Hi please this morning I’m unable to run any of my projects as i get an error saying that the ‘'pc.app’ is not exist ‘null’,
can i get your help fixing this, and thank you in advance!
That sounds more like a project specific problem. Can you post the project here or a public reproducible version please?
Have you tried opening any other projects (eg PlayCanvas tutorials) to see if you have the same issue?
Hi @yaustar ,
i got weird error when i try to open any of my projects this morning, simply ‘pc.app’ object is no longer exist
1 Like
I’ve just tried my own projects and the PlayCanvas tutorial projects, and they all load fine in Editor and launch tab.
@KPal for visibility
Does it happen if you create a new project?
Can you try and use the older engine in the Editor Settings to see if that makes a difference too.
Hi thank you for your response,
please create a new project and select ‘WebXR AR Starter Kit’, then try to launch the project, you will get an error saying that ‘Cannot read properties of null’ as the system couldn’t find the ‘mouse’ object, but the main problem is the root object ‘pc.app’ doesn’t exist in the first place,.
this happen to both existing and new projects.
Aha okay, actually it’s now working fine after i choose the older engine ‘2.18.2’, thank you for your help : )
Ok, I’ll investigate to see what the problem is, thanks for the repro.
see the ticket for this here: pc.app - is not available. Breaking projects. · Issue #8836 · playcanvas/engine · GitHub
Great, Thank you @mvaligursky !
Fix is something out shortly, its on the way now.
Hi this fix is live now please confirm if it is fixed for you 
Thanks!
Yes now everything working perfectly on the new engine 2.19.3, thank you for your support : )