getting this error whilst building for android does anyone have a sollution?,getting this error whilst trying to build anyone has a solution?

 Exception: Unity.IL2CPP.Building.BuilderFailedException: C:\Program Files\Unity\Hub\Editor\2020.2.2f1\Editor\Data\PlaybackEngines\AndroidPlayer\NDK\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++ @"C:\Users\ralphael\AppData\Local\Temp\tmp68B0.tmp" -o "C:\Users\ralphael\Documents\citybuilder\apuzzling\Library\il2cpp_android_arm64-v8a\il2cpp_cache\linkresult_71AD3212973E48A7CFF06E2BD2162BF5\libil2cpp.so" -shared -Wl,-soname,libil2cpp.so -Wl,--no-undefined -Wl,-z,noexecstack -Wl,--gc-sections -Wl,--build-id -stdlib=libc++ -static-libstdc++ -target aarch64-linux-android21 -Wl,--wrap,sigaction "C:\Program Files\Unity\Hub\Editor\2020.2.2f1\Editor\Data\PlaybackEngines\AndroidPlayer\Variations\il2cpp\Release\StaticLibs\arm64-v8a\baselib.a" -llog -rdynamic -fuse-ld=bfd.exe
  
  C:/Users/ralphael/Documents/citybuilder/apuzzling/Library/il2cpp_android_arm64-v8a/il2cpp_cache/75B05C42C1A9365F511C0E7DF16D5481.o: In function `CanvasJSWrapper_init_m94C5B8973CFFF47C9E70ADADD383A87825486219`:
  C:\Users\ralphael\Documents\citybuilder\apuzzling\Library\Il2cppBuildCache\Android\arm64-v8a\il2cppOutput/Facebook.Unity.Canvas.cpp:426: undefined reference to `init`
  C:/Users/ralphael/Documents/citybuilder/apuzzling/Library/il2cpp_android_arm64-v8a/il2cpp_cache/75B05C42C1A9365F511C0E7DF16D5481.o: In function `CanvasJSWrapper_Logout_m0252CFE916C855AEE3F553270B2090A9C5E0A4A8`:
  C:\Users\ralphael\Documents\citybuilder\apuzzling\Library\Il2cppBuildCache\Android\arm64-v8a\il2cppOutput/Facebook.Unity.Canvas.cpp:452: undefined reference to `logout`
  C:/Users/ralphael/Documents/citybuilder/apuzzling/Library/il2cpp_android_arm64-v8a/il2cpp_cache/75B05C42C1A9365F511C0E7DF16D5481.o: In function `CanvasJSWrapper_logout_m43363262FC702845AAB3D6D811507358BBB5FCE8`:
  C:\Users\ralphael\Documents\citybuilder\apuzzling\Library\Il2cppBuildCache\Android\arm64-v8a\il2cppOutput/Facebook.Unity.Canvas.cpp:452: undefined reference to `logout`
  C:/Users/ralphael/Documents/citybuilder/apuzzling/Library/il2cpp_android_arm64-v8a/il2cpp_cache/75B05C42C1A9365F511C0E7DF16D5481.o: In function `CanvasJSWrapper_ActivateApp_m67954CB1527026719ED0E2E535F298A74B297E5C`:
  C:\Users\ralphael\Documents\citybuilder\apuzzling\Library\Il2cppBuildCache\Android\arm64-v8a\il2cppOutput/Facebook.Unity.Canvas.cpp:461: undefined reference to `activateApp`
  C:/Users/ralphael/Documents/citybuilder/apuzzling/Library/il2cpp_android_arm64-v8a/il2cpp_cache/75B05C42C1A9365F511C0E7DF16D5481.o: In function `CanvasJSWrapper_activateApp_mC2B19B302DD919AE48340D07C19BF90F8CEF5F04`:
  C:\Users\ralphael\Documents\citybuilder\apuzzling\Library\Il2cppBuildCache\Android\arm64-v8a\il2cppOutput/Facebook.Unity.Canvas.cpp:461: undefined reference to `activateApp`
  C:/Users/ralphael/Documents/citybuilder/apuzzling/Library/il2cpp_android_arm64-v8a/il2cpp_cache/75B05C42C1A9365F511C0E7DF16D5481.o: In function `CanvasJSWrapper_logPurchase_mB3887163B61586FCFDCF382866865C059E90CD6C`:
  C:\Users\ralphael\Documents\citybuilder\apuzzling\Library\Il2cppBuildCache\Android\arm64-v8a\il2cppOutput/Facebook.Unity.Canvas.cpp:483: undefined reference to `logPurchase`
  C:/Users/ralphael/Documents/citybuilder/apuzzling/Library/il2cpp_android_arm64-v8a/il2cpp_cache/75B05C42C1A9365F511C0E7DF16D5481.o: In function `CanvasJSWrapper_ui_m4C248B4EA95C7F89404AEF6DF5D23055F7069EB5`:
  C:\Users\ralphael\Documents\citybuilder\apuzzling\Library\Il2cppBuildCache\Android\arm64-v8a\il2cppOutput/Facebook.Unity.Canvas.cpp:512: undefined reference to `ui`
  C:/Users/ralphael/Documents/citybuilder/apuzzling/Library/il2cpp_android_arm64-v8a/il2cpp_cache/75B05C42C1A9365F511C0E7DF16D5481.o: In function `CanvasJSWrapper_InitScreenPosition_mAB527E22421E7AD6283DE5DD5ABB9AFD75DD6E28`:
  C:\Users\ralphael\Documents\citybuilder\apuzzling\Library\Il2cppBuildCache\Android\arm64-v8a\il2cppOutput/Facebook.Unity.Canvas.cpp:533: undefined reference to `initScreenPosition`
  C:/Users/ralphael/Documents/citybuilder/apuzzling/Library/il2cpp_android_arm64-v8a/il2cpp_cache/75B05C42C1A9365F511C0E7DF16D5481.o: In function `CanvasJSWrapper_initScreenPosition_mBB85115BEB9A723EA2286135F620251D9893CB8F`:
  C:\Users\ralphael\Documents\citybuilder\apuzzling\Library\Il2cppBuildCache\Android\arm64-v8a\il2cppOutput/Facebook.Unity.Canvas.cpp:533: undefined reference to `initScreenPosition`
  clang++.exe: error: linker command failed with exit code 1 (use -v to see invocation)
  
  
     at Unity.IL2CPP.Building.CppProgramBuilder.PostprocessObjectFiles(HashSet`1 objectFiles, CppToolChainContext toolChainContext)
     at Unity.IL2CPP.Building.CppProgramBuilder.Build(IBuildStatistics& statistics)
     at il2cpp.Compilation.CompilationDriver.Run(RuntimePlatform platform, BuildingOptions buildingOptions, ReadOnlyCollection`1 matchedAssemblyMethodSourceFiles)
     at il2cpp.Program.DoRun(String[] args, RuntimePlatform platform, BuildingOptions buildingOptions, Boolean throwExceptions)
  UnityEditorInternal.Runner.RunProgram (UnityEditor.Utils.Program p, System.String exe, System.String args, System.String workingDirectory, UnityEditor.Scripting.Compilers.CompilerOutputParserBase parser) (at <433cbae83977409887e43d50043210d2>:0)
  UnityEditorInternal.Runner.RunManagedProgram (System.String exe, System.String args, System.String workingDirectory, UnityEditor.Scripting.Compilers.CompilerOutputParserBase parser, System.Action`1[T] setupStartInfo) (at <433cbae83977409887e43d50043210d2>:0)
  UnityEditorInternal.IL2CPPBuilder.RunIl2CppWithArguments (System.Collections.Generic.List`1[T] arguments, System.Action`1[T] setupStartInfo, System.String generatedCppOutputDirectory) (at <433cbae83977409887e43d50043210d2>:0)
  UnityEditorInternal.IL2CPPBuilder.ConvertPlayerDlltoCpp (UnityEditor.Il2Cpp.Il2CppBuildPipelineData data, System.String outputDirectory, System.Boolean platformSupportsManagedDebugging) (at <433cbae83977409887e43d50043210d2>:0)
  UnityEditorInternal.IL2CPPBuilder.Run () (at <433cbae83977409887e43d50043210d2>:0)
  UnityEditorInternal.IL2CPPUtils.RunIl2Cpp (System.String tempFolder, System.String stagingAreaData, UnityEditorInternal.IIl2CppPlatformProvider platformProvider, System.Action`1[T] modifyOutputBeforeCompile, UnityEditor.RuntimeClassRegistry runtimeClassRegistry) (at <433cbae83977409887e43d50043210d2>:0)
  UnityEditor.Android.PostProcessor.Tasks.RunIl2Cpp.Execute (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <8554da968bee4c58879b31c6b5feb9f3>:0)
  UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <8554da968bee4c58879b31c6b5feb9f3>:0)
  UnityEditor.Android.PostProcessAndroidPlayer.PostProcess (UnityEditor.BuildTarget target, System.String stagingAreaData, System.String stagingArea, System.String playerPackage, System.String installPath, System.String companyName, System.String productName, UnityEditor.BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry, UnityEditor.Build.Reporting.BuildReport report) (at <8554da968bee4c58879b31c6b5feb9f3>:0)
  UnityEditor.Android.AndroidBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args, UnityEditor.BuildProperties& outProperties) (at <8554da968bee4c58879b31c6b5feb9f3>:0)
  UnityEditor.PostprocessBuildPlayer.Postprocess (UnityEditor.BuildTargetGroup targetGroup, UnityEditor.BuildTarget target, System.String installPath, System.String companyName, System.String productName, System.Int32 width, System.Int32 height, UnityEditor.BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry, UnityEditor.Build.Reporting.BuildReport report) (at <433cbae83977409887e43d50043210d2>:0)
  UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&)