No server on port 9100

Hi! I’m getting this error while trying to run karma with grunt-karma:

Running tasks: karma:unit:run

Running "karma:unit:run" (karma) task
Verifying property karma.unit exists in config...OK
File: [no files]
There is no server listening on port 9100

Seems like grunt-karma doesn’t start server. While default command does:

karma start karma.conf.coffee 

Here is part of grunt config:

    karma:
      options:
        configFile: 'karma.conf.coffee'
        background: true
      unit: {}
      unit_all:
        browsers: ['PhantomJS', 'Chrome', 'Firefox']

I’m 0.9.5

[cyrusdavid]

Make sure the task isn’t karma:unit:run like what taktran said.

Mine was previously:

grunt.registerTask('default', ['karma:unit:run', 'watch']);

Changed it to:

grunt.registerTask('default', ['karma:unit', 'watch']);

Now everything works nicely with grunt-contrib-watch! 💪

[geoffreywiseman]

@oliamb wrote:

In the server task, you can either run karma:watch or karma:watch:start. The former will run the test at startup while the second will only run the tests after the first file change has been detected.

Your configuration works fine for me, except that both karma:watch and karma:watch:start have the same effect – neither runs the tests at startup. I’d rather run the tests at startup – any further suggestions?