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POC# plugin system binary compatibility issues
 

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  1. POC# plugin system binary compatibility issues
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    <p>I've implemented a plugin system in .NET. The base library implements basic classes and interfaces exposed to plugins, the plugin libraries links the base library for using exposed classes and interfaces.</p> <p>The problem I'm facing is that a (simple) recompilation of the base library (with or without modifications) cause the plugins not able to being loaded, giving the exception message:</p> <pre><code> "Could not load file or assembly 'BaseLibrary, Version=0.0.1.68, Culture=neutral, PublicKeyToken=7b445b12e635292c' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)" </code></pre> <p>This problem is solved by compiling all at once the base library and the plugin libraries, but this is not very comfortable during development, since I modify base library quite frequently in this phase.</p> <p>If there any method to "relax" binary matching?</p> <p>Is it possible that the base library assembly information (quoted below) could be the casue of the problem?</p> <pre><code> [assembly: AssemblyVersion("0.0.1.*")] </code></pre> <p>I forgot to mention that assemblies are signed.</p> <hr> <p>Assemblies are loaded using the following routine</p> <pre><code>Assembly hLibrary = Assembly.LoadFile(pPath); Type plugImageCodecFactoryType = hLibrary.GetType("Derm.ImageCodecPluginFactory", true, false); object plugImageCodecFactory = Activator.CreateInstance(plugImageCodecFactoryType); object plugInstance; MethodInfo plugFactoryCreate = plugImageCodecFactoryType.GetMethod("CreatePlugin", BindingFlags.Instance|BindingFlags.Public); plugInstance = plugFactoryCreate.Invoke(plugImageCodecFactory, null); if (plugInstance is IImageCodecPlugin) RegisterPlugin((IImageCodecPlugin)plugInstance); </code></pre>
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