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POMixed mode assembly is built against old version of the runtime and cannot be loaded without additional configuration
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copied!<p>I cannot build a project, written by an ex-employee, on my Windows 7 workstation. It works perfectly fine on the old XP machine he used and I have an exact copy.</p> <blockquote> <p>Error 1 Mixed mode assembly is built against version 'v2.0.50727' of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information. C:\Working\Scan\v2.5.9.99\ConfigurationTool\ConfigurationTool\SGEN ConfigurationTool</p> </blockquote> <p>I have already searched for a solution to this error message but I have found that the solutions provided do not resolve the problem :(</p> <p>This is how my config file started off, useLegacyV2RuntimeActivationPolicy is already present.</p> <pre><code><configuration> <startup useLegacyV2RuntimeActivationPolicy="true"> <supportedRuntime version="v4.0"/> <requiredRuntime version="v4.0.20506"/> </startup> </configuration> </code></pre> <p>I have tried every suggested combination as well as different profile for full and client versions, as outlined in this thread with no results.</p> <p><a href="https://stackoverflow.com/questions/2455654/what-additional-configuration-is-necessary-to-reference-a-net-2-0-mixed-mode">What 'additional configuration' is necessary to reference a .NET 2.0 mixed mode assembly in a .NET 4.0 project?</a></p> <p>Has anyone got a fix or any ideas on what could be causing the difference between the copies on different machines?</p>

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