Message for api files and groups.

lib/api/commits.rb

@@ -108,7 +108,7 @@ module API
         if note.save
           present note, with: Entities::CommitNote
         else
-          error!("Failed to save note", 422)
+          render_api_error!("Failed to save note #{note.errors.messages}", 422)
         end
       end
     end

lib/api/files.rb

@@ -35,7 +35,7 @@ module API
         file_path = attrs.delete(:file_path)
         commit = user_project.repository.commit(ref)
-        not_found! "Commit" unless commit
+        not_found! 'Commit' unless commit
         blob = user_project.repository.blob_at(commit.sha, file_path)
@@ -53,7 +53,7 @@ module API
             commit_id: commit.id,
           }
         else
-          render_api_error!('File not found', 404)
+          not_found! 'File'
         end
       end

lib/api/groups.rb

@@ -54,7 +54,7 @@ module API
         if @group.save
           present @group, with: Entities::Group
         else
-          not_found!
+          render_api_error!("Failed to save group #{@group.errors.messages}", 422)
         end
       end
@@ -97,7 +97,7 @@ module API
         if result
           present group
         else
-          not_found!
+          render_api_error!("Failed to transfer project #{project.errors.messages}", 422)
         end
       end
     end