diff --git a/studio/src/Volo.Abp.Studio.Domain.Shared/Volo/Abp/Studio/Package/PackageReferenceCompatibility.cs b/studio/src/Volo.Abp.Studio.Domain.Shared/Volo/Abp/Studio/Package/PackageReferenceCompatibility.cs
new file mode 100644
index 0000000000..70c51c36e2
--- /dev/null
+++ b/studio/src/Volo.Abp.Studio.Domain.Shared/Volo/Abp/Studio/Package/PackageReferenceCompatibility.cs
@@ -0,0 +1,13 @@
+namespace Volo.Abp.Studio.Packages.Referencing
+{
+    public enum PackageReferenceCompatibility
+    {
+        Unknown,
+        DDD_Compatible,
+        Compatible,
+        TestProject,
+        IndirectlyReferenced,
+        DirectlyReferenced,
+        CircularReference
+    }
+}