In one of my projects, all of the Xcode 10 betas (up through beta 6) generate warnings saying "missing creator for mutated node". I believe I tracked the warning down to the Core Data model code generator.
Here's the basic set up:
- iOS app is set up as a workspace using the "new" build system
- Workspace contains an independent Xcode project with two targets (static library, resource bundle)
- Static library includes a Core Data model file (no code generation)
- Resource bundle compiles the Core Data model file and makes the compiled model available to the "resource" `NSBundle` at runtime
- When building, a warning is generated stating "missing creator for mutated node"
I can get the warning to go away using one of these workarounds:
Workaround #1
Add a "dummy" entity to the Core Data model that allows code generation, the warning goes away.
Workaround #2:
Use the "old" build system
Has anyone else seen the "missing creator for mutated node" warning?