Hi. I'm trying to build a simple little Android game and I keep getting this gradle build error. Anyone have any idea why?

UnityEditor.BuildPlayerWindow+BuildMethodException: 4 errors
at UnityEditor.BuildPlayerWindow+DefaultBuildMethods.BuildPlayer (UnityEditor.BuildPlayerOptions options) [0x002da] in <7fef092428a04dc89d2aa6ad3ce5d856>:0
at UnityEditor.BuildPlayerWindow.CallBuildMethods (System.Boolean askForBuildLocation, UnityEditor.BuildOptions defaultBuildOptions) [0x00080] in <7fef092428a04dc89d2aa6ad3ce5d856>:0
0x00007ff7eee3b56d (Unity) StackWalker::GetCurrentCallstack
0x00007ff7eee42129 (Unity) StackWalker::ShowCallstack
0x00007ff7efdc94e3 (Unity) GetStacktrace
0x00007ff7f047678d (Unity) DebugStringToFile
0x00007ff7edf9c212 (Unity) DebugLogHandler_CUSTOM_Internal_Log
0x000001e266b580d3 (Mono JIT Code) (wrapper managed-to-native) UnityEngine.DebugLogHandler:Internal_Log (UnityEngine.LogType,UnityEngine.LogOption,string,UnityEngine.Object)
0x000001e266b5800b (Mono JIT Code) UnityEngine.DebugLogHandler:LogFormat (UnityEngine.LogType,UnityEngine.Object,string,object)
0x000001e266b57d90 (Mono JIT Code) UnityEngine.Logger:Log (UnityEngine.LogType,object)
0x000001e2d4876f75 (Mono JIT Code) UnityEngine.Debug:LogError (object)
0x000001e266a4c7cb (Mono JIT Code) UnityEditor.BuildPlayerWindow:CallBuildMethods (bool,UnityEditor.BuildOptions)
0x000001e266a34113 (Mono JIT Code) UnityEditor.BuildPlayerWindow:GUIBuildButtons (UnityEditor.Modules.IBuildWindowExtension,bool,bool,bool,UnityEditor.Build.BuildPlatform,UnityEditor.Modules.IBuildPostprocessor)
0x000001e266a22233 (Mono JIT Code) UnityEditor.BuildPlayerWindow:ShowBuildTargetSettings ()
0x000001e2669ff993 (Mono JIT Code) UnityEditor.BuildPlayerWindow:OnGUI ()
0x000001e2fda4655a (Mono JIT Code) UnityEditor.HostView:InvokeOnGUI (UnityEngine.Rect)
0x000001e2fda46373 (Mono JIT Code) UnityEditor.DockArea:DrawView (UnityEngine.Rect)
0x000001e2fda3451b (Mono JIT Code) UnityEditor.DockArea:OldOnGUI ()
0x000001e2fda1b4d7 (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:DoOnGUI (UnityEngine.Event,UnityEngine.Matrix4x4,UnityEngine.Rect,bool,UnityEngine.Rect,System.Action,bool)
0x000001e2fda1a59b (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event,UnityEngine.Matrix4x4,UnityEngine.Rect,System.Action,bool)
0x000001e2468b938b (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event,System.Action,bool)
0x000001e2468b9213 (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event,bool)
0x000001e26699439b (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:SendEventToIMGUIRaw (UnityEngine.UIElements.EventBase,bool,bool)
0x000001e266994293 (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:SendEventToIMGUI (UnityEngine.UIElements.EventBase,bool,bool)
0x000001e23df46b3b (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:HandleEvent (UnityEngine.UIElements.EventBase)
0x000001e23df396d8 (Mono JIT Code) UnityEngine.UIElements.CallbackEventHandler:HandleEventAtTargetPhase (UnityEngine.UIElements.EventBase)
0x000001e266991e63 (Mono JIT Code) UnityEngine.UIElements.MouseCaptureDispatchingStrategy:DispatchEvent (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel)
0x000001e23df37b5e (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:ApplyDispatchingStrategies (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel,bool)
0x000001e23df376fb (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:ProcessEvent (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel)
0x000001e23df3d47b (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:ProcessEventQueue ()
0x000001e23df3bd23 (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:OpenGate ()
0x000001e23df3bc7b (Mono JIT Code) UnityEngine.UIElements.EventDispatcherGate:Dispose ()
0x000001e23df37983 (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:ProcessEvent (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel)
0x000001e23df371c3 (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:Dispatch (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel,UnityEngine.UIElements.DispatchMode)
0x000001e23df3705b (Mono JIT Code) UnityEngine.UIElements.BaseVisualElementPanel:SendEvent (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.DispatchMode)
0x000001e2fd9d0403 (Mono JIT Code) UnityEngine.UIElements.UIElementsUtility:DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel)
0x000001e24104fb93 (Mono JIT Code) UnityEngine.UIElements.UIElementsUtility:UnityEngine.UIElements.IUIElementsUtility.ProcessEvent (int,intptr,bool&)
0x000001e24104f9af (Mono JIT Code) UnityEngine.UIElements.UIEventRegistration:ProcessEvent (int,intptr)
0x000001e24585ffbb (Mono JIT Code) UnityEngine.UIElements.UIEventRegistration/<>c:<.cctor>b__1_2 (int,intptr)
0x000001e24105ff4d (Mono JIT Code) UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)
0x000001e24104f856 (Mono JIT Code) (wrapper runtime-invoke) :runtime_invoke_void_int_intptr_intptr& (object,intptr,intptr,intptr)
0x00007ffb20a5feb4 (mono-2.0-bdwgc) [mini-runtime.c:3445] mono_jit_runtime_invoke
0x00007ffb2099e764 (mono-2.0-bdwgc) [object.c:3066] do_runtime_invoke
0x00007ffb2099e8fc (mono-2.0-bdwgc) [object.c:3113] mono_runtime_invoke
0x00007ff7eed5ff04 (Unity) scripting_method_invoke
0x00007ff7eed3f704 (Unity) ScriptingInvocation::Invoke
0x00007ff7eed3a305 (Unity) ScriptingInvocation::Invoke
0x00007ff7eee845da (Unity) Scripting::UnityEngine::GUIUtilityProxy::ProcessEvent
0x00007ff7ef8a8c18 (Unity) GUIView::ProcessRetainedMode
0x00007ff7efdfa211 (Unity) GUIView::OnInputEvent
0x00007ff7ef8a8a2a (Unity) GUIView::ProcessInputEvent
0x00007ff7efdfb02d (Unity) GUIView::ProcessEventMessages
0x00007ff7efdf4cf9 (Unity) GUIView::GUIViewWndProc
0x00007ffb7efe8281 (USER32) DispatchMessageW
0x00007ffb7efe7d41 (USER32) DispatchMessageW
0x00007ff7efdcf503 (Unity) MainMessageLoop
0x00007ff7efdd3f4b (Unity) WinMain
0x00007ff7f119b05e (Unity) __scrt_common_main_seh
0x00007ffb804026bd (KERNEL32) BaseThreadInitThunk
0x00007ffb80aadfb8 (ntdll) RtlUserThreadStart