Complete minimal example reproducing the issue. This interface is pretty simple. Community. Forum. It only has two methods and each of its objects only carry two pieces of information which act as key value pairs. There is an extension method AddDataProtection which returns an IDataProtectionBuilder which itself exposes extension methods that you can chain together to configure various data protection options. This path may be on the local machine or may point to a UNC share. Logging" at "Show potential fixes" (CTRL + . Forum. The following Using statements are present Extensions. DataProtectionBuilderExtensions.PersistKeysToFileSystem Method (Microsoft.AspNetCore.DataProtection) Configures the data protection system to persist keys to the specified directory. Thanks Bruce, it is strange that VS 2019 does not recognize the need for "using Microsoft. How can I create a subfunction that calls Revit UIDocument. 2) Add using Microsoft.AspNetCore.DataProtection; to Startup.cs (or wherever you have the problem). Key management extensibility in ASP.NET Core How to fix : 'IDataProtectionBuilder' does not contain a definition for 'PersistKeysToDbContext' and no accessible extension 2) Add using Microsoft.AspNetCore.DataProtection; to Startup.cs (or wherever you have the problem). After upgrading from 5.10.3 to 6.0.0 , I immediately see numerous ObjectAssertions does not contain a definition for_ errors for the Contain, NotBeEmpty. DropDownList('System.Web.Mvc.HtmlHelper' does not contain a definition for 'DropDownList' and no extension method 'DropDownList' accepting a first argument of type 'System.Web.Mvc.HtmlHelper' could be found (are you missing a using directive or an assembly reference?) Microsoft Q&A is the best place to get answers to all your technical questions on Microsoft products and services. IDataProtectionKeyContext exposes the property DataProtectionKeys. 'IDataProtectionBuilder' does not contain a definition for 'PersistKeysToAWSSystemsManager' and no accessible extension method 'PersistKeysToAWSSystemsManager' accepting a first argument of type 'IDataProtectionBuilder' could be found (are you missing a using directive or an assembly reference?) builder.Services.AddDataProtection() .PersistKeysToDbContext<SampleDbContext> (); The preceding code stores the keys in the configured database. Thinking of this in SQL terms, we can create our table immediately: 1 2 3 4 CREATE TABLE [dbo]. Stack Exchange network consists of 180 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.. Visit Stack Exchange I am running into an error: does not contain a definition for 'Application' and no extension method. Thanks for any help! and NotContain CollectionAssertions. Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site To implement a key storage provider, the IXmlRepository interface must be used. 1) Make sure you have Microsoft.AspNetCore.DataProtection.Extensions + Microsoft.AspNetCore.DataProtection.EntityFrameworkCore installed (as references). Related; How to fix : 'IDataProtectionBuilder' does not contain a definition for 'PersistKeysToDbContext' and no accessible extension I am attempting to persist Keys to SQL using the PersistKeysToDbContext extension from services.AddDataProtection(). Q&A for professionals, academics, and students working within the systems development life cycle [DataProtectionKeys] ( Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site Accepted Answer 1) Make sure you have Microsoft.AspNetCore.DataProtection.Extensions + Microsoft.AspNetCore.DataProtection.EntityFrameworkCore installed (as references). How to fix : 'IDataProtectionBuilder' does not contain a, 'IDataProtectionBuilder' does not contain a definition for 'PersistKeysToDbContext' and no accessible extension method 'PersistKeysToDbContext' accepting a first argument of type 'IDataProtectionBuilder' could be found (are you missing a using directive or an 1) Make sure you have Microsoft.AspNetCore.DataProtection.Extensions + Microsoft.AspNetCore.DataProtection.EntityFrameworkCore installed (as references). Microsoft Q&A is the best place to get answers to all your technical questions on Microsoft products and services. 'IConfigurationBuilder' does not contain a definition for 'AddSystemsManager' and no accessible extension method 'AddSystemsManager' accepting a first argument of type 'IConfigurationBuilder' could be found (are you missing a using directive or an assembly reference?) For instance, to store keys at a UNC share instead of %LOCALAPPDATA% (the default), configure the system as follows: . This sub function is within the same namespace as 'ThisDocument'. 2) Add using Microsoft.AspNetCore.DataProtection;to Startup.cs (or wherever you have the problem). Community. 'IDataProtectionBuilder' does not contain a definition for 'ProtectKeysWithAzureKeyVault' MVC dotnet core 3.1 C# - List<string>' does not contain a definition for 'Items' System.Data.DataRowCollection' does not contain a definition for 'ToList' and no extension method 'ToList' accepting a first argument User1560815697 posted. How to fix : 'IDataProtectionBuilder' does not contain a definition for 'PersistKeysToDbContext' and no accessible extension I am attempting to persist Keys to SQL using the PersistKeysToDbContext extension from services.AddDataProtection(). ); Q&A for power users of web applications. C: . I am creating a sub routine class outside of ThisDocument to be called into ThisDocument. Add using Microsoft.AspNetCore.DataProtection; to Startup.cs. But I get this error: CS1061 'IDataProtectionBuilder' does not contain a definition for 'ProtectKeysWithAzureKeyVault' and no accessible extension method 'ProtectKeysWithAzureKeyVault' accepting a first argument of type 'IDataProtectionBuilder' could be found (are you missing a using directive or an assembly reference?) The database context being used must implement IDataProtectionKeyContext .