Apps Unable to create a new activity

[springrose]

When I tried to add a new activity in a dummy new Android application, it was fine. However when I tried to add a new activity for this specific project, there was a red error pop up on the right corner (not showing up in attachment, don't know why) when I clicked nothing happened. I clicked at the bottom left where its saying IllegalStateException but nothing happened either. I clicked everywhere and nothing happened, I couldn't even hit Cancel or the X button to close. How do I find out what the error was? I basically have to End Task just to get out of this screen, and it is puzzling.

 

[Deleted User]

Unusual. What did the popup dialog say?
Is there any error message in the Gradle console, or Logcat views?

 

[GodLovesYou]

Try to clean, rebuild and build

 

[springrose]

Unusual. What did the popup dialog say?
Is there any error message in the Gradle console, or Logcat views?

Got another screenshot with the red popup on the side. I can't click into the Gradle console, or Logcat. Like I said earlier, clicking anywhere yields nothing. The only way was to open Task manager and End the process, which to me is super ugly.

 

[springrose]

Try to clean, rebuild and build

did that, still same error.