I'm a beginner to MPS and currently trying to use it for a DSL that I'm developing for my current project. After watching the "Constants" screencast I've tried my first steps in MPS and encounter the following issue:
Whenever I try to use Styles in a RefNodeList (I'm trying to layout the child nodes vertically and indented) I get the following error:
textgen error: 'class name is NULL' in [type] ClassifierType <no name> in StreamDSL.editor@7_1 (right-click to see exception)
As a beginner I've a hard time to make sense of that error. So here are my two questions:
1) How to interprete the error message?
2) How to create a vertical and indented child list?
Since I'm a beginner I want to check if I'm using it right before submitting an issue. I'm using build 117.9406 (MPS 2.5 downloaded from the website).
Thanks a lot,