I'm developing an DSL with jetbrains MPS. It's not obvious to use, but I succeeded so far with the design-part. It's possible to right-click on a solutions node and "run" it, assuming the language is executable (extends executing.util). Plus I use a seperately developed jar as a library (used by the generator).
I build a new project to test, as simple as possible, added some extra nodes and loops in the generator, the error occures and it can't be undone.
As far as I can see, there are several possible sources of errors.
Executing "run" causes the following error:
error: could not find or load main class MySolution.package.map_concept
Has some of you out there experience with this? Tell me, if there are some extra information that would help.
It seems that you have added the jar file as a model to the language, which makes it invisible for the solution. Following the instructions at https://confluence.jetbrains.com/display/MPSD32/Getting+the+dependencies+right#Gettingthedependenciesright-AddingexternalJavaclassesandjarstoaprojectruntimesolutions and creating a separate library solution worked for me.