Creating Buttons - Getting error upon save

[pgiesenhagen]

When I do my final "DONE" in the Button Controllers app I get the following on screen error:

Unexpected Error

An unexpected error has occurred trying to load the app. Check Logs for more information.

Error: No signature of method: java.lang.String.call() is applicable for argument types: (java.util.HashMap) values: [[p:3]] Possible solutions: wait(), any(), wait(long), each(groovy.lang.Closure), any(groovy.lang.Closure), take(int)

When I click the "check logs" link it breaks to a 404 error (fyi).

Went into logs this is all it says:

2018-11-30 10:27:25.320 am errorgroovy.lang.MissingMethodException: No signature of method: java.lang.String.call() is applicable for argument types: (java.util.HashMap) values: [[p:3]] Possible solutions: wait(), any(), wait(long), each(groovy.lang.Closure), any(groovy.lang.Closure), take(int) (mainPage)

[ablack-utility]

Same here -- since the latest update. It doesn't seem to affect the creation though, the button controller is still created and seems to work fine.

And yes, the logs button on the error page has a typo in the URL with extra quotes....

Some screenshots for those interested:

[Ryan780]

@bravenel is aware.

Error Saving Button Controller

I get the following error when saving a button controller app since the latest update: Error: No signature of method: java.lang.String.call() is applicable for argument types: (java.util.HashMap) values: [[p:2]] Possible solutions: wait(), any(), wait(long), each(groovy.lang.Closure), any(groovy.lang.Closure), take(int) It does save the app when I go back into it, it is configured correctly.