Question

打开设计界面时，出现“对 COM 组件的调用返回了错误 HRESULT E_FAIL。 ”，用的全是.net自带的控件。

此错误的实例(1) 1。 隐藏调用堆栈 在 System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo)在 Microsoft.VisualStudio.LanguageServices.Implementation.Utilities.Exceptions.ThrowEFail()在 Microsoft.VisualStudio.LanguageServices.Implementation.CodeModel.CodeTypeRef.LookupTypeSymbol()在 Microsoft.VisualStudio.LanguageServices.Implementation.CodeModel.CodeTypeRef.get_TypeKind()在 EnvDTE.CodeTypeRef.get_TypeKind()在 Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomParser.GetUrtTypeFromVsType(CodeTypeRef vsType)在 Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomParser.OnTypePopulateMembers(Object sender, EventArgs e)在 System.CodeDom.CodeTypeDeclaration.get_Members()在 Microsoft.VisualStudio.Design.Serialization.CodeDom.MergedCodeDomParser.CodeTypeDeclarationPopulator.OnPopulateMembers(Object sender, EventArgs e)在 System.CodeDom.CodeTypeDeclaration.get_Members()在 System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.Deserialize(IDesignerSerializationManager manager, CodeTypeDeclaration declaration)在 System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager manager)在 Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager serializationManager)在 System.ComponentModel.Design.Serialization.BasicDesignerLoader.BeginLoad(IDesignerLoaderHost host)

Answer 1

看上去确实似乎是VS出问题，安装包还在的话重装？