grunt serve aborted due to warnings in yeoman mean

Question

I was following a tutorial on mean.io, and in it, i had to install yo angular

after sometime everything was installed and finally the i had to run `grunt serve'

then this error/warning comes

mukund@mukund-ThinkPad-Edge-E431:~/MeanApp/client$ grunt serve
Running "serve" task

Running "clean:server" (clean) task
>> 0 paths cleaned.

Running "wiredep:app" (wiredep) task

Running "wiredep:test" (wiredep) task

Running "wiredep:sass" (wiredep) task

Running "concurrent:server" (concurrent) task
Warning: Running "compass:server" (compass) task
Warning: Command failed: /bin/sh -c compass --version
/bin/sh: 1: compass: not found
 Use --force to continue.

Aborted due to warnings.


Execution Time (2015-07-16 10:01:13 UTC)
loading tasks                  10ms  ▇▇▇▇ 12%
loading grunt-contrib-compass  33ms  ▇▇▇▇▇▇▇▇▇▇▇▇▇ 40%
compass:server                 38ms  ▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇ 46%
Total 82ms Use --force to continue.

    Aborted due to warnings.


Execution Time (2015-07-16 10:01:12 UTC)
loading tasks                 10ms  ▇ 1%
loading grunt-contrib-clean   10ms  ▇ 1%
clean:server                   9ms  ▇ 1%
wiredep:app                  185ms  ▇▇▇▇▇▇▇▇ 24%
wiredep:test                  10ms  ▇ 1%
wiredep:sass                  12ms  ▇ 2%
loading grunt-concurrent       9ms  ▇ 1%
concurrent:server            515ms  ▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇ 67%
Total 766ms
mukund@mukund-ThinkPad-Edge-E431:~/MeanApp/client$

I followed this tutorial https://www.youtube.com/watch?v=OhPFgqHz68o

Ans when i ran with this command grunt serve --force

I got the required page @ htttp://localhost/9000/#/ page with without any style

Answer 1

You need to install compass. It is used by the SASS which is included in the angular yeoman generator.

If you have ruby installed you can do.

gem install compass

And don't use --force ever. Its not really meant for all the cases but grunt throws it for every error/warning except fatal errors.