Xcode10 random popup "The bundle identifier for XCode10Project.app couldn’t be read."

Question

I've created a project in XCode10 Beta6. I closed the project and opened another project from XCode 9.2 At random points throughout working on another project, I get alert popup saying.

How do I resolve "The bundle identifier for XCode10Project.app couldn’t be read." issue with XCode10 Beta 6?

the popup appears every time after I test my xcode 9.2 project

Glovsky

I've seen this and I can't remember how I fixed it. Basically I'd suggest this: https://mcmap.net/q/16662/-how-to-empty-caches-and-clean-all-targets-xcode-4-and-later – Trichiasis

Answer 1

The solution is to delete derived data and clean project, as described here: How to Empty Caches and Clean All Targets Xcode 4 and later

Deleting the offending project from disk will not fix it.

Glovsky

Now that Xcode 10 is out of beta, this is more of a workaround than a solution.. Looking for the cause still – Hydra

I added a UI Test Target and while running Test target I was facing a similar issue. clear derived data solves my issue. – Verwoerd