Eclipse often cannot find import even when there

[Markus Jais]

Hello,

I am using the latest Eclipse Plugin for Scala and the latest Eclipse 3.7 version.

Very often Eclipse cannot find the imports from a package even when the classes/traits, etc are there.

For example I just checked out the async project:

https://github.com/scala/async

I did 

$sbt clean compile eclipse

and everything was find.

When I open it some files show errors, for example the ExprBuilder class has many errors and Eclipse cannot 

find the import "TransformUtils" although they are in the same directory and package.

TransformUtils itself has no errors.

This happens quite often with most of the open source projects I check out from github.

Am I doing something wrong?

Regards,

Markus