flash messages in rails using turbolinks

I used turbolinks in my Rails 5 app. Now it is behaving as single page app which is good. But when I create a new user or sign up the flash errors are not showing up. In console there are errors but I need to show them using flash errors. Any suggestions would be very helpful. Thanks in advance.

POST http://localhost:3000/users/sign_in 401 (Unauthorized)
Rails.ajax @ rails-ujs.self-817d9a8cb641f7125060cb18fefada3f35339170767c4e003105f92d4c204e39.js?body=1:189
Rails.handleRemote @ rails-ujs.self-817d9a8cb641f7125060cb18fefada3f35339170767c4e003105f92d4c204e39.js?body=1:546
(anonymous) @ rails-ujs.self-817d9a8cb641f7125060cb18fefada3f35339170767c4e003105f92d4c204e39.js?body=1:146
VM707:1 Uncaught SyntaxError: Unexpected identifier
    at processResponse (rails-ujs.self-817d9a8cb641f7125060cb18fefada3f35339170767c4e003105f92d4c204e39.js?body=1:246)
    at rails-ujs.self-817d9a8cb641f7125060cb18fefada3f35339170767c4e003105f92d4c204e39.js?body=1:173
    at XMLHttpRequest.xhr.onreadystatechange (rails-ujs.self-817d9a8cb641f7125060cb18fefada3f35339170767c4e003105f92d4c204e39.js?body=1:23