Provide more information on less compilation error

[dziedrius]

I have a .less file and web essentials can't compile it, fails with:
/*
Compilation Error.
See error list for details
ParseError: Unrecognised input
*/

The same error was, when I was using wrong sequence of imports, but current file has no imports, web essentials see no errors in that file, so I can just guess what is happening.
May be it would be possible to output somewhere compiler command line that is used to compile current file, that I could copy to my console run.

Version is 2.1.2 (although in visual studio > about it is 1.0)

[am11]

What does the (detailed) message say in Error List (Ctrl + W, E)?

[dziedrius]

There are no detailed messages in Error List.

[am11]

Then unfortunately, there is nothing we can do about it. LESS compiler returns those errors.

For instance, if you miss a closing parenthesis, it would say "ParseError: missing closing )". If you use undefined variable, it would say "NameError: variable @foo is undefined".

The entries in the error list will then show you the same messages, with line and column number. Double-click the message and it will highlight the line where the error occurred. Also, LESS editor will underline the erroneous syntax for you.

[dziedrius]

That is the problem - there's no messages in error window and LESS editor has not underlined anything. And it compiles fine under another compiler.
Anyway, I'll try to investigate more closely to see if there's no additional information coming from compiler itself.

[am11]

Can you share the contents of your LESS file via http://gist.github.com or http://pastebin.com?

[dziedrius]

I'll try to isolate smaller piece, that is causing a problem, now it is quite big file.

[dziedrius]

Attached screenshot,

and gist to reproduce: https://gist.github.com/dziedrius/fbccc76d0f875a66e477

[am11]

Thank you!

I have found the issue.

The issue is due to 7feac7c in attempt to fix #916.

I thought that won't have side-effects and here we are..

Now we need to solve two problems. :)

[am11]

This is fixed.
Now the line numbers and the error would appear in both error list and output window log.
Also, the preview window will show the complete error log from compiler, while error list and output window will show just the error message text.

[dziedrius]

That was quick, thanks a lot!