Error "Object reference not set to an instance of an object" keep appearing

[ibnu.alem]

I made my project in the form of flowchart.
so I just need to make new flowchart, provide all the sequence like this and copy all my sequence inside this outer sequence?

[Anil_G (Anil Gorthi)]

@ibnu.alem

First try to right click on any of the sequences and do a step into if it steps in normally then you can copy the inner sequences…else you have to create the sequences also and copy only the activities inside them

cheers

[ibnu.alem]

ok, I just did reinstall my studio to lower version so the problem’s gone.
it will auto update tomorrow so I’m gonna try that tommorrow.

thanks, hope it works

[ibnu.alem]

Hi! Sorry for late update, I found the problem source. I tried to delete the activity I used one by one until the pop up not appearing anymore, turns out it’s from the one and only classic activity I used, it’s “on elemet appear” activity. perhaps this classic activity becoming unsupported anymore since version update coz it’s running fine on the version before update. Cheers!