Rails: RuntimeError: can't add a new key into hash during iteration

Asked Mar 26 '17 at 16:01

Active Mar 26 '17 at 18:48

Viewed 569 times

In my rails 4.2.7 app running on puma deployed on Heroku in clustered mode with 2 workers and 8 threads, I get the following error in Rollbar. My Memory usage is also high, sometimes crossing limit for 1x dyno.

RuntimeError: can't add a new key into hash during iteration
File "/app/app/views/shared/_navigation.html.haml" line 4 in block in _app_views_shared__navigation_html_haml___3017256416239853871_69904621111460
+ 8 non-project frames

Here is code block mentioning the lines

= link_to root_url, class: 'logo', rel: 'home', itemprop: 'logo', itemscope: true, itemtype: 'https://schema.org/ImageObject' do
  = image_tag 'logo', alt: '9curry', title: 'AppName', itemprop: 'url'
  %meta{ content: '264', itemprop: 'width' }
  %meta{ content: '73', itemprop: 'height' }
%meta{ content: root_url, itemprop: 'url' }
%meta{ content: 'AppName', itemprop: 'name' }

And similar error is thrown for following block of code

.play-store
  = link_to '#', rel: 'nofollow' do
    = image_tag 'google-play-badge', width: 200

edited Mar 26 '17 at 18:48

asked Mar 26 '17 at 16:01

lightsaber

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Is your memory used over the computer max? – Hsiu Chuan Tsao Mar 26 '17 at 16:10
why you have indented two `meta` tags within image tag? – Sachin Singh Mar 26 '17 at 16:34
@SachinSingh Edited code now, pasting changed it, corrected the indentation now – lightsaber Mar 26 '17 at 18:49
@Tsao Sometimes it's above max, and it starts using swap. – lightsaber Mar 26 '17 at 18:50
@StarWars Could you fix it ? – edudepetris Sep 14 '17 at 15:31
I had the same issue. Here https://stackoverflow.com/a/52387808/586195 is my workaround – OfficeYA Sep 18 '18 at 13:37

Rails: RuntimeError: can't add a new key into hash during iteration

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