[console error] unexpected javascript error from running app #3408
Description
DartPad displayed an unexpected error in the console:
Uncaught Library package:dartpad_sample/main.dart was previously defined but DDC is not currently executing a hot reload or a hot restart. Failed to define the library., error: Library package:dartpad_sample/main.dart was previously defined but DDC is not currently executing a hot reload or a hot restart. Failed to define the library.