Better error message for missing xmllint, libxml2, libxslt

[rxaviers]

Current error message is clueless when required dependency shared libraries aren't installed:

$ grunt build-xml-entries
Running "build-xml-entries:all" (build-xml-entries) task

events.js:72
        throw er; // Unhandled 'error' event
              ^
Error: spawn ENOENT
    at errnoException (child_process.js:980:11)
    at Process.ChildProcess._handle.onexit (child_process.js:771:34)

Shall we have a better (more descriptive / how to address) error message here?

[scottgonzalez]

Proposed fix in jquery/grunt-jquery-content@8419b64. Waiting for confirmation from @rxaviers that this addresses his concern.

[rxaviers]

Now we get:

Running "build-xml-entries:all" (build-xml-entries) task
>> Missing executable: xsltproc.
>> You must install libxml2.
>> Downloads are available from http://www.xmlsoft.org/downloads.html
<WARN> Task "build-xml-entries:all" failed. Use --force to continue. </WARN>

Aborted due to warnings.

Looks great to me.
👍

[sudheerj]

I got the same error on "grunt deploy" command.Can you please let me know how to install libxml2 and libxslt libraries in windows environment.Thanks in advance..