请考虑使用 app.config 将程序集“System.Data, Culture=neutral, PublicKeyToken=969db8053d3322ac, Retargetable=Yes”从版本“2.0.0.0”[]重新映射

做mobile开发编译输出提示：

请考虑使用 app.config 将程序集“System.Data, Culture=neutral, PublicKeyToken=969db8053d3322ac, Retargetable=Yes”从版本“2.0.0.0”[]重新映射到版本“3.5.0.0”

 

只需在项目中加入 App.Config 文件，文件内容如下即可：

 

代码

<? xml version="1.0" encoding="utf-8"  ?>
< configuration >
     < runtime >
         < assemblyBinding >
             < dependentAssembly >
                 < assemblyIdentity  name = "System.Data"  culture = "neutral"  publicKeyToken = "969db8053d3322ac"  Retargetable = "Yes" />
                 < bindingRedirect  oldVersion = "2.0.0.0"  newVersion = "3.5.0.0" />
             </ dependentAssembly >
             < dependentAssembly >
                 < assemblyIdentity  name = "System"  culture = "neutral"  publicKeyToken ="969db8053d3322ac"  Retargetable = "Yes" />
                 < bindingRedirect  oldVersion = "2.0.0.0"  newVersion = "3.5.0.0"   />
             </ dependentAssembly >
             < dependentAssembly >
                 < assemblyIdentity  name = "System.Xml"  culture = "neutral"  publicKeyToken ="969db8053d3322ac"  Retargetable = "Yes" />
                 < bindingRedirect  oldVersion = "2.0.0.0"  newVersion = "3.5.0.0"   />
             </ dependentAssembly >
         </ assemblyBinding >
     </ runtime >
</ configuration >

 

个人猜测，可能是运行时检测到安装有多个版本，推荐用新的版本运行.