项目启动出错

从官网（https://abp.io/）下载项目后，运行；

错误如下：

SqlException: Cannot open database "BookStore" requested by the login. The login failed.
Login failed for user 'SJ-PC\Administrator'.

Microsoft.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, uint waitForMultipleObjectsTimeout, bool allowCreate, bool onlyOneCheckConnection, DbConnectionOptions userOptions, out DbConnectionInternal connection)

InvalidOperationException: An exception has been raised that is likely due to a transient failure. Consider enabling transient error resiliency by adding 'EnableRetryOnFailure' to the 'UseSqlServer' call.

Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerExecutionStrategy.ExecuteAsync(TState state, Func> operation, Func>> verifySucceeded, CancellationToken cancellationToken)

解决方案：  检查一下链接字符串；