We just tested a project creation with 9.0.2 and it worked. The 'screen' module is generally an issue in older versions, can you please make sure that you really have 9.0.2 installed and it has not been modified by something?
You can write 'electron --version' in the command prompt to check the version you have. The output says v9.0.2 then please send us a test project for further investigation.
Good to hear that you got the correct version working.
If you see an empty window then I assume something went wrong in JavaScript. You already see the default menu, can you check the Developer Tools for any possible errors?
You can access it via View > Toggle Developer Tools.
I can see from this that you are using a trial version of Web Core. At this moment Electron is only supported in the registered version. We'll work on enabling it in the trial version as well.
Yes, for support for Electron 8,9 changes were needed and this impacts the trial version. We're looking to solve this. The full registered version is fine.