fixes

Assets/DanMachi/Scripts/SpringBone/SpringBone.cs

@@ -0,0 +1,21 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Unity.Animations.SpringBones
+{
+    public class SpringBone : MonoBehaviour
+    {
+        // Start is called before the first frame update
+        void Start()
+        {
+
+        }
+
+        // Update is called once per frame
+        void Update()
+        {
+
+        }
+    }
+}

Assets/DanMachi/Scripts/SpringBone/SpringBone.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: c0f98808b73c1124db3bf2a8a8e54cf6
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/DanMachi/Scripts/SpringBone/com.unity.animations.springbone.asmdef

@@ -0,0 +1,3 @@
+{
+	"name": "com.unity.animations.springbone"
+}

Assets/DanMachi/Scripts/SpringBone/com.unity.animations.springbone.asmdef.meta

@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: cd3f2222600b41b4ead10f1843a97448
+AssemblyDefinitionImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: