better error message when plugin fail to compile

[lionelvillard]

getting:

$ fsh plugin install shell-project-plugin
Found module shell-project-plugin
Found module shell-project-plugin
Unable to resolve plugins

Unable to resolve plugins should be Unable to compile shell-project-plugin. Aborting. ?

On a side note I'm not sure why Found module shell-project-plugin is printed twice.

[starpit]

dup of #425 ?

[lionelvillard]

not the same. #425 is about npm not being found

[starpit]

i think they are the same? the root issue is that plugin install doesn't properly report most installation failures.