Bugger, the LESS processing failed

[Matt Raible]

I'm trying to use the Less module so I can leverage Twitter's Bootstrap in my project. I know I don't need Less, but I figured I'd try it anyway. When I use versions 0.2 or 0.3, I get the following error:

Bugger, the LESS processing failed:,
java.lang.NullPointerException
at com.asual.lesscss.LessEngine.parseLessException(LessEngine.java:163)
at com.asual.lesscss.LessEngine.compile(LessEngine.java:104)
at play.modules.less.PlayLessEngine.compile(PlayLessEngine.java:94)
at play.modules.less.PlayLessEngine.get(PlayLessEngine.java:43)
at play.modules.less.Plugin.handleOk(Plugin.java:64)
at play.modules.less.Plugin.handleResponse(Plugin.java:49)
at play.modules.less.Plugin.serveStatic(Plugin.java:31)
at play.plugins.PluginCollection.serveStatic(PluginCollection.java:584)
at play.server.PlayHandler.serveStatic(PlayHandler.java:765)
at play.server.PlayHandler$NettyInvocation.init(PlayHandler.java:179)
at play.Invoker$Invocation.run(Invoker.java:263)
at play.server.PlayHandler$NettyInvocation.run(PlayHandler.java:200)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:206)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:680)

I also have the CoffeeScript module installed in my Play 1.2.3 project. Don't know if that makes a difference or not.

Thanks,

Matt

[Matt Raible]

This happens with the GreenScript plugin as well. If I use a
simpler .less file, it works. So I'm guessing there's something
different b/w Twitter's Less authoring and the compilers that Play
modules use.

Is there source code available for the less module? I'd like to see if
I can add more information to compilation errors, like line numbers
and such.

On Oct 9, 1:32 pm, Matt Raible <mrai...@gmail.com> wrote:
> I'm trying to use theLessmodule so I can leverage Twitter's Bootstrap in my project. I know I don't needLess, but I figured I'd try it anyway. When I use versions 0.2 or 0.3, I get the following error:
>
> Bugger, theLESSprocessing failed:,

[scott clasen]

Ive seen this if you try and hit a .less page directly first, without hitting a play view, some buggyness with init order i guess.

Try hitting a view, then your less, if in fact you were just hitting the .less directly first

[green]

should be caused by the rhino engine version problem. Can you send out your dependencies.yml file and all the jar files in your app lib folder?

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[Erik Bakker]

> I also have the CoffeeScript module installed in my Play 1.2.3 project.
> Don't know if that makes a difference or not.

Yes, the Rhino engine in the Less module is incompatible with the Rhino
engine in the coffeescript module. You can install less module 0.3-compat
to resolve this. See the docs for more info :)

Regards,

Erik

[Matt Raible]

I saw the 0.3.compatiblity link, but didn't understand that was a version number. ;-)

Changing my dependencies.yml from:

- play -> less 0.3

To:

- play -> less 0.3.compatibility

Allows me to use Twitter's bootstrap.less in my project.

Thanks!

[hyder]

I'm not sure I understand this. Can you elaborate a little bit please? 

[scott clasen]

When testing out less processing in play I have seen it blow up if I start the play app and hit http://localhost:localport/some/file.less   without visiting any other url.

If I hit a regular play view first, and then hit http://localhost:localport/some/file.less everything works fine.

[hyder]

Got it.

Thank you,

Ali