You cannot implement a nonexistent event

On an iMac running Mac OS X 10.13.6, I’m trying to install Xojo 2019r3.1.
When lauching it and opening an existing project or creating a new one, analyzing the project leads to this message:

[quote]An error has occurred while compiling this project.
You cannot implement a nonexistent event.
File: Frame
Location: HTMLViewer.Action
Code: Action(Item[/quote]

And I get 8 errors in HTMLViewer.Super, POP3SecureSocket.Super, HTTPSecureSocket.Super and SMTPSecureSocket.Super (2 errors each).
I have no external plugins but the ones delivered by Xojo.

This behaviour does not appear with Xojo 2019r1.1.

Any idea?
Thanks a lot for any help.


you must have mixed api1 and api2 in the same method, certainly.

even in api1 htmlviewer doesnt have an action event

Hey Daktari (private joke)

Jean-Yves, Norman,

Thanks for replying.
No mix, given that analyzing an empty project, I get the same message. In addition, analyzing a project with NO HTMLViewver nor POP3-, HTTP and SMTPSecureSocket objects, I get it, too.

Should I ask for an exorcism?

would seem your installs are messed up somehow

almost like you have frameworks from two versions mixed together