Scaladoc diagrams - scala

Question

Is it possible to generate diagrams with Scaladoc and SBT?
I tried to add this line in my build.sbt:
scalacOptions in (Compile,doc) := Seq("-diagrams", "-diagrams-debug")
But I receive:
Diagram generation running time breakdown:
diagrams model filtering
========================
count: 242 items
total time: 0 ms
average time: 0 ms
maximum time: 0 ms
diagrams model generation
=========================
count: 242 items
total time: 45 ms
average time: 0 ms
maximum time: 11 ms
dot diagram generation
======================
count: 89 items
total time: 24 ms
average time: 0 ms
maximum time: 3 ms
dot process runnning
====================
count: 89 items
total time: 590 ms
average time: 6 ms
maximum time: 512 ms
svg processing
==============
count: 89 items
total time: 269 ms
average time: 3 ms
maximum time: 88 ms
Broken images: 238
Fixed images: 0
How can I get more logs about the "Broken images"?
Thanks.
EDIT:
The command last shows me:
[debug] Calling Scaladoc with arguments:
[debug] -diagrams
[debug] -diagrams-debug
[debug] -d
[debug] /.../target/scala-2.10/api
[debug] -bootclasspath
[debug] /usr/lib/jvm/java-7-openjdk/jre/lib/resources.jar:/usr/lib/jvm/java-7-openjdk/jre/lib/rt.jar:/usr/lib/jvm/java-7-openjdk/jre/lib/sunrsasign.jar:/usr/lib/jvm/java-7-openjdk/jre/lib/jsse.jar:/usr/lib/jvm/java-7-openjdk/jre/lib/jce.jar:/usr/lib/jvm/java-7-openjdk/jre/lib/charsets.jar:/usr/lib/jvm/java-7-openjdk/jre/lib/rhino.jar:/usr/lib/jvm/java-7-openjdk/jre/lib/jfr.jar:/usr/lib/jvm/java-7-openjdk/jre/classes:/home/thibaud/.sbt/boot/scala-2.10.4/lib/scala-library.jar
[debug] -classpath
... my classpath and my classes
[info] Main Scala API documentation successful.
[success] Total time: 18 s, completed 23 oct. 2015 15:10:32

Answer 1

Is it possible to generate diagrams with Scaladoc and SBT?
Since this is one of more highly voted questions tagged sbt, I'll try to answer it. I tried using Scala 2.11.8 and 2.12.0-M4, but neither worked for me. There are some problems with Scaladoc diagram generation itself, not sbt. See for example SI-7950: Running ScalaDoc with -diagram fails on OS X 10.9 (Mavericks). I also tried running scaladoc directly, and I still get the similar error messages.
One theory I've heard is that scaladoc is too sensitive to dot warning messages. So there's been a hack of wrapping dot with the following:
#!/bin/bash
/usr/local/bin/dot "$#" 2> >( grep -v "CoreText performance note:" >&2 )
Using the above script did not work for me. So likely it's not possible at this time.