Asp.net更新数据库

到目前为止，我的项目由一个简单的，空的asp.net项目解决方案组成，除了visual studio在开始一个新项目时提供的东西以外，什么都没有使用。Asp.net更新数据库

我第一次使用迁移来帮助我的发展。到目前为止，我已经启用了迁移，并通过包管理器控制台添加了初始迁移。我做了唯一的变化是修改我的web.config来看待这样一个新的数据源：

<connectionStrings> 
    <add name="DefaultConnection" connectionString="Data Source=SYS-VIS-15\SQLEXPRESS;AttachDbFilename=|DataDirectory|\aspnet-GiggHub-20160704033906.mdf;Initial Catalog=aspnet-GiggHub-20160704033906;Integrated Security=True" providerName="System.Data.SqlClient" /> 
    </connectionStrings>

现在，当我去通过运行包管理器控制台“更新数据库”更新我的数据库我得到以下错误：

Directory lookup for the file "C:\Users\Admin\Source\Workspaces\GigHub\GiggHub\GiggHub\App_Data\aspnet-GiggHub-20160704033906.mdf" failed with the operating system error 5(Access is denied.). CREATE DATABASE failed. Some file names listed could not be created. Check related errors.

我检查我的所有权限，我所知道的，但不能看到什么，我需要勾选或取消勾选克服这种错误。有谁知道该怎么办？

完整文件的输出是所有如下：

Specify the '-Verbose' flag to view the SQL statements being applied to the target database. 
System.Data.SqlClient.SqlException (0x80131904): Directory lookup for the file "C:\Users\Admin\Source\Workspaces\GigHub\GiggHub\GiggHub\App_Data\aspnet-GiggHub-20160704033906.mdf" failed with the operating system error 5(Access is denied.). 
CREATE DATABASE failed. Some file names listed could not be created. Check related errors. 
    at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) 
    at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) 
    at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) 
    at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady) 
    at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite) 
    at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean asyncWrite) 
    at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() 
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.<NonQuery>b__0(DbCommand t, DbCommandInterceptionContext`1 c) 
    at System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext,TResult](TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed) 
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.NonQuery(DbCommand command, DbCommandInterceptionContext interceptionContext) 
    at System.Data.Entity.SqlServer.SqlProviderServices.<>c__DisplayClass1a.<CreateDatabaseFromScript>b__19(DbConnection conn) 
    at System.Data.Entity.SqlServer.SqlProviderServices.<>c__DisplayClass33.<UsingConnection>b__32() 
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.<>c__DisplayClass1.<Execute>b__0() 
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation) 
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Action operation) 
    at System.Data.Entity.SqlServer.SqlProviderServices.UsingConnection(DbConnection sqlConnection, Action`1 act) 
    at System.Data.Entity.SqlServer.SqlProviderServices.UsingMasterConnection(DbConnection sqlConnection, Action`1 act) 
    at System.Data.Entity.SqlServer.SqlProviderServices.CreateDatabaseFromScript(Nullable`1 commandTimeout, DbConnection sqlConnection, String createDatabaseScript) 
    at System.Data.Entity.SqlServer.SqlProviderServices.DbCreateDatabase(DbConnection connection, Nullable`1 commandTimeout, StoreItemCollection storeItemCollection) 
    at System.Data.Entity.Core.Common.DbProviderServices.CreateDatabase(DbConnection connection, Nullable`1 commandTimeout, StoreItemCollection storeItemCollection) 
    at System.Data.Entity.Core.Objects.ObjectContext.CreateDatabase() 
    at System.Data.Entity.Migrations.Utilities.DatabaseCreator.Create(DbConnection connection) 
    at System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase) 
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.EnsureDatabaseExists(Action mustSucceedToKeepDatabase) 
    at System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration) 
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.Update(String targetMigration) 
    at System.Data.Entity.Migrations.Design.ToolingFacade.UpdateRunner.Run() 
    at System.AppDomain.DoCallBack(CrossAppDomainDelegate callBackDelegate) 
    at System.AppDomain.DoCallBack(CrossAppDomainDelegate callBackDelegate) 
    at System.Data.Entity.Migrations.Design.ToolingFacade.Run(BaseRunner runner) 
    at System.Data.Entity.Migrations.Design.ToolingFacade.Update(String targetMigration, Boolean force) 
    at System.Data.Entity.Migrations.UpdateDatabaseCommand.<>c__DisplayClass2.<.ctor>b__0() 
    at System.Data.Entity.Migrations.MigrationsDomainCommand.Execute(Action command) 
ClientConnectionId:9b2f396d-dadf-4d0b-a334-1197e86beed1 
Error Number:5133,State:1,Class:16

来源

2016-07-05 N0xus

你能使用Management Studio连接到数据库？ – Hakunamatata

提供一些代码进行分析，以便我们可以回答你的问题。 –

你说你只安装了SSMS，这是否意味着你没有安装数据库引擎？另外当你说'或在数据库'上，你的意思是在EF设计师的实体模型？ –

在上查看Visual Studio中点击 - > SQL Server的对象资源管理器 - >展开SQL服务器 node.If你没有看到（的LocalDB）在该列表意味着你没有安装它。

要安装本地数据库看看this SO质疑

来源

2016-07-05 08:50:15

Asp.net更新数据库

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