Value cannot be null. Parameter name: instance

Question

|at System.ComponentModel.TypeDescriptor.AddAttributes(Object instance,
Attribute[] attributes)
at
Microsoft.VisualStudio.Design.VSDesignSurface.CreateDesigner(IComponent
component, Boolean rootDesigner)
at
System.ComponentModel.Design.DesignerHost.AddToContainerPostProcess(IComponent
component, String name, IContainer containerToAddTo)
at
System.ComponentModel.Design.DesignerHost.PerformAdd(IComponent component,
String name)
at
System.ComponentModel.Design.DesignerHost.System.ComponentModel.Design.IDesignerHost.CreateComponent(Type
componentType, String name)
at
System.ComponentModel.Design.Serialization.DesignerSerializationManager.CreateInstance(Type
type, ICollection arguments, String name, Boolean addToContainer)
at
System.ComponentModel.Design.Serialization.DesignerSerializationManager.System.ComponentModel.Design.Serialization.IDesignerSerializationManager.CreateInstance(Type
type, ICollection arguments, String name, Boolean addToContainer)
at
System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.Deserialize(IDesignerSerializationManager
manager, CodeTypeDeclaration declaration)
at
System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager
manager)
at
Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager
serializationManager)
at
Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.DeferredLoadHandler.Microsoft.VisualStudio.TextManager.Interop.IVsTextBufferDataEvents.OnLoadCompleted(Int32
fReload)|at System.ComponentModel.TypeDescriptor.AddAttributes(Object instance,
Attribute[] attributes)
at
Microsoft.VisualStudio.Design.VSDesignSurface.CreateDesigner(IComponent
component, Boolean rootDesigner)
at
System.ComponentModel.Design.DesignerHost.AddToContainerPostProcess(IComponent
component, String name, IContainer containerToAddTo)
at
System.ComponentModel.Design.DesignerHost.PerformAdd(IComponent component,
String name)
at
System.ComponentModel.Design.DesignerHost.System.ComponentModel.Design.IDesignerHost.CreateComponent(Type
componentType, String name)
at
System.ComponentModel.Design.Serialization.DesignerSerializationManager.CreateInstance(Type
type, ICollection arguments, String name, Boolean addToContainer)
at
System.ComponentModel.Design.Serialization.DesignerSerializationManager.System.ComponentModel.Design.Serialization.IDesignerSerializationManager.CreateInstance(Type
type, ICollection arguments, String name, Boolean addToContainer)
at
System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.Deserialize(IDesignerSerializationManager
manager, CodeTypeDeclaration declaration)
at
System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager
manager)
at
Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager
serializationManager)
at
Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.DeferredLoadHandler.Microsoft.VisualStudio.TextManager.Interop.IVsTextBufferDataEvents.OnLoadCompleted(Int32
fReload)|at System.ComponentModel.TypeDescriptor.AddAttributes(Object instance,
Attribute[] attributes)
at
Microsoft.VisualStudio.Design.VSDesignSurface.CreateDesigner(IComponent
component, Boolean rootDesigner)
at
System.ComponentModel.Design.DesignerHost.AddToContainerPostProcess(IComponent
component, String name, IContainer containerToAddTo)
at
System.ComponentModel.Design.DesignerHost.PerformAdd(IComponent component,
String name)
at
System.ComponentModel.Design.DesignerHost.System.ComponentModel.Design.IDesignerHost.CreateComponent(Type
componentType, String name)
at
System.ComponentModel.Design.Serialization.DesignerSerializationManager.CreateInstance(Type
type, ICollection arguments, String name, Boolean addToContainer)
at
System.ComponentModel.Design.Serialization.DesignerSerializationManager.System.ComponentModel.Design.Serialization.IDesignerSerializationManager.CreateInstance(Type
type, ICollection arguments, String name, Boolean addToContainer)
at
System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.Deserialize(IDesignerSerializationManager
manager, CodeTypeDeclaration declaration)
at
System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager
manager)
at
Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager
serializationManager)
at
Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.DeferredLoadHandler.Microsoft.VisualStudio.TextManager.Interop.IVsTextBufferDataEvents.OnLoadCompleted(Int32
fReload)| | -------- | -------- | -------- | |at System.ComponentModel.TypeDescriptor.AddAttributes(Object instance,
Attribute[] attributes)
at
Microsoft.VisualStudio.Design.VSDesignSurface.CreateDesigner(IComponent
component, Boolean rootDesigner)
at
System.ComponentModel.Design.DesignerHost.AddToContainerPostProcess(IComponent
component, String name, IContainer containerToAddTo)
at
System.ComponentModel.Design.DesignerHost.PerformAdd(IComponent component,
String name)
at
System.ComponentModel.Design.DesignerHost.System.ComponentModel.Design.IDesignerHost.CreateComponent(Type
componentType, String name)
at
System.ComponentModel.Design.Serialization.DesignerSerializationManager.CreateInstance(Type
type, ICollection arguments, String name, Boolean addToContainer)
at
System.ComponentModel.Design.Serialization.DesignerSerializationManager.System.ComponentModel.Design.Serialization.IDesignerSerializationManager.CreateInstance(Type
type, ICollection arguments, String name, Boolean addToContainer)
at
System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.Deserialize(IDesignerSerializationManager
manager, CodeTypeDeclaration declaration)
at
System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager
manager)
at
Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager
serializationManager)
at
Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.DeferredLoadHandler.Microsoft.VisualStudio.TextManager.Interop.IVsTextBufferDataEvents.OnLoadCompleted(Int32
fReload)at System.ComponentModel.TypeDescriptor.AddAttributes(Object instance,
Attribute[] attributes)
at
Microsoft.VisualStudio.Design.VSDesignSurface.CreateDesigner(IComponent
component, Boolean rootDesigner)
at
System.ComponentModel.Design.DesignerHost.AddToContainerPostProcess(IComponent
component, String name, IContainer containerToAddTo)
at
System.ComponentModel.Design.DesignerHost.PerformAdd(IComponent component,
String name)
at
System.ComponentModel.Design.DesignerHost.System.ComponentModel.Design.IDesignerHost.CreateComponent(Type
componentType, String name)
at
System.ComponentModel.Design.Serialization.DesignerSerializationManager.CreateInstance(Type
type, ICollection arguments, String name, Boolean addToContainer)
at
System.ComponentModel.Design.Serialization.DesignerSerializationManager.System.ComponentModel.Design.Serialization.IDesignerSerializationManager.CreateInstance(Type
type, ICollection arguments, String name, Boolean addToContainer)
at
System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.Deserialize(IDesignerSerializationManager
manager, CodeTypeDeclaration declaration)
at
System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager
manager)
at
Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager
serializationManager)
at
Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.DeferredLoadHandler.Microsoft.VisualStudio.TextManager.Interop.IVsTextBufferDataEvents.OnLoadCompleted(Int32
fReload) at System.ComponentModel.TypeDescriptor.AddAttributes(Object instance,
Attribute[] attributes)
at
Microsoft.VisualStudio.Design.VSDesignSurface.CreateDesigner(IComponent
component, Boolean rootDesigner)
at
System.ComponentModel.Design.DesignerHost.AddToContainerPostProcess(IComponent
component, String name, IContainer containerToAddTo)
at
System.ComponentModel.Design.DesignerHost.PerformAdd(IComponent component,
String name)
at
System.ComponentModel.Design.DesignerHost.System.ComponentModel.Design.IDesignerHost.CreateComponent(Type
componentType, String name)
at
System.ComponentModel.Design.Serialization.DesignerSerializationManager.CreateInstance(Type
type, ICollection arguments, String name, Boolean addToContainer)
at
System.ComponentModel.Design.Serialization.DesignerSerializationManager.System.ComponentModel.Design.Serialization.IDesignerSerializationManager.CreateInstance(Type
type, ICollection arguments, String name, Boolean addToContainer)
at
System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.Deserialize(IDesignerSerializationManager
manager, CodeTypeDeclaration declaration)
at
System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager
manager)
at
Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager
serializationManager)
at
Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.DeferredLoadHandler.Microsoft.VisualStudio.TextManager.Interop.IVsTextBufferDataEvents.OnLoadCompleted(Int32
fReload) at System.ComponentModel.TypeDescriptor.AddAttributes(Object instance, Attribute[] attributes) at Microsoft.VisualStudio.Design.VSDesignSurface.CreateDesigner(IComponent component, Boolean rootDesigner) at System.ComponentModel.Design.DesignerHost.AddToContainerPostProcess(IComponent component, String name, IContainer containerToAddTo) at System.ComponentModel.Design.DesignerHost.PerformAdd(IComponent component, String name) at System.ComponentModel.Design.DesignerHost.System.ComponentModel.Design.IDesignerHost.CreateComponent(Type componentType, String name) at System.ComponentModel.Design.Serialization.DesignerSerializationManager.CreateInstance(Type type, ICollection arguments, String name, Boolean addToContainer) at System.ComponentModel.Design.Serialization.DesignerSerializationManager.System.ComponentModel.Design.Serialization.IDesignerSerializationManager.CreateInstance(Type type, ICollection arguments, String name, Boolean addToContainer) at System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.Deserialize(IDesignerSerializationManager manager, CodeTypeDeclaration declaration) at System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager manager) at Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager serializationManager) at Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.DeferredLoadHandler.Microsoft.VisualStudio.TextManager.Interop.IVsTextBufferDataEvents.OnLoadCompleted(Int32 fReload)|

Answer 1

Hi @THANH TRUONG VAN , Welcome to Microsoft Q&A,

You didn't add the code that raised the error message, so you can only judge from the error message.

You seem to be experiencing a stack trace error related to component creation and serialization. This typically involves design-time support for Windows Forms or other UI frameworks in Visual Studio.

If you're using custom components or controls, make sure they're implemented correctly and don't have any serialization or design-time issues. Review the constructor and serialization logic.

Check the files generated by the designer (for example, for example) for any inconsistencies or issues in component initialization. FormName.Designer.cs.

Best Regards,

Jiale

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