Answers.Body: <p>I encountered the same issue and found that civicrm/packages/TbsZip/tbszip.php file is missing. Restoring the file fixed this issue.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-12-25T10:40:05.777Z
Answers.LastActivityDate: 2017-12-25T10:40:05.777Z
Answers.UserDisplayName: Monish Deb
Answers.Body: <p>Here are some places to check:</p>
  
  <ul>
  <li>The JavaScript file name you mentioned shows that you're using aggregated JavaScript.  To troubleshoot this, temporarily <a href="https://www.drupal.org/node/2866077" rel="nofollow noreferrer">disable aggregated Javascript</a>.</li>
  <li>If that solves your problem by itself, it's probably just a caching issue.  Clear caches and reenable JS aggregation.  More likely though, it will just make debugging easier (e.g. by showing the actual JS file throwing the error).</li>
  <li>Use the "Network" tab in your browser's developer tools once JS aggregation is off to look for 404 errors.</li>
  </ul>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-08-31T16:26:23.360Z
Answers.Text: Thanks for the help. I do have JS aggregation turned off. I just added $config['system.performance']['js']['preprocess'] = TRUE; to my settings.php file as per the post that you linked to, just to verify. I'm still getting the same results. One of the errors I neglected to add to the error message is: 'civicrm/admin/messageTemplates/add?action=add&reset=1 500 (Internal Server Error)'
Answers.UserDisplayName: spinsheet
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-09-01T01:13:25.277Z
Answers.Text: You may be getting the same results - but if your JS is no longer aggregated, then your console should report the JS error in a different filename, which should be a clue.  Did you find any 404 errors?
Answers.UserDisplayName: Jon G - Megaphone Tech
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-09-01T12:50:36.147Z
Answers.Text: I didn't see any 404 errors but there was the following 500 error:
  GET https://www.example.org/civicrm/admin/messageTemplates/add?action=add&reset=1 500 (Internal Server Error)
  
  Where 'example' is replacing the actual URL. So for some reason even after setting my JS not to aggregate it's still aggregating.
Answers.UserDisplayName: spinsheet
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-09-01T15:45:49.773Z
Answers.Text: I found that in the file sites/all/modules/civicrm/CRM/Utils/PDF/Document.php there is a line require_once 'TbsZip/tbszip.php that was throwing the following error in the Drupal logs: Warning: require_once(TbsZip/tbszip.php): failed to open stream: No such file or directory in require_once() (line 34 of /var/www/html/EXAMPLE/sites/all/modules/civicrm/CRM/Utils/PDF/Document.php). I commented that line out and now everything seems to work. Not sure what the repercussions of that are, or why it works on Test and not Prod.
Answers.UserDisplayName: spinsheet
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-08-31T16:14:56.087Z
Answers.LastActivityDate: 2017-08-31T16:14:56.087Z
Answers.UserDisplayName: Jon G - Megaphone Tech
Body: <p>When I try to create and new, or edit an existing, message template in 'Mailings' > 'Messsage Templates' I end up at a completely unstyled page. When I look at the console I see the following error:</p>
  
  <pre><code>Uncaught ReferenceError: CRM is not defined
  at BtJa0AvQ:153
  </code></pre>
  
  <p>I then look at the 'file' that is being referenced and at the very last line I see:</p>
  
  <pre><code>})(CRM.$);
  </code></pre>
  
  <p>I have a Test server which is rendering the mail templates fine, it's simply the Prod server (which figures...) where I'm having this issue.</p>
  
  <p>Any ideas where I can troubleshoot this issue?</p>
  
  <p>I'm using the following:</p>
  
  <ul>
  <li>Drupal 7.56</li>
  <li>CiviCRM 4.7.22</li>
  <li>PHP 5.5.38</li>
  <li>Amazon Linux AMI release 2017.03</li>
  <li>Apache 2.4.27</li>
  </ul>
  
  <p>I'm only using one extension but that extension has nothing to do with mailing and was actually added well after this problem surfaced.</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2017-08-31T15:56:38.893Z
Comments.Text: Can you please edit your question to indicate the CiviCRM version and CMS you're using?  Are you using any extensions that affect mail, like Mosaico and/or Flexmailer?
Comments.UserDisplayName: Jon G - Megaphone Tech
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2017-08-31T16:11:35.733Z
Comments.Text: Thanks for the updated info!  I can give you some troubleshooting ideas now (see below)
Comments.UserDisplayName: Jon G - Megaphone Tech
Tags: <error><mailing>
Title: Uncaught ReferenceError: CRM is not defined when trying to access mail templates
ThreadText: # Uncaught ReferenceError: CRM is not defined when trying to access mail templates
  
  (Asked by: username_0 on 2017-08-31)
  
  When I try to create and new, or edit an existing, message template in 'Mailings' > 'Messsage Templates' I end up at a completely unstyled page. When I look at the console I see the following error:
  Uncaught ReferenceError: CRM is not defined
  at BtJa0AvQ:153
  
  I then look at the 'file' that is being referenced and at the very last line I see:
  })(CRM.$);
  
  I have a Test server which is rendering the mail templates fine, it's simply the Prod server (which figures...) where I'm having this issue.
  Any ideas where I can troubleshoot this issue?
  I'm using the following:
  
  Drupal 7.56
  CiviCRM 4.7.22
  PHP 5.5.38
  Amazon Linux AMI release 2017.03
  Apache 2.4.27
  
  I'm only using one extension but that extension has nothing to do with mailing and was actually added well after this problem surfaced.
  
  **Tags:** error, mailing
  
  > **Comments:**
  > **username_1**: Can you please edit your question to indicate the CiviCRM version and CMS you're using?  Are you using any extensions that affect mail, like Mosaico and/or Flexmailer?  
  > **username_1**: Thanks for the updated info!  I can give you some troubleshooting ideas now (see below)  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_2 on 2017-12-25. Score: 2
  
  I encountered the same issue and found that civicrm/packages/TbsZip/tbszip.php file is missing. Restoring the file fixed this issue.
  
  
  ---
  
  ### Answer by username_1 on 2017-08-31. Score: 2
  
  Here are some places to check:
  
  * The JavaScript file name you mentioned shows that you're using aggregated JavaScript. To troubleshoot this, temporarily [disable aggregated Javascript](https://www.drupal.org/node/2866077).
  * If that solves your problem by itself, it's probably just a caching issue. Clear caches and reenable JS aggregation. More likely though, it will just make debugging easier (e.g. by showing the actual JS file throwing the error).
  * Use the "Network" tab in your browser's developer tools once JS aggregation is off to look for 404 errors.
  
  > **Comments:**
  > **username_0**: Thanks for the help. I do have JS aggregation turned off. I just added $config['system.performance']['js']['preprocess'] = TRUE; to my settings.php file as per the post that you linked to, just to verify. I'm still getting the same results. One of the errors I neglected to add to the error message is: 'civicrm/admin/messageTemplates/add?action=add&reset=1 500 (Internal Server Error)'  
  > **username_1**: You may be getting the same results - but if your JS is no longer aggregated, then your console should report the JS error in a different filename, which should be a clue.  Did you find any 404 errors?  
  > **username_0**: I didn't see any 404 errors but there was the following 500 error: GET https://www.example.org/civicrm/admin/messageTemplates/add?action=add&reset=1 500 (Internal Server Error)  Where 'example' is replacing the actual URL. So for some reason even after setting my JS not to aggregate it's still aggregating.  
  > **username_0**: I found that in the file sites/all/modules/civicrm/CRM/Utils/PDF/Document.php there is a line require_once 'TbsZip/tbszip.php that was throwing the following error in the Drupal logs: Warning: require_once(TbsZip/tbszip.php): failed to open stream: No such file or directory in require_once() (line 34 of /var/www/html/EXAMPLE/sites/all/modules/civicrm/CRM/Utils/PDF/Document.php). I commented that line out and now everything seems to work. Not sure what the repercussions of that are, or why it works on Test and not Prod.  
  
  ---
  
  