instead.
npm remove -g karma npm install -g karma-cli