'DbContextOptionsBuilder' does not contain a definition for 'UseSqlServer' 'Microsoft.EntityFrameworkCore.Query.Internal.AnonymousObject' "Could not parse the configuration file..." when adding or updating to a model in EF 6 "Multipli...
Error CS1061 'DbContextOptionsBuilder' does not contain a definition for 'UseSqlServer' and no extension method 'UseSqlServer' accepting a first argument of type 'DbContextOptionsBuilder' could be found (are you missing a using directive or an assembly reference?) ...
I cannot use NodaTime() in my code. Getting the below error. 'NpgsqlDbContextOptionsBuilder' does not contain a definition for 'NodaTime' and no extension method 'NodaTime' accepting a first argument of type 'NpgsqlDbContextOptionsBuilde...
I get the error : 'SchoolDbContext' does not contain a definition for 'SaveChanges' and no extension method 'SaveChanges' accepting a first argument of type 'SchoolDbContext' could be found (are you missing a using directive or an assembly reference?) ...
我在使用dotnet sdk 2.1.1时遇到了同样的问题，它应该将所有基本依赖项都 Package 在Microsoft.Asp...
There was an error creating a DbContext :(10,19): error CS1001: Identifier expected (11,6): error CS1513: } expected (12,44): error CS8124: Tuple must contain at least two elements. (13,13): error CS1022: Type or namespace definition, or end-of-file expected at Microsoft.Visual...
HttpContext' does not contain a definition for 'GetOwinContext' 'System.Web.Mvc.Controller.File(byte[], string)' is a 'method', which is not valid in the given context 'System.Web.Mvc.HtmlHelper' does not contain a definition for 'Calendar' 'System.Web.Mvc.HtmlHelper' does not contain...
'HttpResponse' does not contain a definition for 'Cache' and no accessible extension method 'Cache' accepting a first argument of type 'HttpResponse' could be found (are you missing a using directive or an assembly reference?) 'IEnumerable<>' does not contain a definition for '', no extens...
'HttpResponse' does not contain a definition for 'Cache' and no accessible extension method 'Cache' accepting a first argument of type 'HttpResponse' could be found (are you missing a using directive or an assembly reference?) 'IEnumerable<>' does not contain a definition for '', no extens...
'HttpContext' does not contain a definition for 'Current' 'HttpResponse' does not contain a definition for 'Cache' and no accessible extension method 'Cache' accepting a first argument of type 'HttpResponse' could be found (are you missing a using directive or an assembly reference?) 'IEnumer...