На вот попробуй

CREATE TABLE [dbo].[AspNetRoles] ( 
  [Id] NVARCHAR(128) NOT NULL,
  [Name] NVARCHAR(256) NULL,
  [NormalizedName] NVARCHAR(256) NULL,
  [ConcurrencyStamp] NVARCHAR(MAX) NULL,
  CONSTRAINT [PK_AspNetRoles] PRIMARY KEY ([Id])
);
CREATE UNIQUE INDEX [RoleNameIndex] 
ON [dbo].[AspNetRoles] (
  [NormalizedName] ASC
);
INSERT INTO [dbo].[AspNetRoles] ([Id], [Name], [NormalizedName], [ConcurrencyStamp]) VALUES 
    ('27163748-00f8-4725-8d4e-9dce62923f2c', 'TestAdmin', 'TESTADMIN', 'af32e894-1def-4665-b7be-dff048774f1a');
INSERT INTO [dbo].[AspNetRoles] ([Id], [Name], [NormalizedName], [ConcurrencyStamp]) VALUES 
    ('274e474d-a20d-48a6-ab9a-f260a88fec43', 'TestStudents', 'TESTSTUDENTS', 'e8d8fa37-89b5-4f9d-bdc4-476111593ce9');
INSERT INTO [dbo].[AspNetRoles] ([Id], [Name], [NormalizedName], [ConcurrencyStamp]) VALUES 
    ('274e474d-a20d-48a6-ab9a-f260a88fec43','abs','abs','e8d8fa37-89b5-4f9d-bdc4-476111593ce8');

[Microsoft][ODBC Driver 17 for SQL Server][SQL Server]Violation of PRIMARY KEY constraint 'PK_AspNetRoles'. Cannot insert duplicate key in object 'dbo.AspNetRoles'. The duplicate key value is (274e474d-a20d-48a6-ab9a-f260a88fec43).