Can not deploy my rails app to heroku after getting asset not present in asset pipeline error

Question

My app works fine on my localhost but now am trying to deploy it to heroku and it says:

We're sorry, but something went wrong.
If you are the application owner check the logs for more information.

Log file:

2017-07-28T06:32:05.150511+00:00 app[web.1]: F, [2017-07-28T06:32:05.150434 #4] FATAL -- : [333bb637-4f97-41fa-8b90-60452df2b4fd]   
2017-07-28T06:32:05.150586+00:00 app[web.1]: F, [2017-07-28T06:32:05.150519 #4] FATAL -- : [333bb637-4f97-41fa-8b90-60452df2b4fd] ActionView::Template::Error (The asset "landingherodrink.jpeg" is not present in the asset pipeline.):
2017-07-28T06:32:05.150803+00:00 app[web.1]: F, [2017-07-28T06:32:05.150736 #4] FATAL -- : [333bb637-4f97-41fa-8b90-60452df2b4fd]     10:                 </div>
2017-07-28T06:32:05.150806+00:00 app[web.1]: [333bb637-4f97-41fa-8b90-60452df2b4fd]     11:         </div>
2017-07-28T06:32:05.150806+00:00 app[web.1]: [333bb637-4f97-41fa-8b90-60452df2b4fd]     12:         <div id="landingherodrink">
2017-07-28T06:32:05.150808+00:00 app[web.1]: [333bb637-4f97-41fa-8b90-60452df2b4fd]     13:                 <%= image_tag("landingherodrink.jpeg") %>
2017-07-28T06:32:05.150808+00:00 app[web.1]: [333bb637-4f97-41fa-8b90-60452df2b4fd]     14:         </div>
2017-07-28T06:32:05.150809+00:00 app[web.1]: [333bb637-4f97-41fa-8b90-60452df2b4fd]     15:         <%= render 'footermenu/footermenu' %>      
2017-07-28T06:32:05.150809+00:00 app[web.1]: [333bb637-4f97-41fa-8b90-60452df2b4fd]     16: </body>
2017-07-28T06:32:05.150867+00:00 app[web.1]: F, [2017-07-28T06:32:05.150807 #4] FATAL -- : [333bb637-4f97-41fa-8b90-60452df2b4fd]   
2017-07-28T06:32:05.150971+00:00 app[web.1]: F, [2017-07-28T06:32:05.150889 #4] FATAL -- : [333bb637-4f97-41fa-8b90-60452df2b4fd] app/views/landingpage/index.html.erb:13:in `_app_views_landingpage_index_html_erb__2117924159609624554_32934860'
2017-07-28T06:43:04.237065+00:00 heroku[router]: at=info method=GET path="/" host=thawing-cliffs-75380.herokuapp.com request_id=d535ef51-8a33-41dc-b820-50e9a43ca635 fwd="207.38.188.8" dyno=web.1 connect=0ms service=6ms status=500 bytes=1827 protocol=https
2017-07-28T06:43:04.231745+00:00 app[web.1]: I, [2017-07-28T06:43:04.231639 #4]  INFO -- : [d535ef51-8a33-41dc-b820-50e9a43ca635] Started GET "/" for 207.38.188.8 at 2017-07-28 06:43:04 +0000
2017-07-28T06:43:04.232703+00:00 app[web.1]: I, [2017-07-28T06:43:04.232613 #4]  INFO -- : [d535ef51-8a33-41dc-b820-50e9a43ca635] Processing by LandingpageController#index as HTML
2017-07-28T06:43:04.233549+00:00 app[web.1]: I, [2017-07-28T06:43:04.233492 #4]  INFO -- : [d535ef51-8a33-41dc-b820-50e9a43ca635]   Rendering landingpage/index.html.erb within layouts/application
2017-07-28T06:43:04.234214+00:00 app[web.1]: I, [2017-07-28T06:43:04.234157 #4]  INFO -- : [d535ef51-8a33-41dc-b820-50e9a43ca635]   Rendered navmain/_navmain.html.erb (0.4ms)
2017-07-28T06:43:04.235218+00:00 app[web.1]: I, [2017-07-28T06:43:04.235161 #4]  INFO -- : [d535ef51-8a33-41dc-b820-50e9a43ca635]   Rendered landingpage/index.html.erb within layouts/application (1.6ms)
2017-07-28T06:43:04.235358+00:00 app[web.1]: I, [2017-07-28T06:43:04.235306 #4]  INFO -- : [d535ef51-8a33-41dc-b820-50e9a43ca635] Completed 500 Internal Server Error in 3ms
2017-07-28T06:43:04.235988+00:00 app[web.1]: F, [2017-07-28T06:43:04.235934 #4] FATAL -- : [d535ef51-8a33-41dc-b820-50e9a43ca635]   
2017-07-28T06:43:04.236030+00:00 app[web.1]: F, [2017-07-28T06:43:04.235987 #4] FATAL -- : [d535ef51-8a33-41dc-b820-50e9a43ca635] ActionView::Template::Error (The asset "landingherodrink.jpeg" is not present in the asset pipeline.):
2017-07-28T06:43:04.236172+00:00 app[web.1]: F, [2017-07-28T06:43:04.236123 #4] FATAL -- : [d535ef51-8a33-41dc-b820-50e9a43ca635]     10:                 </div>
2017-07-28T06:43:04.236174+00:00 app[web.1]: [d535ef51-8a33-41dc-b820-50e9a43ca635]     11:         </div>
2017-07-28T06:43:04.236174+00:00 app[web.1]: [d535ef51-8a33-41dc-b820-50e9a43ca635]     12:         <div id="landingherodrink">
2017-07-28T06:43:04.236175+00:00 app[web.1]: [d535ef51-8a33-41dc-b820-50e9a43ca635]     13:                 <%= image_tag("landingherodrink.jpeg") %>
2017-07-28T06:43:04.236176+00:00 app[web.1]: [d535ef51-8a33-41dc-b820-50e9a43ca635]     14:         </div>
2017-07-28T06:43:04.236176+00:00 app[web.1]: [d535ef51-8a33-41dc-b820-50e9a43ca635]     15:         <%= render 'footermenu/footermenu' %>      
2017-07-28T06:43:04.236177+00:00 app[web.1]: [d535ef51-8a33-41dc-b820-50e9a43ca635]     16: </body>
2017-07-28T06:43:04.236210+00:00 app[web.1]: F, [2017-07-28T06:43:04.236170 #4] FATAL -- : [d535ef51-8a33-41dc-b820-50e9a43ca635]   
2017-07-28T06:43:04.236253+00:00 app[web.1]: F, [2017-07-28T06:43:04.236214 #4] FATAL -- : [d535ef51-8a33-41dc-b820-50e9a43ca635] app/views/landingpage/index.html.erb:13:in `_app_views_landingpage_index_html_erb__2117924159609624554_32934860'
2017-07-28T06:43:04.335568+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=thawing-cliffs-75380.herokuapp.com request_id=00e2db2c-310c-48a1-88f9-7e3e9e302a4d fwd="207.38.188.8" dyno=web.1 connect=0ms service=1ms status=304 bytes=48 protocol=https

It also shows:

ActionView::Template::Error (The asset "landingherodrink.jpeg" is not present in the asset pipeline.).

It is my hero image and it is located at assets/images/

Answer 1

In Rails 5+, make sure you have specified the file extension.

Ie.:

<%= image_tag 'logo.jpg' %>

instead of:

<%= image_tag 'logo' %>

Answer 2

I'm a bit too late but just had the same issue and fixed it just by changing my image extension from .jpeg to .jpg and of course changing it also in the code.