When adding a Swift Package in Xcode, you may sometimes get stuck at the “Verifying … Preparing to validate” screen.
This usually happens because of a workspace build system setting conflict.

To fix it:

SPM stuck screen.

Steps to Resolve

1. Change Workspace Build System Setting

   • Go to File > Workspace Settings

   • Under Build System, change from Legacy to New Build System (Unique).

2. Update Derived Data Settings

   • Go to Xcode > Settings > Locations

   • Click on Advanced…

   • Change Derived Data location to Unique (instead of Legacy or Shared).

After applying these changes, try adding the Swift Package again — it should validate and install correctly.