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POAssembly reference error on web site with same signature
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copied!<p>I've more than one ASP.NET 2.0 web site on IIS 6 and Windows Server 2003. Each site reference some DLLs: design, logic and so on. Each site is on a different ApplicationPool with default configuration about recycling techniques.</p> <p>Every DLL is strong named (not delayed) and has a version that never changes (2.0.0.0), all DLLs are placed in GAC.</p> <p>After I update a DLL in GAC (ie. MyLibrary.dll) that has changed in something (method, classes..) for the use in web-site "A", and after recycling only the "A" application pool, when I try to access to web-site "B" that reference the same DLL I get the common error about that DLL:</p> <blockquote> <p>The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)</p> </blockquote> <p>Of course nothing is changed in DLL rather than code, same strongkey, same version, culture. The error disappear over recycling "B" application pool, of course.</p> <p>What can generate a strange, <strong>RANDOM</strong> (I've to say!), behavior? There's something more, like hashing, that it's used to compare assemblies?</p> <h2>Addendum</h2> <ul> <li><a href="https://stackoverflow.com/users/37494/perpetualcoder">Perpetualcoder</a> asked me how DLLs are referenced, if with full qualified name, I think it is, here a line of web.config:</li> </ul> <blockquote> <p>assembly="MyNamespace.MyComponent, Version=2.0.0.0, Culture=neutral, PublicKeyToken=1234567890ASDFGH"</p> </blockquote>

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