Steps to reproduce:
1. Create new Unity project
2. Open Package Manager window
3. Install Graph Toolkit package by name (use com.unity.graphtoolkit)
4. Once installed, observe Console window

Actual results: Multiple warnings are thrown in the Console window after package installation
Expected results: No warnings thrown after package installation

Reproducible with versions: 0.4.0-exp.2 (6000.4.0a2 (79bd4f638ac0))
Can’t test with versions: 0.4.0-exp.2 (6000.3.0b6, 6000.4.0a1 (b27b8eafe426))

Tested on (OS): macOS Silicon, Tahoe 26.0 (M1)

Errors:

• Failed to find entry-points:

Mono.Cecil.AssemblyResolutionException: Failed to resolve assembly: 'Unity.GraphToolkit.Editor, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' ---> System.Exception: Failed to resolve assembly 'Unity.GraphToolkit.Editor, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' in directories: /Applications/Unity/Hub/Editor/6000.4.0a2/Unity.app/Contents/Resources/Scripting/MonoBleedingEdge/lib/mono/unityjit-macos
/Applications/Unity/Hub/Editor/6000.4.0a2/Unity.app/Contents/Resources/Scripting/MonoBleedingEdge/lib/mono/unityjit-macos/Facades

• Library/PackageCache/com.unity.graphtoolkit@d558729b58df/InternalBridge/EventCommandNamesBridge.cs(8,35): error CS0122: 'EventCommandNames' is inaccessible due to its protection level
• Library/PackageCache/com.unity.graphtoolkit@d558729b58df/InternalBridge/Editor/ToolShortcutDiscoveryProvider.cs(71,50): error CS0538: 'IDiscoveryShortcutProvider' in explicit interface declaration is not an interface
• Library/PackageCache/com.unity.graphtoolkit@d558729b58df/CommandStateObserver/Commands/CommandHandlerFunctor.cs(13,6): error CS0433: The type 'UnityRestrictedAttribute' exists in both 'Unity.GraphToolkit.UnityRestricted, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' and 'UnityEditor.GraphToolkitModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null'