At first I got a file not found error regarding JetBrains.Platform.VisualStudio.Core.dll so I also copied in the package JetBrains.Platform.VisualStudio.183.0.20190304.43214.
--- EXCEPTION #1/2 [NullReferenceException]
Message = "Object reference not set to an instance of an object."
ExceptionPath = Root.InnerException
ClassName = System.NullReferenceException
HResult = E_POINTER=COR_E_NULLREFERENCE=80004003
Source = JetBrains.ReSharper.Psi.CSharp
StackTraceString = "
at JetBrains.ReSharper.Psi.CSharp.Impl.Tree.ArrayCreationExpression.SetArrayType(IArrayType arrayType)
at StyleCop.ReSharper.CodeCleanup.Rules.ReadabilityRules.SwapArrayCreationToBuiltInType(IArrayCreationExpression arrayCreationExpression)
at StyleCop.ReSharper.CodeCleanup.Rules.ReadabilityRules.SwapToBuiltInTypeAlias(ITreeNode node)
at StyleCop.ReSharper.CodeCleanup.Rules.ReadabilityRules.SwapToBuiltInTypeAlias(ITreeNode node)
at StyleCop.ReSharper.CodeCleanup.Rules.ReadabilityRules.SwapToBuiltInTypeAlias(ITreeNode node)
at StyleCop.ReSharper.CodeCleanup.Rules.ReadabilityRules.SwapToBuiltInTypeAlias(ITreeNode node)
at StyleCop.ReSharper.CodeCleanup.Rules.ReadabilityRules.SwapToBuiltInTypeAlias(ITreeNode node)
at StyleCop.ReSharper.CodeCleanup.Rules.ReadabilityRules.SwapToBuiltInTypeAlias(ITreeNode node)
at StyleCop.ReSharper.CodeCleanup.Rules.ReadabilityRules.SwapToBuiltInTypeAlias(ITreeNode node)
at StyleCop.ReSharper.CodeCleanup.Rules.ReadabilityRules.SwapToBuiltInTypeAlias(ITreeNode node)
at StyleCop.ReSharper.CodeCleanup.Rules.ReadabilityRules.SwapToBuiltInTypeAlias(ITreeNode node)
at StyleCop.ReSharper.CodeCleanup.Rules.ReadabilityRules.SwapToBuiltInTypeAlias(ITreeNode node)
at StyleCop.ReSharper.CodeCleanup.Rules.ReadabilityRules.SwapToBuiltInTypeAlias(ITreeNode node)
at StyleCop.ReSharper.CodeCleanup.Rules.ReadabilityRules.ExecuteAll(ICSharpFile file, Settings settings)
at StyleCop.ReSharper.CodeCleanup.StyleCopCodeCleanupModule.<>c__DisplayClass11_0.<InternalProcess>b__0(Lifetime lifetime)
at JetBrains.DataFlow.Lifetimes.Using(Action`1 ?)
at JetBrains.ReSharper.Psi.Transactions.PsiTransactions.Execute(String commandName, Action handler)
"
--- Outer ---
--- EXCEPTION #2/2 [LoggerException]
Message = "Object reference not set to an instance of an object."
ExceptionPath = Root
ClassName = JetBrains.Util.LoggerException
InnerException = "Exception #1 at Root.InnerException"
HResult = COR_E_APPLICATION=80131600
StackTraceString = "
at JetBrains.Util.Logging.Logger.LogException(Exception ex)
at JetBrains.ReSharper.Psi.Transactions.PsiTransactions.Execute(String commandName, Action handler)
at StyleCop.ReSharper.CodeCleanup.StyleCopCodeCleanupModule.Process(IPsiSourceFile projectFile, IRangeMarker rangeMarker, CodeCleanupProfile profile, IProgressIndicator progressIndicator)
at JetBrains.ReSharper.Feature.Services.CodeCleanup.CodeCleanup.Run(IPsiSourceFile sourceFile, DocumentRange range, Int32& caret, CodeCleanupProfile profile, IProgressIndicator progressIndicator)
at JetBrains.ReSharper.Features.Altering.CodeCleanup.CodeCleanupRunner.CleanupFilesWithProgress(ISolution solution, IList`1 files, CodeCleanupProfile cleanupProfile, IProgressIndicator progressIndicator)
at JetBrains.ReSharperAutomationTools.CommandLine.Common.Console.BatchTool.Progress.ToolTaskExecutor.ExecuteTask(String taskName, TaskCancelable cancelable, Action`1 task)
at JetBrains.ReSharper.Features.Altering.CodeCleanup.CodeCleanupRunner.CleanupFiles(ICodeCleanupFilesProvider cleanupFilesCollector, CodeCleanupProfile cleanupProfile)
at JetBrains.Application.Threading.IShellLocksEx.ExecuteWithReadLock(IShellLocks th?s, Action F)
at JetBrains.Threading.ReentrancyGuard.Execute(String name, Action action)
at JetBrains.Threading.ReentrancyGuard.TryExecute(String name, Action action)
at JetBrains.Threading.ReentrancyGuardEx.ExecuteOrQueue(ReentrancyGuard th?s, Lifetime lifetime, String name, Action F, TaskPriority priority)
at JetBrains.CommandLine.CleanupCode.Unattended.CodeEditing.CleanupCodeLauncher.Run()
at JetBrains.CommandLine.CleanupCode.Unattended.ConsoleCodeEditing.CleanupCodeProductMain.Main(Lifetime lifetime, IThreading invocator, IComponentContainer container, IShellLocks shellLocks, ILogger logger, ICleanupCodeSettings settings, IProductCommandLineArguments argumentsRaw)
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at JetBrains.Application.Environment.RunsPublicStaticIntMain.<>c__DisplayClass0_0.<.ctor>b__0()
at JetBrains.Util.Logging.Logger.Catch(Action action)
at JetBrains.Threading.JetDispatcher.Closure.Execute()
at JetBrains.Util.Concurrency.WinJetDispatcher.ProcessQueue(Int32 nMinBucket)
at System.Windows.Threading.DispatcherOperation.InvokeDelegateCore()
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(Object obj)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at JetBrains.DataFlow.Lifetimes.Using(Action`1 ?)
at JetBrains.Application.Environment.IJetHostEx.RunHostMessageLoop(IComponentContainer containerEnv)
at JetBrains.Application.Environment.HostParameters.JetHostParametersCaller.RunMainLoop(ComponentContainer containerEnv)
at JetBrains.Application.Environment.JetEnvironment.InternalRun(JetHostParametersCaller host, ComponentContainer containerEnv)
at JetBrains.Application.Environment.JetEnvironment.CreateAndRun(Full hostparams)
at JetBrains.ReSharperAutomationTools.CommandLine.Common.Application.CommandLineProgram.Main(Assembly assembly, Type environmentZoneType, HostInfo hostInfo, ICommandLineProductInfo productInfo, String[] args, IJetHostMixin[] mixins)
at JetBrains.ReSharperAutomationTools.CommandLine.Common.Application.CommandLineProgram.Run[TZone,TProductInfo](String productHostShortName, String[] args)
at JetBrains.CommandLine.CleanupCode.CleanupCodeProgram.Main(String[] args)
"
When I look at the diff I can see less changes than when I do a code cleanup within visual studio.