I get no error in “Build Verse Code”, but in “Launch Session” I get an error and cannot start the session.
The error message is “Script error 3542: Missing return type for function”.
However, the line in Verse is not a function, but a Constructor definition, and Constructors should not need a return type.
Also, the path shown in the error message is /sys/published/… which seems to indicate that the error is for a published file, not a file that is local to the server. The same error occurs when I delete a function or file from a local file.
“Unable to Play, Validation failed” dialog appears and the “Verse Build” entry in the “Message Log” window displays the following error.
…/Plugins/ProjectName/sys/published/Content/filename.verse(290,23, 290,55) : Script error 3542: Missing return type for function.
8865-1915-0180
I did the following steps and now Launch Session is available.
Change “Constructor” to “function” → No change
Delete the file and copy the contents to an alias file → No change
Check in RevisionControl for backup.
Sync from RevisionControl to the previous Snapshot → No change
Revert to the latest Snapshot → Verse file that was supposed to be deleted is still there. Error because the contents are duplicated.
Right-click on the file from Verse Explorer>Revert → It works!
But this time, when publishing the island on the Creator Portal, the same error message appeared and I could not press the publish button.
I need Epic’s support. Please help.
There seemed to be an error in the Verse Persistence Data compatibility check, so I reverted the active version back to before save support and republished it, and was able to publish without the error.
However, I believe that the root cause is a problem with the Verse compiler, which generates incorrect errors for Constructor, so please investigate and correct the problem to prevent the same problem from occurring in the future.
