CannotUnloadAppDomainException Class
Collapse the table of content
Expand the table of content

CannotUnloadAppDomainException Class

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

The exception that is thrown when an attempt to unload an application domain fails.


Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

public class CannotUnloadAppDomainException : SystemException

The CannotUnloadAppDomainException type exposes the following members.

Public methodCannotUnloadAppDomainException()Initializes a new instance of the CannotUnloadAppDomainException class.
Public methodCannotUnloadAppDomainException(String)Initializes a new instance of the CannotUnloadAppDomainException class with a specified error message.
Public methodCannotUnloadAppDomainException(String, Exception)Initializes a new instance of the CannotUnloadAppDomainException class with a specified error message and a reference to the inner exception that is the cause of this exception.

Public propertyDataGets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception.)
Public propertyHelpLinkGets or sets a link to the help file associated with this exception. (Inherited from Exception.)
Public propertyHResultGets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception.)
Public propertyInnerExceptionGets the Exception instance that caused the current exception. (Inherited from Exception.)
Public propertyMessageGets a message that describes the current exception. (Inherited from Exception.)
Public propertySourceGets or sets the name of the application or the object that causes the error. (Inherited from Exception.)
Public propertyStackTraceGets a string representation of the frames on the call stack at the time the current exception was thrown. (Inherited from Exception.)

Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetBaseExceptionWhen overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions. (Inherited from Exception.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the runtime type of the current instance. (Inherited from Exception.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringCreates and returns a string representation of the current exception. (Inherited from Exception.)

CannotUnloadAppDomainException is thrown when there is an attempt to unload the following:

  • The default application domain, which must remain loaded during the lifetime of the application.

  • An application domain with a running thread that cannot immediately stop execution.

  • An application domain that has already been unloaded.


In Windows Phone apps, there is only one application domain.

CannotUnloadAppDomainException uses the HRESULT COR_E_CANNOTUNLOADAPPDOMAIN, which has the value 0x80131015.

For a list of initial property values for an instance of CannotUnloadAppDomainException, see the CannotUnloadAppDomainException constructors.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

© 2017 Microsoft