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Operation could destabilize the runtime

Last post 09-13-2007, 2:45 AM by RichardLaw. 2 replies.


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09-09-2007, 6:03 AM 33386

RichardLaw
Joined on 06-26-2007
Posts 16

Operation could destabilize the runtime

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I thought I’d finished my web site – all working fine locally. But when I uploaded it to live, I get the error ‘Operation could destabilize the runtime’ when I try and enter a room.

I’m using Visual Studio 2005, ASP.NET 2.0 and build 3.1 of the cuteChat (standalone)

Please help asap, as the project was due to be completed last week.

Many thanks
Richard

09-13-2007, 2:45 AM 33521 in reply to 33485

RichardLaw
Joined on 06-26-2007
Posts 16

Re: Operation could destabilize the runtime

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I’ve been working with the guys from my hosting company to try and find out which parts of the custom medium trust are causing the error. This morning I received this mail which explains the problem:

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Hello Richard,
I have been doing some testing with this - I did find that the default Medium Trust policy file does not throw the error, so I worked to find what in the custom Medium Trust policy file was causing the error.

I found that any trust policy (apart from "Full" which uses an internal policy) which allows Reflection causes the error - simply adding the following information to the Medium Trust policy file demonstrates this:

SecurityClass Name="ReflectionPermission" Description="System.Security.Permissions.ReflectionPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"

IPermission class="ReflectionPermission" version="1" Unrestricted="true"

If you take this information to the developer I am sure they will be able to reproduce the problem and correct it, since allowing Reflection will not cause errors like these - it has to be something in the code.

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So the next big question is: is there anything you can do to help?

Many thanks
Richard