Bug. getting error "TypeError: Cannot read property 'plugin' of undefined"

[lynxieles]

When I try to compile a game to test some of the new features I'm getting an error that prevents it from finishing.
I cannot find any source of the issue and I'm unsure what to look for.
I have copied the code where it fails.

Preparing variables...
Preparing strings...
Preparing images...
Preparing ui...
Preparing sprites...
TypeError: Cannot read property 'plugin' of undefined

Warnings:

• TypeError: Cannot read property 'plugin' of undefined

Edit: updating with the tracker template
SCP.zip

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem:
open a project I made in the 1.2.1 version in beta 2.0.
does not occur with a new project made in 2.0.
What is the expected behavior?
No error while building the project.

What is the motivation / use case for changing the behavior?
Being able to run my project

Please tell us about your environment:
Mac catalina version 10.15.4
GB Studio Beta 2.0

Other information (e.g. detailed explanation, stacktraces, related issues, suggestions how to fix, links for us to have context, eg. stackoverflow, gitter, etc)
I have attached the project file for RichardULZ. I will likely remove it at a later date.

[RichardULZ]

Are you compiling an old game or a new template?

Please follow the issue tracker template by including the version being used and operating system with all issue posts.

[bigjawed]

I get the same error when i eject the engine then delete the engine folder. (im using the 64 bit version.)

[bigjawed]

i do notice that "main.c" disappears after you eject it again.

[noje999]

I've also been getting this error on the 2.0.0 Beta, on MacOS Mojave (10.14.6) whenever I click the play button to test my build. In my case It's an old game that I migrated to the new beta, if that affects anything at all.

[RichardULZ]

Perhaps the project previously used plugins for an event, and something related to that plugin changed, or it's not liking plugins at all.
One common plugin may have been the menu event, but without character limits for safety.

If anyone is able to provide a project zip that reproduces this issue, that would be very helpful.

[bigjawed]

The best thing you could do is load your backup by deleting the .gbsproj and renaming your backup file name to .gbsproj

[lynxieles]

I have updated the issue with a bit more detail and uploaded a project zip as requested by RichardULZ.

[pau-tomas]

The issue is that the player spritesheet isn't assigned in the World Editor. Selecting the right sheet should make things work again.

I still don't know why this happened, @lynxieles could you upload the 1.2 version of your project to be able to compare it with the 2.0? Thanks!

[lynxieles]

I'm not sure myself. It got wonky after I accidentally deleted a file I think. I thought I fixed the sprite sheet issue in the previous version but I must have missed one. That totally fixed it. here's the old one if you want to look at it. thank you so much for the help.
SCP.zip

[pau-tomas]

Interesting, the 1.2 project didn't have a Sprite Sheet selected for the Player but it was compiling fine (and, I guess, just selecting an arbitrary sheet? 🤷 ). I don't think we should support that case, but instead add a more clear warning to the compiler:

[lynxieles]

Honestly in the old version I'd just manually set the sprite sheet myself so I really never noticed. I'm glad my mess up could help other people too.