diff --git a/spine-unity/Assets/Spine/Editor/spine-unity-editor.asmdef b/spine-unity/Assets/Spine/Editor/spine-unity-editor.asmdef
new file mode 100644
index 000000000..11de6f6aa
--- /dev/null
+++ b/spine-unity/Assets/Spine/Editor/spine-unity-editor.asmdef
@@ -0,0 +1,10 @@
+{
+    "name": "spine-unity-editor",
+    "references": [
+        "spine-unity"
+    ],
+    "optionalUnityReferences": [],
+    "includePlatforms": [],
+    "excludePlatforms": [],
+    "allowUnsafeCode": false
+}
\ No newline at end of file
diff --git a/spine-unity/Assets/Spine/Editor/spine-unity-editor.asmdef.meta b/spine-unity/Assets/Spine/Editor/spine-unity-editor.asmdef.meta
new file mode 100644
index 000000000..ebee9eb68
--- /dev/null
+++ b/spine-unity/Assets/Spine/Editor/spine-unity-editor.asmdef.meta
@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: 173464ddf4cdb6640a4dfa8a9281ad69
+AssemblyDefinitionImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity.asmdef b/spine-unity/Assets/Spine/Runtime/spine-unity.asmdef
new file mode 100644
index 000000000..b364e160d
--- /dev/null
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity.asmdef
@@ -0,0 +1,3 @@
+{
+	"name": "spine-unity"
+}
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity.asmdef.meta b/spine-unity/Assets/Spine/Runtime/spine-unity.asmdef.meta
new file mode 100644
index 000000000..549f3cb73
--- /dev/null
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity.asmdef.meta
@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: 68765d262e2128e4ab49c983f3411946
+AssemblyDefinitionImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: