Fix potential bugs

aspnet-core/modules/common/LINGYUN.Abp.Identity.HttpApi/LINGYUN/Abp/Identity/IOrganizationUnitController.cs

@@ -12,7 +12,7 @@ using Volo.Abp.Identity;
 namespace LINGYUN.Abp.Identity
 {
     [RemoteService(Name = IdentityRemoteServiceConsts.RemoteServiceName)]
-    [Area("organization-unit")]
+    [Area("identity")]
     [ControllerName("organization-unit")]
     [Route("api/identity/organization-unit")]
     public class IOrganizationUnitController : AbpController, IOrganizationUnitAppService

aspnet-core/modules/identity/LINGYUN.Abp.Identity.Application.Contracts/LINGYUN/Abp/Identity/IdentityPermissionDefinitionProvider.cs

@@ -9,13 +9,15 @@ namespace LINGYUN.Abp.Identity
         public override void Define(IPermissionDefinitionContext context)
         {
             var identityGroup = context.GetGroupOrNull(Volo.Abp.Identity.IdentityPermissions.GroupName);
-            
-            var origanizationUnitPermission = identityGroup.AddPermission(IdentityPermissions.OrganizationUnits.Default, L("Permission:OrganizationUnitManagement"));
-            origanizationUnitPermission.AddChild(IdentityPermissions.OrganizationUnits.Create, L("Permission:Create"));
-            origanizationUnitPermission.AddChild(IdentityPermissions.OrganizationUnits.Update, L("Permission:Edit"));
-            origanizationUnitPermission.AddChild(IdentityPermissions.OrganizationUnits.Delete, L("Permission:Delete"));
-            origanizationUnitPermission.AddChild(IdentityPermissions.OrganizationUnits.ManageRoles, L("Permission:ChangeRoles"));
-            origanizationUnitPermission.AddChild(IdentityPermissions.OrganizationUnits.ManageUsers, L("Permission:ChangeUsers"));
+            if (identityGroup != null)
+            {
+                var origanizationUnitPermission = identityGroup.AddPermission(IdentityPermissions.OrganizationUnits.Default, L("Permission:OrganizationUnitManagement"));
+                origanizationUnitPermission.AddChild(IdentityPermissions.OrganizationUnits.Create, L("Permission:Create"));
+                origanizationUnitPermission.AddChild(IdentityPermissions.OrganizationUnits.Update, L("Permission:Edit"));
+                origanizationUnitPermission.AddChild(IdentityPermissions.OrganizationUnits.Delete, L("Permission:Delete"));
+                origanizationUnitPermission.AddChild(IdentityPermissions.OrganizationUnits.ManageRoles, L("Permission:ChangeRoles"));
+                origanizationUnitPermission.AddChild(IdentityPermissions.OrganizationUnits.ManageUsers, L("Permission:ChangeUsers"));
+            }
         }
 
         private static LocalizableString L(string name)