mysql connector 安装失败_mysql-connector-net-6.6.4 安装失败，求解释！

在mysql官网上下载了 mysql-connector-net-6.6.4 .msi但是在本地安装失败！

失败日志如下：

ction 17:03:24: VS11_UpdatePackageFile.

SFXCA: Extracting custom action to temporary directory: C:\WINDOWS\Installer\MSI9D.tmp-\

SFXCA: Binding to CLR version v2.0.50727

Calling custom action MySql.ConnectorInstaller!MySql.ConnectorInstaller.CustomActions.UpdateFlagPackagesFileForVS2012

Error: could not load custom action class MySql.ConnectorInstaller.CustomActions from assembly: MySql.ConnectorInstaller

System.BadImageFormatException: Could not load file or assembly 'MySql.ConnectorInstaller' or one of its dependencies. This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded.

File name: 'MySql.ConnectorInstaller'

at System.Reflection.Assembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection)

at System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)

at System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)

at System.AppDomain.Load(String assemblyString)

at Microsoft.Deployment.WindowsInstaller.CustomActionProxy.GetCustomActionMethod(Session session, String assemblyName, String className, String methodName)

我使用的C# 和数据库之间的操作！