Undefined symbol errors when building XCode project from Unity (Firebase)

Question

I have just finished creating a game in Unity and a built to Xcode. Once built, I opened a terminal and ran pod install to install firebase packages which generated a workspace file. I then opened the workspace file to try build the project and during the build it resulted in a fail with the following errors:

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Undefined symbol: _Firebase_App_CSharp_Variant_FromDouble

Undefined symbol: _SWIGRegisterExceptionArgumentCallbacks_StorageInternal

Undefined symbol: _Firebase_App_CSharp_Variant_FromInt64

Undefined symbol: _Firebase_Storage_CSharp_MonitorControllerInternal_BytesTransferred_get

Undefined symbol: _Firebase_Auth_CSharp_FirebaseUser_UpdateUserProfile

Undefined symbol: _Firebase_App_CSharp_Variant_double_value

Undefined symbol: _Firebase_App_CSharp_Variant_int64_value

Undefined symbol: _Firebase_App_CSharp_Variant_is_fundamental_type

Undefined symbol: _Firebase_App_CSharp_VariantVariantMap_setitem

Undefined symbol: _Firebase_App_CSharp_Variant_map__SWIG_0

Undefined symbol: _Firebase_App_CSharp_Variant_vector__SWIG_0

Undefined symbol: _Firebase_App_CSharp_Variant_blob_size

Undefined symbol: _Firebase_App_CSharp_Variant_untyped_mutable_blob_data

Undefined symbol: _Firebase_App_CSharp_Variant_EmptyMutableBlob

Undefined symbol: _Firebase_Auth_CSharp_Future_User_GetResult

Undefined symbol: _Firebase_Auth_CSharp_CreateIdTokenListener

Undefined symbol: _Firebase_Auth_CSharp_delete_UserProfile

Undefined symbol: _Firebase_App_CSharp_Variant_EmptyMap

Undefined symbol: _Firebase_App_CSharp_Variant_EmptyVector

Undefined symbol: _Firebase_Storage_CSharp_StorageReferenceInternal_IsValid_get

Undefined symbol: _Firebase_Auth_CSharp_new_UserProfile

Undefined symbol: _Firebase_Auth_CSharp_DestroyIdTokenListener

Undefined symbol: _Firebase_Storage_CSharp_FirebaseStorageInternal_GetReferenceFromUrl__SWIG_0

Undefined symbol: _Firebase_App_CSharp_FixAndroidDependencies

Undefined symbol: _Firebase_App_CSharp_Variant_Null

Undefined symbol: _Firebase_App_CSharp_VariantVariantMap_Add

Undefined symbol: _Firebase_App_CSharp_delete_VariantList

Undefined symbol: _Firebase_App_CSharp_VariantList_getitem

Undefined symbol: _Firebase_Database_CSharp_InternalDatabaseReference_url

Any suggestions?

user_12837380 · Answer

Solved. Check for Firebase plugin, it should be present in your project - earlier it was not there for me.

Unity project should look like this. and this will resolve the issue

Add files under this path "./Assets/Firebase/Editor",follow this link https://github.com/techyworm10/firebase-unity-sdk-editor-python-fix

Undefined symbol errors when building XCode project from Unity (Firebase)

1 Answers