安装过程中日志报错

System.Exception: DbProviderFactories配置错误:MySql - web.config/configuration/system.data/DbProviderFactories
   在 ES.LibraryV2.Database.DataAccess.ESDatabase..ctor(DbProviderFactory A_0, String A_1, ESBaseDialect A_2, ESDriverBase A_3, Boolean A_4)
   在 ES.LibraryV2.Database.DataAccess.ESDatabaseFactory.OpenDatabase()
   在 g.c(String A_0)
   在 g.b(String A_0)
   在 ES.LibraryV2.Database.ESSessionFactoryManager.GetCurrentSession(String instanceName)
   在 ES.LibraryV2.Database.ESSqlQuery.GetListView[T]()
   在 ES.UIV2.WebControl.Grid.Handler.ESGridDataApiInitHandler.Process(HttpApplication httpApplication)
   在 ES.LibraryV2.Web.Handler.ESCommonModule.a(HttpApplication A_0, IList`1 A_1)
   在 ES.LibraryV2.Web.Handler.ESCommonModule.d(Object A_0, EventArgs A_1)
   在 System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   在 System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
   在 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

使用的是MYSQL数据库，应该怎么解决呢？