IdentityResourceDataSeeder should also add role identity resource.

modules/identityserver/src/Volo.Abp.IdentityServer.Domain/Volo/Abp/IdentityServer/IdentityResources/IdentityResourceDataSeeder.cs

@@ -23,13 +23,14 @@ namespace Volo.Abp.IdentityServer.IdentityResources
 
         public virtual async Task CreateStandardResourcesAsync()
         {
-            var resources = new IdentityServer4.Models.IdentityResource[]
+            var resources = new[]
             {
                 new IdentityServer4.Models.IdentityResources.OpenId(),
                 new IdentityServer4.Models.IdentityResources.Profile(),
                 new IdentityServer4.Models.IdentityResources.Email(),
                 new IdentityServer4.Models.IdentityResources.Address(),
-                new IdentityServer4.Models.IdentityResources.Phone()
+                new IdentityServer4.Models.IdentityResources.Phone(),
+                new IdentityServer4.Models.IdentityResource("role", "Roles of the user", new[] {"role"})
             };
 
             foreach (var resource in resources)