Why is the preview of the grammar (ctrl+alt+p) not working with your grammar?
The example from that webpage https://github.com/JetBrains/Grammar-Kit/blob/master/TUTORIAL.md is working correctly but your grammar doesn't match the content of the property file. Is there something mirical work in the background. The sample works if i start the sandbox.
If you just want to develop a plugin, there is no need to make it working at this step. Because some token like COMMENT, CRLF will be defined in Flex file.
When I do this the classes will be generated inside the src folder instead of gen. I had already tried this tutorial a few days ago with IntelliJ 13 and there it worked without a problem. Is this the new expected behavior in IntelliJ 14 or might there be an issue with the Grammar Kit plugin?