Is quick documentation popup working with Scaladoc?

Could you provide idea log please?

Sure, added.
Sorry for the delay. I did not receive notification about your reply.

Checked IDEA 15 EAP, does not work too.

Sorry, I missed the forum notification

Looks like log doesn't contain anything related. Do you have the issue in a one particular project or in all projects? Is it sbt project(s)? Does the issue appear only in source code of libraries or in project source code as well?

They are SBT projects. Quick Doc does not work at all including libs and my code.

Does it work when invoked with caret at the comment itself? (like http://puu.sh/jFHxK/7fcfdcac85.png )

No, but I am even unable to open popup.
Additionaly, I get an error (15 EAP) for both cases (popup from method name and from comment):

file=ScalaFile:indexMember.scala.html; tree=Element(SCALA_DATA)

I reported that erorr multiple times e.g. error report 906984

Is your project open-source?

Nope. It's big multimodule SBT project, sbt 0.13.5, Scala 2.11.5

I created also new sbt project and it works well.
I checked also mine https://github.com/leszekgruchala/scala-fast-track and works too.

So it must be something related to my project only.

According to the error you mentioned, the issue might be related to bad index, I have such reports, but I can't reproduce index problem for now. Also you said you had checked idea 15 eap, is it the latest eap (142.3926) ?

Yes, it's 142.3926.4. But the problem exists in that project also on 14.1.4.

How can I send you more information?
How can I rebuild index? (Invalidate caches?)

When I started IDEA 15 at first time, everything was indexed from scratch.

I am also seeing this issue in 14.1.4 with scala 2.10.5 and sbt 0.13.9. Unfortunately, I cannot share my project either, only show evidence and try to answer any questions you have. My intellij log shows nothing when I show quick docs. When I look in the project structure, it has correctly pulled in the sources and javadocs for all my dependencies. Even classes and methods in my own project that I have commented do not show any documentation when I show quick docs where those resources are used.

The issue is in the plugin, so I beleive invalidating caches won't help. I will add some stuff for diagnostics, but it won't get to the plugin until next EAP (i.e. tuesday)

FYI The problem remains with Scala plugin 1.8.0 and EAP build 142.4083.2.

The eap is delayed because of the idea platform eap (they are released at the same time). It will be released tonight or tomorrow morning. To enable logging please add following to the bin/log.xml in IDEA install dir (under log4j:configuration root) :

  <category name="#org.jetbrains.plugins.scala.editor.documentationProvider">

      <priority value="DEBUG"/>

  </category>

    <category name="#com.intellij.lang.documentation">

           <priority value="DEBUG"/>

  </category>

    <category name="#com.intellij.codeInsight.documentation">

            <priority value="DEBUG"/>

  </category>

Sorry for the delay, but I was on vacation :)

Log attached.

Scala plugin 1.8.2
Idea 142.4245.2

Late question, but I'd better ask anyway - don't you have this setting enabled? http://puu.sh/jVe5Y/e2ac74dc3e.png

This was a setting I did not know about...my documentation now shows up!

Yes, stupid me. Sorry for losing your time.

But I have a suggestion. I thought this setting disables validation of the comment, not its generation.

I just discovered this thread after posting what I think is the same issue (?) in the main 'IDEA users' section (sorry - it almost certainly should have been here).  My case occurs with a basic Hello-world illustration which requires no complex project.  I also see a null ref execption in the log which looks relevant.  See https://devnet.jetbrains.com/message/5557945#5557945

@Dmitry - Can you name this setting?  The image link you posted no longer works.

@Jason - the setting is named "Disable parsing of documentation comments".It must be turned off.