混合模式组件构建针对运行时的版本“V2.0.50727” [英] Mixed mode assembly is built against version ‘v2.0.50727′ of the runtime

问题描述

我收到以下异常：

混合模式组件构建针对运行时的版本V2.0.50727'，不能在4.0运行时无需附加配置信息加载。

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.

因为我想从我的WPF程序导出水晶报表...

as I was trying to export crystal report from my WPF program...

我添加了以下在App.config已经...

I have added the following in the app.config already...

<startup useLegacyV2RuntimeActivationPolicy="true">
  <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
</startup>
<runtime>
  <NetFx40_LegacySecurityPolicy enabled="true"/>
</runtime>

任何专家可以帮助????

Any experts can help????

参考我发现： <一href="http://www.davidmoore.info/2010/12/17/running-net-2-runtime-applications-under-the-net-4-runtime">http://www.davidmoore.info/2010/12/17/running-net-2-runtime-applications-under-the-net-4-runtime

推荐答案

尝试在配置节点使用这个确切的启动标签在你的app.config

Try to use this exact startup tag in your app.config under configuration node

<startup useLegacyV2RuntimeActivationPolicy="true">
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
    <requiredRuntime version="v4.0.20506" />
  </startup>

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