Configuration.GetConnectionString("DatabaseConnection")));No databaseprovider has been configured for this DbContext.A provider can be configured by overriding the Db
浏览 3提问于2017-09-28得票数 0
回答已采纳
(No database provider has been configured for this DbContext.A provider can be configured by overriding the DbContext.OnConfiguring method or by using AddDbContext.)
---- System.InvalidOperationException : No databa
浏览 3提问于2019-11-22得票数 0
System.InvalidOperationException: No database provider has been configured for this DbContext.A provider can be configured by overriding the DbContext.OnConfiguring method or by using AddDbContexton the application serv
浏览 2提问于2020-10-10得票数 1
回答已采纳
在这里，我设置了一些从Anguar2到数据库的Db连接，但是当我试图访问数据库时，我得到了Additional information: No database provider has been configuredfor this DbContext.A provider can be configured by overriding the DbContext.OnConfiguring method or by using A
浏览 4提问于2017-04-04得票数 0
回答已采纳
Source=MyDatabase.db"));错误消息： HResult=0x80131509
Message=No databaseprovider has been configured for this DbContext.A provider can be configured by overriding the DbContext
浏览 0提问于2018-02-05得票数 1
回答已采纳
误差
Finding DbContext classes...System.InvalidOperationException: No database provider has been configured for this DbContext.A provider can be configured by overriding
浏览 2提问于2016-11-22得票数 7
回答已采纳
3回答
serviceProvider.GetRequiredService<ApplicationDbContext>(); if (context.Database.IsSqlServerMicrosoft.EntityFrameworkCore: No database provider has been configured for this DbCont
浏览 16提问于2020-07-21得票数 3
This is often because no database provider has been configured for this DbContext.A provider can be configured by overriding the 'DbContext.OnConfiguring' method or by using 'AddDbContext' on the app
浏览 16提问于2022-05-16得票数 0
(commandText);这会抛出错误 this DbContext.A provider can be configured by overriding the 'DbContext.OnConfiguring'
浏览 2提问于2020-12-27得票数 0
回答已采纳
我正在尝试使用.NET Core2.2和Angular构建我的数据库，并且遇到了这个错误： No database provider has been configured for this DbContextA provider can be configured by overriding the DbContext.OnConfiguring method or by using AddDbContexton the appli
浏览 15提问于2019-05-29得票数 0
回答已采纳
provider has been configured for this DbContext.A provider can be configured by overriding the DbContext.OnConfiguring method or by using AddDbContexton the application service provider.provider has <e
浏览 0提问于2019-05-26得票数 0
回答已采纳
connectionStringSecret.Value);当我试图将HTTP注入到我的控制器(将dbContext注入控制器)时，我会得到以下错误：for this DbContext.A provider can be configured by overriding
浏览 0提问于2018-11-01得票数 0
回答已采纳
2回答
This is often because no database provider has been configured for this DbContext.A provider can be configured by overriding the 'DbContext.OnConfiguring' method or by using 'AddDbContext' on the app
浏览 14提问于2022-04-08得票数 2
InvalidOperationException: No database provider has been configured for this DbContext.A provider can be configured by overriding the DbContext.OnConfiguring method or by using AddDbContexton the application service <em
浏览 2提问于2020-01-22得票数 1
回答已采纳
1回答
我已经跟踪了，但现在收到了以下错误：
InvalidOperationException: No database provider has been configured for this DbContextA provider can be configured by overriding the DbContext.OnConfiguring method or by using AddDbContexton the appli
浏览 1提问于2016-05-04得票数 1
回答已采纳
2回答
if optionsBuilder.IsConfigured <> false then
optionsBuilder.UseInMemoryDatabase("database_nameprovider has been configured for this DbContext.A provider can be configured by overriding the DbConte
浏览 1提问于2019-04-15得票数 1
回答已采纳
这是一个错误：
No database provider has been configured for this DbContext.A provider can be configured by overriding the DbContext.OnConfiguring method or by using AddDbContexton the application service provider.acce
浏览 2提问于2016-10-11得票数 2
回答已采纳
This is often because no database provider has been configured for this DbContext.A provider can be configured by overriding the DbContext.OnConfiguring method or by using AddDbContexton the application service prov
浏览 6提问于2020-08-19得票数 1
回答已采纳
1回答
在设置了context = new ()之后)： HResult=0x80131509
Message=No databaseprovider has been configured for this DbContext.A provider can be configured by overriding the DbContext.OnCon
浏览 1提问于2017-09-18得票数 0
回答已采纳
PropertyManagementDataMappingProfile());}Message:
System.InvalidOperationException : No databaseprovider has been configured for this DbContext.A provider can be configured by overriding the
浏览 0提问于2020-04-30得票数 0
回答已采纳
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