Likely that you use a VM that does not have the Cairo library. Can you try updating your VM?

Cheers

Alexandre 

In a clean Pharo 6.1 (Windows 8) I loaded Roassal2 with the following
spec in a baseline:

           spec
               project: 'Roassal2'
               with: [
                   spec
                       className: #ConfigurationOfRoassal2;
                       versionString: #stable;
                       repository:
'http://www.smalltalkhub.com/mc/ObjectProfile/Roassal2' ].

But many Trachel tests fails because of "External module not found"
error (Screenshots attached).
May be Roassal2 is broken on Windows?

I tried loading Roassal2 from the Catalog browser and the same 137 tests fails.

Any idea what could be missing?

Cheers,

Hernán

<Test Runner.png>

<Error - External module not found.png>