Build error due to undefined symbol: RectTransfore_get_sizeDelta

Two errors. I don’t know what caused them. Clean build, reinstalling Unity, creating a new project, restarting the computer don’t help.

1:

Building Library\Bee\artifacts\Android\iz17e\libil2cpp.so failed with output:
ld.lld: error: undefined symbol: RectTransfore_get_sizeDelta_m822A8493F2035677384F1540A2E9E5ACE63010BB
>>> referenced by UnityEngine.UI__2.cpp:6455 (D:/projects/Rocket jump/Library/Bee/artifacts/Android/il2cppOutput/cpp\UnityEngine.UI__2.cpp:6455)
>>>               Library/Bee/artifacts/Android/iz17e/094f6dqyyokv.o:(Scrollbar_UpdateDrag_mD7B02B0A326AF4BB20B66423F3EAEC8FD4BCC787)
>>> did you mean: RectTransform_get_sizeDelta_m822A8493F2035677384F1540A2E9E5ACE63010BB
>>> defined in: Library/Bee/artifacts/Android/iz17e/g0cfzukc359x.o
clang++: error: linker command failed with exit code 1 (use -v to see invocation)

0x00007ff7b81c229d (Unity) StackWalker::GetCurrentCallstack
0x00007ff7b81c7249 (Unity) StackWalker::ShowCallstack
0x00007ff7b91933a1 (Unity) GetStacktrace
0x00007ff7b9854c02 (Unity) DebugStringToFile
0x00007ff7b70d8736 (Unity) DebugLogHandler_CUSTOM_Internal_Log
0x00000230218df9c3 (Mono JIT Code) (wrapper managed-to-native) UnityEngine.DebugLogHandler:Internal_Log (UnityEngine.LogType,UnityEngine.LogOption,string,UnityEngine.Object)
0x00000230218df79b (Mono JIT Code) UnityEngine.DebugLogHandler:LogFormat (UnityEngine.LogType,UnityEngine.Object,string,object[])
0x00000230218df390 (Mono JIT Code) UnityEngine.Logger:Log (UnityEngine.LogType,object)
0x000002302e1d2225 (Mono JIT Code) UnityEngine.Debug:LogError (object)
0x000002302e1d1e8b (Mono JIT Code) UnityEditor.Modules.BeeBuildPostprocessor:DefaultResultProcessor (Bee.BinLog.NodeFinishedMessage,bool,bool)
0x000002302e1d14eb (Mono JIT Code) UnityEditor.Modules.BeeBuildPostprocessor:ReportBuildResults ()
0x000002302df6dfc3 (Mono JIT Code) UnityEditor.Modules.BeeBuildPostprocessor:PostProcess (UnityEditor.Modules.BuildPostProcessArgs)
0x000002302df6d59b (Mono JIT Code) UnityEditor.Modules.DefaultBuildPostprocessor:PostProcess (UnityEditor.Modules.BuildPostProcessArgs,UnityEditor.BuildProperties&)
0x000002302df6b14b (Mono JIT Code) UnityEditor.Android.AndroidBuildPostprocessor:PostProcess (UnityEditor.Modules.BuildPostProcessArgs,UnityEditor.BuildProperties&)
0x000002302df6a8d1 (Mono JIT Code) UnityEditor.PostprocessBuildPlayer:Postprocess (UnityEditor.BuildTargetGroup,UnityEditor.BuildTarget,int,string,string,string,int,int,UnityEditor.BuildOptions,UnityEditor.RuntimeClassRegistry,UnityEditor.Build.Reporting.BuildReport)
0x000002302df6ac45 (Mono JIT Code) (wrapper runtime-invoke) <Module>:runtime_invoke_void_int_int_int_object_object_object_int_int_int_object_object (object,intptr,intptr,intptr)
0x00007ffa96b3e0d4 (mono-2.0-bdwgc) mono_jit_runtime_invoke (at C:/build/output/Unity-Technologies/mono/mono/mini/mini-runtime.c:3445)
0x00007ffa96a7eb74 (mono-2.0-bdwgc) do_runtime_invoke (at C:/build/output/Unity-Technologies/mono/mono/metadata/object.c:3066)
0x00007ffa96a7ed0c (mono-2.0-bdwgc) mono_runtime_invoke (at C:/build/output/Unity-Technologies/mono/mono/metadata/object.c:3113)
0x00007ff7b80d9724 (Unity) scripting_method_invoke
0x00007ff7b80b7944 (Unity) ScriptingInvocation::Invoke
0x00007ff7b9bca011 (Unity) CallMono
0x00007ff7b9bd2ec7 (Unity) PostprocessPlayer
0x00007ff7b9bcd2b3 (Unity) DoBuildPlayer_PostBuild
0x00007ff7b9bcb3ae (Unity) DoBuildPlayer
0x00007ff7b9bbece5 (Unity) BuildPlayer
0x00007ff7b795587f (Unity) BuildPipeline::BuildPlayerInternalNoCheck
0x00007ff7b767eb4c (Unity) BuildPipeline_CUSTOM_BuildPlayerInternalNoCheck
0x000002302cc44b07 (Mono JIT Code) (wrapper managed-to-native) UnityEditor.BuildPipeline:BuildPlayerInternalNoCheck (string[],string,string,UnityEditor.BuildTargetGroup,UnityEditor.BuildTarget,int,UnityEditor.BuildOptions,string[],bool)
0x000002302cc442a3 (Mono JIT Code) UnityEditor.BuildPlayerWindow/DefaultBuildMethods:BuildPlayer (UnityEditor.BuildPlayerOptions)
0x000002302cc407eb (Mono JIT Code) UnityEditor.BuildPlayerWindow:CallBuildMethods (bool,UnityEditor.BuildOptions)
0x000002302c59ce83 (Mono JIT Code) UnityEditor.BuildPlayerWindow:GUIBuildButtons (UnityEditor.Modules.IBuildWindowExtension,bool,bool,bool,UnityEditor.Build.BuildPlatform,UnityEditor.Modules.IBuildPostprocessor)
0x000002302c59221b (Mono JIT Code) UnityEditor.BuildPlayerWindow:ShowBuildTargetSettings ()
0x000002302c587e2b (Mono JIT Code) UnityEditor.BuildPlayerWindow:OnGUI ()
0x000002301e68b122 (Mono JIT Code) UnityEditor.HostView:InvokeOnGUI (UnityEngine.Rect)
0x000002301e68af03 (Mono JIT Code) UnityEditor.DockArea:DrawView (UnityEngine.Rect)
0x000002301e678293 (Mono JIT Code) UnityEditor.DockArea:OldOnGUI ()
0x0000022ead57babf (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:DoOnGUI (UnityEngine.Event,UnityEngine.Matrix4x4,UnityEngine.Rect,bool,UnityEngine.Rect,System.Action,bool)
0x000002301e666d7b (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event,UnityEngine.Matrix4x4,UnityEngine.Rect,System.Action,bool)
0x000002302664695b (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event,System.Action,bool)
0x00000230266467c3 (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event,bool)
0x000002302664630b (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:SendEventToIMGUIRaw (UnityEngine.UIElements.EventBase,bool,bool)
0x00000230266461f3 (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:SendEventToIMGUI (UnityEngine.UIElements.EventBase,bool,bool)
0x0000022fa4dbd8c3 (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:ProcessEvent (UnityEngine.UIElements.EventBase)
0x0000022fa4dbd423 (Mono JIT Code) UnityEngine.UIElements.CallbackEventHandler:HandleEvent (UnityEngine.UIElements.EventBase)
0x0000022fa4dbd15f (Mono JIT Code) UnityEngine.UIElements.CallbackEventHandler:HandleEventAtCurrentTargetAndPhase (UnityEngine.UIElements.EventBase)
0x0000022fa4dbce93 (Mono JIT Code) UnityEngine.UIElements.CallbackEventHandler:HandleEventAtTargetPhase (UnityEngine.UIElements.EventBase)
0x0000023026643733 (Mono JIT Code) UnityEngine.UIElements.MouseCaptureDispatchingStrategy:DispatchEvent (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel)
0x0000022fa5001dee (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:ApplyDispatchingStrategies (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel,bool)
0x0000022fa50016bb (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:ProcessEvent (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel)
0x0000022fa4da6af3 (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:ProcessEventQueue ()
0x0000022fa4da6943 (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:OpenGate ()
0x0000022fa4da687b (Mono JIT Code) UnityEngine.UIElements.EventDispatcherGate:Dispose ()
0x0000022fa5001b93 (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:ProcessEvent (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel)
0x0000022fa5000f93 (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:Dispatch (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel,UnityEngine.UIElements.DispatchMode)
0x0000022fa5000deb (Mono JIT Code) UnityEngine.UIElements.BaseVisualElementPanel:SendEvent (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.DispatchMode)
0x0000022fa5009963 (Mono JIT Code) UnityEngine.UIElements.UIElementsUtility:DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel)
0x0000022fa5009253 (Mono JIT Code) UnityEngine.UIElements.UIElementsUtility:UnityEngine.UIElements.IUIElementsUtility.ProcessEvent (int,intptr,bool&)
0x0000022fa500900f (Mono JIT Code) UnityEngine.UIElements.UIEventRegistration:ProcessEvent (int,intptr)
0x0000022fa5008f2b (Mono JIT Code) UnityEngine.UIElements.UIEventRegistration/<>c:<.cctor>b__1_2 (int,intptr)
0x0000022fa5008d7d (Mono JIT Code) UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)
0x0000022fa5008e36 (Mono JIT Code) (wrapper runtime-invoke) <Module>:runtime_invoke_void_int_intptr_intptr& (object,intptr,intptr,intptr)
0x00007ffa96b3e0d4 (mono-2.0-bdwgc) mono_jit_runtime_invoke (at C:/build/output/Unity-Technologies/mono/mono/mini/mini-runtime.c:3445)
0x00007ffa96a7eb74 (mono-2.0-bdwgc) do_runtime_invoke (at C:/build/output/Unity-Technologies/mono/mono/metadata/object.c:3066)
0x00007ffa96a7ed0c (mono-2.0-bdwgc) mono_runtime_invoke (at C:/build/output/Unity-Technologies/mono/mono/metadata/object.c:3113)
0x00007ff7b80d9724 (Unity) scripting_method_invoke
0x00007ff7b80b7944 (Unity) ScriptingInvocation::Invoke
0x00007ff7b80b2595 (Unity) ScriptingInvocation::Invoke<void>
0x00007ff7b820caca (Unity) Scripting::UnityEngine::GUIUtilityProxy::ProcessEvent
0x00007ff7b8bfebf8 (Unity) GUIView::ProcessRetainedMode
0x00007ff7b91c635e (Unity) GUIView::OnInputEvent
0x00007ff7b8bfeb43 (Unity) GUIView::ProcessInputEventFromAPI
0x00007ff7b8bfea18 (Unity) GUIView::ProcessInputEvent
0x00007ff7b91c718e (Unity) GUIView::ProcessEventMessages
0x00007ff7b91c0f15 (Unity) GUIView::GUIViewWndProc
0x00007ffaec4674d6 (USER32) DispatchMessageW
0x00007ffaec466ff2 (USER32) DispatchMessageW
0x00007ff7b9199b63 (Unity) MainMessageLoop
0x00007ff7b919f540 (Unity) WinMain
0x00007ff7ba588bae (Unity) __scrt_common_main_seh
0x00007ffaec207ac4 (KERNEL32) BaseThreadInitThunk
0x00007ffaec67a8c1 (ntdll) RtlUserThreadStart

2:

Build completed with a result of 'Failed' in 47 seconds (47461 ms)
Building Library\Bee\artifacts\Android\iz17e\libil2cpp.so failed with output:
ld.lld: error: undefined symbol: RectTransfore_get_sizeDelta_m822A8493F2035677384F1540A2E9E5ACE63010BB
>>> referenced by UnityEngine.UI__2.cpp:6455 (D:/projects/Rocket jump/Library/Bee/artifacts/Android/il2cppOutput/cpp\UnityEngine.UI__2.cpp:6455)
>>>               Library/Bee/artifacts/Android/iz17e/094f6dqyyokv.o:(Scrollbar_UpdateDrag_mD7B02B0A326AF4BB20B66423F3EAEC8FD4BCC787)
>>> did you mean: RectTransform_get_sizeDelta_m822A8493F2035677384F1540A2E9E5ACE63010BB
>>> defined in: Library/Bee/artifacts/Android/iz17e/g0cfzukc359x.o
clang++: error: linker command failed with exit code 1 (use -v to see invocation)

0x00007ff7b81c229d (Unity) StackWalker::GetCurrentCallstack
0x00007ff7b81c7249 (Unity) StackWalker::ShowCallstack
0x00007ff7b91933a1 (Unity) GetStacktrace
0x00007ff7b9854c02 (Unity) DebugStringToFile
0x00007ff7b70d8736 (Unity) DebugLogHandler_CUSTOM_Internal_Log
0x00000230218df9c3 (Mono JIT Code) (wrapper managed-to-native) UnityEngine.DebugLogHandler:Internal_Log (UnityEngine.LogType,UnityEngine.LogOption,string,UnityEngine.Object)
0x00000230218df79b (Mono JIT Code) UnityEngine.DebugLogHandler:LogFormat (UnityEngine.LogType,UnityEngine.Object,string,object[])
0x00000230218df390 (Mono JIT Code) UnityEngine.Logger:Log (UnityEngine.LogType,object)
0x000002302e1d2225 (Mono JIT Code) UnityEngine.Debug:LogError (object)
0x000002302cc445e3 (Mono JIT Code) UnityEditor.BuildPlayerWindow/DefaultBuildMethods:BuildPlayer (UnityEditor.BuildPlayerOptions)
0x000002302cc407eb (Mono JIT Code) UnityEditor.BuildPlayerWindow:CallBuildMethods (bool,UnityEditor.BuildOptions)
0x000002302c59ce83 (Mono JIT Code) UnityEditor.BuildPlayerWindow:GUIBuildButtons (UnityEditor.Modules.IBuildWindowExtension,bool,bool,bool,UnityEditor.Build.BuildPlatform,UnityEditor.Modules.IBuildPostprocessor)
0x000002302c59221b (Mono JIT Code) UnityEditor.BuildPlayerWindow:ShowBuildTargetSettings ()
0x000002302c587e2b (Mono JIT Code) UnityEditor.BuildPlayerWindow:OnGUI ()
0x000002301e68b122 (Mono JIT Code) UnityEditor.HostView:InvokeOnGUI (UnityEngine.Rect)
0x000002301e68af03 (Mono JIT Code) UnityEditor.DockArea:DrawView (UnityEngine.Rect)
0x000002301e678293 (Mono JIT Code) UnityEditor.DockArea:OldOnGUI ()
0x0000022ead57babf (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:DoOnGUI (UnityEngine.Event,UnityEngine.Matrix4x4,UnityEngine.Rect,bool,UnityEngine.Rect,System.Action,bool)
0x000002301e666d7b (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event,UnityEngine.Matrix4x4,UnityEngine.Rect,System.Action,bool)
0x000002302664695b (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event,System.Action,bool)
0x00000230266467c3 (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event,bool)
0x000002302664630b (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:SendEventToIMGUIRaw (UnityEngine.UIElements.EventBase,bool,bool)
0x00000230266461f3 (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:SendEventToIMGUI (UnityEngine.UIElements.EventBase,bool,bool)
0x0000022fa4dbd8c3 (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:ProcessEvent (UnityEngine.UIElements.EventBase)
0x0000022fa4dbd423 (Mono JIT Code) UnityEngine.UIElements.CallbackEventHandler:HandleEvent (UnityEngine.UIElements.EventBase)
0x0000022fa4dbd15f (Mono JIT Code) UnityEngine.UIElements.CallbackEventHandler:HandleEventAtCurrentTargetAndPhase (UnityEngine.UIElements.EventBase)
0x0000022fa4dbce93 (Mono JIT Code) UnityEngine.UIElements.CallbackEventHandler:HandleEventAtTargetPhase (UnityEngine.UIElements.EventBase)
0x0000023026643733 (Mono JIT Code) UnityEngine.UIElements.MouseCaptureDispatchingStrategy:DispatchEvent (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel)
0x0000022fa5001dee (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:ApplyDispatchingStrategies (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel,bool)
0x0000022fa50016bb (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:ProcessEvent (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel)
0x0000022fa4da6af3 (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:ProcessEventQueue ()
0x0000022fa4da6943 (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:OpenGate ()
0x0000022fa4da687b (Mono JIT Code) UnityEngine.UIElements.EventDispatcherGate:Dispose ()
0x0000022fa5001b93 (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:ProcessEvent (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel)
0x0000022fa5000f93 (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:Dispatch (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel,UnityEngine.UIElements.DispatchMode)
0x0000022fa5000deb (Mono JIT Code) UnityEngine.UIElements.BaseVisualElementPanel:SendEvent (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.DispatchMode)
0x0000022fa5009963 (Mono JIT Code) UnityEngine.UIElements.UIElementsUtility:DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel)
0x0000022fa5009253 (Mono JIT Code) UnityEngine.UIElements.UIElementsUtility:UnityEngine.UIElements.IUIElementsUtility.ProcessEvent (int,intptr,bool&)
0x0000022fa500900f (Mono JIT Code) UnityEngine.UIElements.UIEventRegistration:ProcessEvent (int,intptr)
0x0000022fa5008f2b (Mono JIT Code) UnityEngine.UIElements.UIEventRegistration/<>c:<.cctor>b__1_2 (int,intptr)
0x0000022fa5008d7d (Mono JIT Code) UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)
0x0000022fa5008e36 (Mono JIT Code) (wrapper runtime-invoke) <Module>:runtime_invoke_void_int_intptr_intptr& (object,intptr,intptr,intptr)
0x00007ffa96b3e0d4 (mono-2.0-bdwgc) mono_jit_runtime_invoke (at C:/build/output/Unity-Technologies/mono/mono/mini/mini-runtime.c:3445)
0x00007ffa96a7eb74 (mono-2.0-bdwgc) do_runtime_invoke (at C:/build/output/Unity-Technologies/mono/mono/metadata/object.c:3066)
0x00007ffa96a7ed0c (mono-2.0-bdwgc) mono_runtime_invoke (at C:/build/output/Unity-Technologies/mono/mono/metadata/object.c:3113)
0x00007ff7b80d9724 (Unity) scripting_method_invoke
0x00007ff7b80b7944 (Unity) ScriptingInvocation::Invoke
0x00007ff7b80b2595 (Unity) ScriptingInvocation::Invoke<void>
0x00007ff7b820caca (Unity) Scripting::UnityEngine::GUIUtilityProxy::ProcessEvent
0x00007ff7b8bfebf8 (Unity) GUIView::ProcessRetainedMode
0x00007ff7b91c635e (Unity) GUIView::OnInputEvent
0x00007ff7b8bfeb43 (Unity) GUIView::ProcessInputEventFromAPI
0x00007ff7b8bfea18 (Unity) GUIView::ProcessInputEvent
0x00007ff7b91c718e (Unity) GUIView::ProcessEventMessages
0x00007ff7b91c0f15 (Unity) GUIView::GUIViewWndProc
0x00007ffaec4674d6 (USER32) DispatchMessageW
0x00007ffaec466ff2 (USER32) DispatchMessageW
0x00007ff7b9199b63 (Unity) MainMessageLoop
0x00007ff7b919f540 (Unity) WinMain
0x00007ff7ba588bae (Unity) __scrt_common_main_seh
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0x00007ffaec67a8c1 (ntdll) RtlUserThreadStart

Does playmode run?

The name may or may not be mangled. If it isn’t, it looks like a typo RectTransfore instead of RectTransform. Check if you have that typo anywhere in your code, possibly enclosed in platform- or editor specific #if statements which would cause it to occur only when building.