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POASP.NET MVC3 runtime error when trying to load a 64-bit C++/CLI assembly
 

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    <p><strong>Update:</strong> Question updated after figuring out what was causing the ASP.NET/Razor errors.</p> <p>I have an ASP.NET MVC3 project that references a C++/CLI project which is configured to compile as x64 because it has to run in Windows Azure (No AnyCPU setting for C++/CLI).</p> <p>The problem is that as soon as I configure the platform settings of the C++/CLI project to x64 (In Build->Configuration Manager), build the solution, then open a random view I get a warning about ASP.NET trying to load an incorrect format assembly followed by a bunch of errors caused by Razor syntax errors.</p> <p>Screenshot of some random View:<br> <img src="https://i.stack.imgur.com/NtSFz.png" alt="enter image description here"></p> <p>Screenshot of the log: <img src="https://i.stack.imgur.com/BG8Ml.png" alt="VS2010 Error List"></p> <p>The main error is:</p> <blockquote> <p>Warning: ASP.NET runtime error: Could not load file or assembly 'LZGEncoder' or one of its dependencies. An attempt was made to load a program with an incorrect format.</p> </blockquote> <p>Even though this happens, I can still compile and run the solution, and use the referenced C++/CLI assembly just fine, so this isn't blocking development but it's a real nuisance (especially when it blocks IntelliSense and I can't see if I have any <em>real</em> errors in my Razor code).</p> <p>If I reset the platform of my C++/CLI to Win32 then all the errors disappear, but ofcourse when running the solution I get the same incorrect format error but in my MVC3 web-page. </p> <p>Is this a bug in ASP.NET or have I forgotten to configure something? I was able to reproduce the errors at work and at home (with and without Azure), so I don't think it's my VS2010 installation. Thanks.</p> <p><strong>Update:</strong><br> For now I created a C# wrapper directly calling the C library using P/Invoke, and it works great, so I don't even need the C++/CLI wrapper anymore, but that doesn't answer this question so I'll keep it open.</p> <p>I'm suspecting it's a bug in MVC3/Razor or VS2010 though, both which have new versions coming out soon.</p>
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