I am getting following error when I click on pencil in DNN9. It was working fine before but I started working on MVC module project.

<Error>

<Message>An error has occurred.</Message>

<ExceptionMessage>

An error occurred when trying to create a controller of type 'ControlBarController'. Make sure that the controller has a parameterless public constructor.

</ExceptionMessage>

<ExceptionType>System.InvalidOperationException</ExceptionType>

<StackTrace>

at System.Web.Http.Dispatcher.DefaultHttpControllerActivator.Create(HttpRequestMessage request, HttpControllerDescriptor controllerDescriptor, Type controllerType) at System.Web.Http.Tracing.Tracers.HttpControllerActivatorTracer.<>c__DisplayClass2.<System.Web.Http.Dispatcher.IHttpControllerActivator.Create>b__0() at System.Web.Http.Tracing.ITraceWriterExtensions.TraceBeginEnd(ITraceWriter traceWriter, HttpRequestMessage request, String category, TraceLevel level, String operatorName, String operationName, Action`1 beginTrace, Action execute, Action`1 endTrace, Action`1 errorTrace) at System.Web.Http.Tracing.Tracers.HttpControllerActivatorTracer.System.Web.Http.Dispatcher.IHttpControllerActivator.Create(HttpRequestMessage request, HttpControllerDescriptor controllerDescriptor, Type controllerType) at System.Web.Http.Controllers.HttpControllerDescriptor.CreateController(HttpRequestMessage request) at System.Web.Http.Tracing.Tracers.HttpControllerDescriptorTracer.<>c__DisplayClass2.<CreateController>b__0() at System.Web.Http.Tracing.ITraceWriterExtensions.TraceBeginEnd(ITraceWriter traceWriter, HttpRequestMessage request, String category, TraceLevel level, String operatorName, String operationName, Action`1 beginTrace, Action execute, Action`1 endTrace, Action`1 errorTrace) at System.Web.Http.Tracing.Tracers.HttpControllerDescriptorTracer.CreateController(HttpRequestMessage request) at System.Web.Http.Dispatcher.HttpControllerDispatcher.<SendAsync>d__1.MoveNext()

</StackTrace>

<InnerException>

<Message>An error has occurred.</Message>

<ExceptionMessage>

Exception has been thrown by the target of an invocation.

</ExceptionMessage>

<ExceptionType>System.Reflection.TargetInvocationException</ExceptionType>

<StackTrace>

at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck) at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark) at System.Activator.CreateInstance[T]() at DotNetNuke.Framework.ServiceLocator`2.InitInstance() at System.Lazy`1.CreateValue() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Lazy`1.get_Value() at lambda_method(Closure ) at System.Web.Http.Dispatcher.DefaultHttpControllerActivator.Create(HttpRequestMessage request, HttpControllerDescriptor controllerDescriptor, Type controllerType)

</StackTrace>

<InnerException>

<Message>An error has occurred.</Message>

<ExceptionMessage>

The type initializer for 'DotNetNuke.ExtensionPoints.ExtensionPointManager' threw an exception.

</ExceptionMessage>

<ExceptionType>System.TypeInitializationException</ExceptionType>

<StackTrace>

at DotNetNuke.ExtensionPoints.ExtensionPointManager.ComposeParts(Object[] attributeParts) at DotNetNuke.Web.Components.Controllers.ControlBarController..ctor()

</StackTrace>

<InnerException>

<Message>An error has occurred.</Message>

<ExceptionMessage>

Could not load file or assembly 'ClearScriptV8-64.dll' or one of its dependencies. The specified module could not be found.

</ExceptionMessage>

<ExceptionType>System.IO.FileNotFoundException</ExceptionType>

<StackTrace>

at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) at System.Reflection.Assembly.Load(AssemblyName assemblyRef) at System.ComponentModel.Composition.Hosting.AssemblyCatalog.LoadAssembly(String codeBase) at System.ComponentModel.Composition.Hosting.AssemblyCatalog..ctor(String codeBase) at DotNetNuke.ExtensionPoints.SafeDirectoryCatalog..ctor(String directory) at DotNetNuke.ExtensionPoints.ExtensionPointManager.InitializeMefCompositionContainer() at DotNetNuke.ExtensionPoints.ExtensionPointManager..cctor()

</StackTrace>

</InnerException>

</InnerException>

</InnerException>

</Error>