Android Question Errors new version installed

[django]

Excuse my absolute in B4A fasting but I realized a little project with version 2.22
it worked great until I not purchased the 5.80 version. Unfortunately
I had the insane idea to open the project with the new version and I found that the code
It was full of error indications that still does not compromise the performance
program. However I decided to return to open the program with the older version
but I can no longer do so because the editor telling me that error loading file The specified key was not in the dictionary
and then I will close everything. I ask if there's a way to bring the project to the previous version
Thank you

 

[DonManfred]

but I can no longer do so because

You should have backupped your project. No matter if you update the ide or not...

I ask if there's a way to bring the project to the previous version

Not really.
Try the following

- Make a full backup of your code
- Remove the meta file
- Open your project in the new ide now.
- Make sure all needed libraries are marked
- Go to the designer an check (and resave) your layouts

Try to compile

 

[Erel]

Which errors do you get in v5.80?

 

[django]

No errors in v5.80 but mistakes in my code that were not in v2.22. However, the program works. For the truth are not errors but warnings
Example: ret = Msgbox2 ("Are you sure you want to delete the month?", "", "Yes", "", "No", Null) says: Undeclared Variable 'ret'.
I should review the entire program to eliminate all warnings for this I wish I could open with the old version. Unfortunately it closes forcibly if I try to reopen it with v2.22.
He says: The specified key was not in the dictionary.
However I repeat the program works.
I apologize for the English and the trivial questions but I am inexperienced.
Thank you
P.S. how to declare ret?

 

[DonManfred]

dim ret as int = MsgBox2(...)

 

[django]

Thank you so much Don Manfred I am silent forever