[Mono-dev] System.ExecutionEngineException: Failed to create shadow copy (CopyFile).

Alistair Bush alistair.bush at gmail.com
Mon Dec 23 11:57:43 UTC 2013

I have be working to get the fubu (mvc) framework and associated tools
working on mono/linux.
I have gotten most of the way to running a basic app but have sadly come
stuck on the following and am running out of ideas.

Basically I have setup a 'web' project using fubu new and am attempting to
run it by calling fubu run.

Sadly i'm getting the output [1] and as you will be able to see this is
caused by a ExecutionEngineException when attempting to call

At this particular point in the code it is my understanding that the
application is within a separate app domain ( see
Bottles.Services.Remote.RemoteServicesProxy ).

This is anything which should be stopping mono from inspecting Type
information on a Type when within a separate app domain?

Also it the moment im a little stuck on how to get more information to
debug this issue.  Any suggestions would be welcomed.   Thanks.

$ fubu run --directory src/fubutest
Alias is returning '/home/alistair/Projects/fubu/tests/fubutest'
Alias is returning 'src/fubutest'
Assembly bin path is bin
The configuration file is
Started service Fubu.Running.RemoteFubuMvcBootstrapper
Trying to start application
/home/alistair/Projects/fubu/tests/fubutest/src/fubutest with port number
FubuMode = Development
ERROR: System.ExecutionEngineException: Failed to create shadow copy

Server stack trace:
  at (wrapper managed-to-native) System.Type:type_is_assignable_from
  at System.Type.IsAssignableFrom (System.Type c) [0x00000] in <filename
  at FubuCore.TypeExtensions.IsConcreteTypeOf[IApplicationSource]
(System.Type pluggedType) [0x00000] in <filename unknown>:0
  at Fubu.Running.ApplicationSourceFinder.<Find>m__1 (System.Type x)
[0x00000] in <filename unknown>:0
() [0x00000] in <filename unknown>:0
() [0x00000] in <filename unknown>:0
  at System.Linq.Enumerable.Any[Type] (IEnumerable`1 source) [0x00000] in
<filename unknown>:0
  at Fubu.Running.ApplicationSourceChooser.Find
(Fubu.Running.StartApplication message, System.Action`1 onFound) [0x00000]
in <filename unknown>:0
  at Fubu.Running.RemoteFubuMvcBootstrapper.Receive
(Fubu.Running.StartApplication message) [0x00000] in <filename unknown>:0
(IListener`1 x) [0x00000] in <filename unknown>:0
(IEnumerable`1 values, System.Action`1 eachAction) [0x00000] in <filename
  at Bottles.Services.Messaging.MessagingHub.Send[StartApplication]
(Fubu.Running.StartApplication message) [0x00000] in <filename unknown>:0
(System.Object o, Bottles.Services.Messaging.MessagingHub listeners)
[0x00000] in <filename unknown>:0
  at Bottles.Services.Messaging.MessagingHub.SendJson (System.String json)
[0x00000] in <filename unknown>:0
  at Bottles.Services.Remote.RemoteServicesProxy.SendJson (System.String
json) [0x00000] in <filename unknown>:0
  at (wrapper managed-to-native)
  at System.Runtime.Remoting.RemotingServices.InternalExecuteMessage
(System.MarshalByRefObject target, IMethodCallMessage reqMsg) [0x00000] in
<filename unknown>:0

Exception rethrown at [0]:

  at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke
(System.Runtime.Remoting.Proxies.RealProxy rp, IMessage msg,
System.Exception& exc, System.Object[]& out_args) [0x00000] in <filename
Shutting down finalizer thread timed out.
Failed to destroy mutex 0x965988 error code 16 errno 2
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