Umbrella header 'CorePlot.h' not found

[sprout-apps]

Today my project stopped building due to the following error:

core-plot/framework/Module/module.modulemap:2:19: Umbrella header 'CorePlot.h' not found

MacOS: 13.2.1 (22D68)
Xcode: Version 14.3 (14E222b)

[eskroch]

How are you integrating Core Plot into your app? CocoaPods? Building from source from GitHub? Make sure you're using the latest code from the release-2.4 branch.

[sprout-apps]

Yes, l'm using the latest release-2.4 branch and building from source. core-plot has been integrated into our projects for close to 10 years. Both are mixed projects with Objective-C and Swift and both are failing to build with the same error.

[sprout-apps]

I was wondering if there was any update on this issue? Without the fix we are not able to make any development or production builds as our apps are heavily dependent on core-plot.

[eskroch]

I suspect there's a project setting in your app that conflicts with recent updates to Core Plot done to fix various issues with the module interface.

Is there a way you could share your project or a stripped-down version with similar settings to help troubleshoot?

[sprout-apps]

Unfortunately, I can't share the project code at this time. However, I do have more information. The last build that works is e0b8dd1. Here is some additional info from our developer:

"After that build there are various issues: with module verifier error; with double quoted includes error; and last one with a module map error."

He also believes that creating an empty project in Xcode with iOS app and importing core-plot source code directly into it would produce this error. I haven't tried it yet.

[myoung959]

Same problem here. I've been rebuilding all my apps that use CorePlot with the release-2.4 branch. Three worked fine, but the fourth fails and fails, even after rebuilding from scratch always with 'CorePlot.h" not found in file xxx.m even though #import "CorePlot.h" is in file xxx.h.

[myoung959]

Yes, I'll be happy to send you my source code.

[eskroch]

Yes, I'll be happy to send you my source code.

My email address is listed in my profile. Thanks!

[eskroch]

I believe the build problems have been resolved on the release-2.4 branch. Please let me know if you're still seeing any issues.

[sprout-apps]

Thanks for making the changes. I just tested and unfortunately I'm still seeing the same issue:

Umbrella header 'CorePlot.h' not found
Could not build Objective-C module 'CorePlot'

[eskroch]

Does the error occur when building Core Plot by itself or just when building your app?

[sprout-apps]

No, I can build Core Plot by itself, so only when building the app. It's a mix of Objective-C and Swift.

[eskroch]

That sounds like an issue with the build configuration of your app. The Mac CPTTestApp example app (Objective-C) uses module references and two of the example apps (DatePlot and the iPhone CPTTestApp) are written in Swift. Pull the latest code from the release-2.4 branch and see if you can build those apps.

Take a look at the CorePlot framework in your build folder. The Headers folder inside the framework should contain 68 files, including CorePlot.h and 67 with filenames beginning with CPT*.

[sprout-apps]

Unfortunately we are facing a deadline and I can't dedicate the time to follow your suggestions. For now we will continue to build using the last version that works: e0b8dd1. I'll try debugging on my end after our release.