【Unity】Unity 打包 iOS 工程常见错误汇总（Undefined symbols for architecture armv7:）

Undefined symbols for architecture armv7:
  "_ObjectPool_1_get_countActive_m2082506317_gshared", referenced from:
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ObjectPool_1_get_countInactive_m19645682_gshared", referenced from:
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1_U3Cs_ListPoolU3Em__14_m3908991543_gshared", referenced from:
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1_U3Cs_ListPoolU3Em__14_m1915587246_gshared", referenced from:
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ObjectPool_1_get_countAll_m3327915100_gshared", referenced from:
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1__cctor_m2225857654_gshared", referenced from:
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1_U3Cs_ListPoolU3Em__14_m2195937135_gshared", referenced from:
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1__cctor_m3567944713_gshared", referenced from:
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1_Get_m1848305276_gshared", referenced from:
      _VertexHelper__ctor_m3006260889 in Bulk_UnityEngine.UI_1.o
      _VertexHelper__ctor_m4240166773 in Bulk_UnityEngine.UI_1.o
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1_U3Cs_ListPoolU3Em__14_m4228322977_gshared", referenced from:
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1__cctor_m3826110151_gshared", referenced from:
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ObjectPool_1_Release_m1110976910_gshared", referenced from:
      _LayoutRebuilder_ForceRebuildLayoutImmediate_m3701079759 in Bulk_UnityEngine.UI_0.o
      _LayoutRebuilder_MarkLayoutRootForRebuild_m1708966351 in Bulk_UnityEngine.UI_0.o
      _LayoutRebuilder_LayoutComplete_m182540522 in Bulk_UnityEngine.UI_0.o
      _ExecuteEvents_CanHandleEvent_TisIl2CppObject_m2627025177_gshared in GenericMethods0.o
      _ExecuteEvents_Execute_TisIl2CppObject_m1533897725_gshared in GenericMethods0.o
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1__cctor_m3740250016_gshared", referenced from:
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1_Release_m1142705876_gshared", referenced from:
      _VertexHelper_Dispose_m2696974486 in Bulk_UnityEngine.UI_1.o
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1_Release_m3969187617_gshared", referenced from:
      _VertexHelper_Dispose_m2696974486 in Bulk_UnityEngine.UI_1.o
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1_Release_m2709067242_gshared", referenced from:
      _Outline_ModifyMesh_m4125422123 in Bulk_UnityEngine.UI_1.o
      _Shadow_ModifyMesh_m111179421 in Bulk_UnityEngine.UI_1.o
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ObjectPool_1_Get_m3052664832_gshared", referenced from:
      _LayoutRebuilder_ForceRebuildLayoutImmediate_m3701079759 in Bulk_UnityEngine.UI_0.o
      _LayoutRebuilder_MarkLayoutRootForRebuild_m1708966351 in Bulk_UnityEngine.UI_0.o
      _ExecuteEvents_CanHandleEvent_TisIl2CppObject_m2627025177_gshared in GenericMethods0.o
      _ExecuteEvents_Execute_TisIl2CppObject_m1533897725_gshared in GenericMethods0.o
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1_U3Cs_ListPoolU3Em__14_m2476287024_gshared", referenced from:
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1_Get_m3130095824_gshared", referenced from:
      _Outline_ModifyMesh_m4125422123 in Bulk_UnityEngine.UI_1.o
      _Shadow_ModifyMesh_m111179421 in Bulk_UnityEngine.UI_1.o
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ObjectPool_1_set_countAll_m2125882937_gshared", referenced from:
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1_Get_m2459207115_gshared", referenced from:
      _VertexHelper__ctor_m3006260889 in Bulk_UnityEngine.UI_1.o
      _VertexHelper__ctor_m4240166773 in Bulk_UnityEngine.UI_1.o
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1_Get_m1779148745_gshared", referenced from:
      _VertexHelper__ctor_m3006260889 in Bulk_UnityEngine.UI_1.o
      _VertexHelper__ctor_m4240166773 in Bulk_UnityEngine.UI_1.o
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1_Get_m4266661578_gshared", referenced from:
      _VertexHelper__ctor_m3006260889 in Bulk_UnityEngine.UI_1.o
      _VertexHelper__ctor_m4240166773 in Bulk_UnityEngine.UI_1.o
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1__cctor_m3697027432_gshared", referenced from:
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1_Release_m3961428258_gshared", referenced from:
      _VertexHelper_Dispose_m2696974486 in Bulk_UnityEngine.UI_1.o
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ListPool_1_Release_m3953668899_gshared", referenced from:
      _VertexHelper_Dispose_m2696974486 in Bulk_UnityEngine.UI_1.o
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
  "_ObjectPool_1__ctor_m2532712771_gshared", referenced from:
      _LayoutRebuilder__cctor_m1146736720 in Bulk_UnityEngine.UI_0.o
      _ExecuteEvents__cctor_m2728541814 in Bulk_UnityEngine.UI_0.o
      _g_Il2CppGenericMethodPointers in Il2CppGenericMethodPointerTable.o
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)

• 1、遇到这种错误，一种情况是 Unity 里面有 Class 继承于 MonoBehaviour 导致的。 删除或者更换其他方式即可解决。
• 2、第二种情况是使用枚举作为 Dictionary 的 Value： 其中 Dynamictype 是一个枚举类型
  [注]：这种情况最可能出现在后续更新只替换 Native 文件和 Data 文件时所引起。

public Dictionary<int, Dynamictype> _anitype = new Dictionary<int, Dynamictype>();

• 3、iOS可以通过从Xcode上删除整体Native文件（Move to Trash），然后把新Native拷贝到原来目录下，在Xcode中在Add Files to ..... 中可以解决此问题。

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