NChart3D v3.2 for iOS and NGrid v1.3 frameworks are moved to the new format: xcframework. This is a more convenient way for adding external libraries to your project, making it compatible with all the modern devices, including iPhones, iPads, and Macs (via Catalyst).

The migration is simple:

1. Remove the old versions of the framework:

   sudo rm -rf /Applications/Xcode.app/Contents/Developer/Library/Frameworks/NChart3D.framework
   sudo rm -rf /Applications/Xcode.app/Contents/Developer/Library/Frameworks/NGrid.framework

   Please, be careful executing these commands since they are about to delete some system files! You'd better copy and paste them into the terminal to avoid typos.
2. Remove the links to the NChart3D.framework and NGrid.framework from your project.
3. Download the update from https://nchart3d.com/download, open the DMG and drag the *.xcframework file from the Finder to your project's tree in Xcode, into the group Frameworks (or anywhere else in your project's tree). It should appear as a blue folder after you drop it:
   
4. Make a clean+build of your project.
5. Enjoy NChart3D and NGrid in your projects across all the modern devices :)