UnusedBytecodeStripper2.exe did not run properly!

I am trying make my iOS game to build for iOS. I set the scripting backend to IL2CPP and i am getting the following errors

Failed running /Applications/Unity/Unity.app/Contents/Frameworks/Tools/UnusedByteCodeStripper2/UnusedBytecodeStripper2.exe -out "/Users/abeltherock007/Documents/Unity Projects/Talking Superstar 2/Temp/StagingArea/Data/Managed" -l none -c link -x "/Applications/Unity/Unity.app/Contents/Frameworks/Tools/UnusedByteCodeStripper/native_link.xml" -f "/Applications/Unity/Unity.app/Contents/Frameworks/il2cpp/LinkerDescriptors" -x "/Users/abeltherock007/Documents/Unity Projects/Talking Superstar 2/Temp/StagingArea/Data/Managed/../platform_native_link.xml" -x "/Users/abeltherock007/Documents/Unity Projects/Talking Superstar 2/Temp/StagingArea/Data/methods_pointedto_by_uievents.xml" -x "/Users/abeltherock007/Documents/Unity Projects/Talking Superstar 2/Assets/link.xml" -d "/Users/abeltherock007/Documents/Unity Projects/Talking Superstar 2/Temp/StagingArea/Data/Managed" -a "/Users/abeltherock007/Documents/Unity Projects/Talking Superstar 2/Temp/StagingArea/Data/Managed/Assembly-CSharp.dll" -a "/Users/abeltherock007/Documents/Unity Projects/Talking Superstar 2/Temp/StagingArea/Data/Managed/UnityEngine.UI.dll"

stdout;
Fatal error in Mono CIL Linker
Mono.Cecil.AssemblyResolutionException: Failed to resolve assembly: 'U3DXTCore, Culture=neutral, PublicKeyToken=null'
at Mono.Linker.LinkContext.Resolve (IMetadataScope scope) [0x00000] in <filename unknown>:0
at Mono.Linker.Steps.ResolveFromXmlStep.GetAssembly (Mono.Linker.LinkContext context, System.String assemblyName) [0x00000] in <filename unknown>:0
at Mono.Linker.Steps.ResolveFromXmlStep.ProcessAssemblies (Mono.Linker.LinkContext context, System.Xml.XPath.XPathNodeIterator iterator) [0x00000] in <filename unknown>:0
at Mono.Linker.Steps.ResolveFromXmlStep.Process () [0x00000] in <filename unknown>:0
at Mono.Linker.Steps.BaseStep.Process (Mono.Linker.LinkContext context) [0x00000] in <filename unknown>:0
at Mono.Linker.Pipeline.Process (Mono.Linker.LinkContext context) [0x00000] in <filename unknown>:0
at Mono.Linker.Driver.Run () [0x00000] in <filename unknown>:0
at Mono.Linker.Driver.RunDriver (Mono.Linker.Driver driver) [0x00000] in <filename unknown>:0
stderr:

UnityEngine.Debug:LogError(Object)
UnityEditorInternal.Runner:RunManagedProgram(String, String, String, CompilerOutputParserBase)
UnityEditorInternal.AssemblyStripper:RunAssemblyLinker(IEnumerable`1, String&, String&, String, String)
UnityEditorInternal.AssemblyStripper:StripAssembliesTo(String, String, String&, String&, String, String, IEnumerable`1)
UnityEditorInternal.AssemblyStripper:Strip(String, String, String&, String&, String, String, IEnumerable`1)
UnityEditorInternal.AssemblyStripper:Strip(String[], String[], String, String, String&, String&, String, String, IEnumerable`1)
UnityEditorInternal.IL2CPPBuilder:RunAssemblyStripper(IEnumerable, String, String[], String[], String)
UnityEditorInternal.IL2CPPBuilder:StripAssemblies(String[], String)
UnityEditorInternal.IL2CPPBuilder:Run()
UnityEditorInternal.IL2CPPUtils:RunIl2Cpp(String, String, IIl2CppPlatformProvider, Action`1, RuntimeClassRegistry)
UnityEditor.HostView:OnGUI()

 

Same here. Have you managed to find a solution to your problem?