Adding/Removing Methods Causes Exception - c#

Strange problem. I have a class, and if I add any methods from it (including private methods) it causes an exception in a different class.
The exception is:
An exception of type 'System.MemberAccessException' occurred in mscorlib.dll
but was not handled in user code
Additional information: Type initializer was not callable.
The line that causes the exception is:
compositionService.DefaultCompositionService.SatisfyImportsOnce(this);
(compositionService is of type Microsoft.VisualStudio.ComponentModelHost.ComponentModel and this is a class that implements the Microsoft.VisualStudio.Shell.TableManager.ITableDataSource interface.)
This occurs even if I add a method such as:
private void DoNothing()
{
}
If I remove a class, the exception happens in the same line, but is this exception instead:
An exception of type 'System.InvalidCastException' occurred in mscorlib.dll
but was not handled in user code
Additional information: Unable to cast object of type
'System.Reflection.RuntimeMethodInfo' to type
'System.Reflection.ConstructorInfo'.
Both the added and removed methods are private.
The code is from https://github.com/vinaykapadia/sarif-sdk in the Sarif.Viewer.VisualStudio project, the file I'm adding the DoNothing() method to is CodeAnalysisResultManager.cs, and the exception is caused in ErrorList\SarifTableDataSouce.cs on line 36.
Any thoughts?

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The proxy is generated using a Task option, the new client instance is created each time the operation is called. Something like this could be spinning inside the timer:
void Foo()
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var client = new PingServiceClient();
try
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bool result = client.PingAsync().GetAwaiter().GetResult();
}
catch
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//log something
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finally
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}
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My question is, how should I correctly handle the cases when the network is down? Because the behavior is different. I either get an application crashing (I assume on a task finalizer, which is for some reason not handled neither in AppDomain.CurrentDomain.UnhandledException nor in TaskScheduler.UnobservedTaskException), or sometimes it just silently outputs tons of error messages, but not crashing anything. Messages like these:
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Exception thrown: 'System.Net.Sockets.SocketException' in System.dll
Exception thrown: 'System.Net.Sockets.SocketException' in System.dll
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Exception thrown: 'System.ServiceModel.EndpointNotFoundException' in System.ServiceModel.Internals.dll
Exception thrown: 'System.Net.Sockets.SocketException' in System.dll
Exception thrown: 'System.AggregateException' in mscorlib.dll
I'm struggling to find a graceful way of handling these, so if anybody has some knowledge regarding this please share the approach.
Thanks in advance.
UPD:
I have tried to re-create the proxy with Begin/End pair and override the end method implementation in a partial class:
public partial class PingServiceClient : IPingServiceClient, PingService
{
public Task<bool> PingSync()
{
return Task.Factory.FromAsync(BeginPing(null, null), HandledEndPing);
}
private bool HandledEndPing(System.IAsyncResult result)
{
var res = false;
try
{
res = EndPing(result);
}
catch (Exception e)
{
;
}
return res;
}
}
Still the same barrage of messages in the output as before (the catch is working, though).

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I'm trying to invoke an instance using constructor.Invoke and also passing some parameters in it, but I'm getting
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Thanks
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If you want to 'unwrap' such exceptions as if you called the constructor without reflection you can do something like this:
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return myConstructorInfo.Invoke(parameters);
}
catch (TargetInvocationException e)
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// we could just throw e.InnerException but that would corrupt the
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// Constructor
public MainPage()
{
var bridge = new UnityBridge();
UnityApp.SetBridge(bridge);
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bridge.Control = DrawingSurfaceBackground; // <--- This line = crash
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The exact error goes like this:
TypeInitializationException was unhandled by user code
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Why does this happen? How do I fix this?
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I'm calling a delegate (dynamically configurable service) using:
public void CallService (Delegate service, IContext ctx)
{
var serviceArgs = CreateServiceArguments(service, ctx);
service.DynamicInvoke(serviceArgs);
}
At this point I want to catch all exceptions that occurred in the called service method, however, I do not want to catch any exception that occurred due to the DynamicInvoke call. E.g.:
service delegate throws DomainException -> catch the exception
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I hope it is clear what I'm asking. How to decide whether a catched exception originates from the DynamicInvoke call itself or from the underlying delegate.
Oh yeah, and: I cannot use the exception type to decide! It is completely possible that the service itself throws a MemberAccessException as well, because it could do some delegate stuff itself...
Oh yeah, and: I cannot use the exception type to decide! It is completely possible that the service itself throws a MemberAccessException as well, because it could do some delegate stuff itself...
Yes, you can use the exception type to decide. As mentioned in the documentation for Delegate.DynamicInvoke, if the method being called throws an exception (any exception), it will be wrapped in a TargetInvocationException. That is the exception you can catch, and you can then look at its InnerException property to know whether it's an exception you can deal with.

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I have a few lines of code that have worked fine for months, and now suddenly they do not work and I get a very strange error. Here is the function in question:
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SettingsCommand appSettings = new SettingsCommand("appSettings", "アプリ内設定", handler);
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A first chance exception of type 'System.FormatException' occurred in mscorlib.dll
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Interestingly, it looks like this has been reported to Microsoft as a bug in the OS. No idea what the resolution is going to be.

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