無法找到請求的.Net框架數據提供程序。它可能沒有安裝。

我已經搜索了答案，但一直未能找到任何適合我的情況。無法找到請求的.Net框架數據提供程序。它可能沒有安裝。

，當我在本地運行該網站的工作完全正常，但我發佈後，當到Azure，如果我嘗試使用訪問它給了我下面的錯誤頁面的數據庫頁面：

Server Error in '/' Application. 
-------------------------------------------------------------------------------- 


Unable to find the requested .Net Framework Data Provider. It may not be installed. 
    Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.ArgumentException: Unable to find the requested .Net Framework Data Provider. It may not be installed. 

Source Error: 


An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. 

Stack Trace: 



[ArgumentException: Unable to find the requested .Net Framework Data Provider. It may not be installed.] 
    System.Data.Common.DbProviderFactories.GetFactory(String providerInvariantName) +1426271 
    System.Data.Entity.Internal.LazyInternalConnection.CreateConnectionFromProviderName(String providerInvariantName) +12 
    System.Data.Entity.Internal.LazyInternalConnection.InitializeFromConnectionStringSetting(ConnectionStringSettings appConfigConnection) +101 
    System.Data.Entity.Internal.LazyInternalConnection.TryInitializeFromAppConfig(String name, AppConfig config) +32 
    System.Data.Entity.Internal.LazyInternalConnection.Initialize() +127 
    System.Data.Entity.Internal.LazyInternalConnection.get_ProviderName() +13 
    System.Data.Entity.Internal.LazyInternalContext.InitializeContext() +346 
    System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type entityType) +18 
    System.Data.Entity.Internal.Linq.InternalSet`1.Initialize() +52 
    System.Data.Entity.Internal.Linq.InternalSet`1.get_InternalContext() +15 
    System.Data.Entity.Infrastructure.DbQuery`1.System.Linq.IQueryable.get_Provider() +37 
    System.Linq.Queryable.Where(IQueryable`1 source, Expression`1 predicate) +63 
    Dota2Finder.Controllers.HomeController.Generator(Int32 Start, Int32 End) +3287 
    lambda_method(Closure , ControllerBase , Object[]) +140 
    System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +14 
    System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +182 
    System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +27 
    System.Web.Mvc.Async.<>c__DisplayClass42.<BeginInvokeSynchronousActionMethod>b__41() +28 
    System.Web.Mvc.Async.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _) +10 
    System.Web.Mvc.Async.WrappedAsyncResult`1.End() +50 
    System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +32 
    System.Web.Mvc.Async.<>c__DisplayClass39.<BeginInvokeActionMethodWithFilters>b__33() +58 
    System.Web.Mvc.Async.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49() +225 
    System.Web.Mvc.Async.<>c__DisplayClass37.<BeginInvokeActionMethodWithFilters>b__36(IAsyncResult asyncResult) +10 
    System.Web.Mvc.Async.WrappedAsyncResult`1.End() +50 
    System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +34 
    System.Web.Mvc.Async.<>c__DisplayClass2a.<BeginInvokeAction>b__20() +24 
    System.Web.Mvc.Async.<>c__DisplayClass25.<BeginInvokeAction>b__22(IAsyncResult asyncResult) +99 
    System.Web.Mvc.Async.WrappedAsyncResult`1.End() +50 
    System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +27 
    System.Web.Mvc.<>c__DisplayClass1d.<BeginExecuteCore>b__18(IAsyncResult asyncResult) +14 
    System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +23 
    System.Web.Mvc.Async.WrappedAsyncResult`1.End() +55 
    System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +39 
    System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +23 
    System.Web.Mvc.Async.WrappedAsyncResult`1.End() +55 
    System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +29 
    System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult) +10 
    System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__3(IAsyncResult asyncResult) +25 
    System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +23 
    System.Web.Mvc.Async.WrappedAsyncResult`1.End() +55 
    System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +31 
    System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +9 
    System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +9631764 
    System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155

這裏是我的用戶名/密碼/服務器連接字符串，刪除：

<add name="DefaultConnection" providerName="System.Data.SqlClient" connectionString="Server=<server>;Database=ELO;User ID=<username>;Password=<password>;Trusted_Connection=False;Encrypt=True;Connection Timeout=30;" />

雖然我不明白爲什麼它會在本地而不是工作在Azure上。該網站和SQL數據庫託管在同一個帳戶上。

來源

2013-10-20 kgst

對於Azure的，我覺得我需要在連接字符串中的格式如下：

<add name="connectionName" connectionString="Data Source=servername.database.windows.net;initial catalog=databasename;persist security info=True;user id=userid;password=pwd;MultipleActiveResultSets=True;App=EntityFramework" providerName="System.Data.SqlClient" />

關鍵的區別似乎是Data Source=。

正如其他地方所建議的那樣，刪除提供程序名稱並不是一種解決方案，因爲它只會出現「providerName is missing」錯誤。

來源

2013-12-12 15:29:51

我通過在Azure門戶中設置連接字符串而不是依賴上傳的web.config來解決此問題。這也更安全，因爲我不必在Web.Release.config文件中擁有「生產」數據庫連接的副本。連接字符串位於您網站底部附近的配置選項卡下的天藍色管理門戶中。

來源

2015-12-31 00:14:29

無法找到請求的.Net框架數據提供程序。它可能沒有安裝。

回答

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