Hi @NewcombR ,
Could you please share a bit more about the error when you ugrade?
Do you mean that canvas app in your managed solution set as a managed component?
Currently, if you import an managed solution into a target Environment, you could not edit the components within this managed solution.
Please refer to the following article for more details:
As an fixed solution, please consider remove/uninstall the managed solution from your Test Environment, and then import the updated managed solution into your Test Environment again.
If your solution is still under development, I think you should import your solution as a unmanaged solution rather than managed solution. Then you could continue to add and remove components to this Solution within your Test Environment.
Join us for the next call on August 17, 2022 at 8am PDT.
The first Microsoft-sponsored Power Platform Conference is coming in September. 100+ speakers, 150+ sessions, and what's new and next for Power Platform.