Answers.Body: <p>They may have changed how they're running PHP for your hosting, which could lead to your old templates_c files being unwritable to the new PHP process.</p>
  
  <p>As Lobo's comment advises, removing the files and ensuring that the <code>templates_c</code> is world-writable should resolve the permission issue.</p>
  
  <p>It'd be ideal if <code>templates_c</code> belongs and is writable only to the new PHP process.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-06-11T12:05:48.230Z
Answers.LastActivityDate: 2015-06-11T12:05:48.230Z
Answers.UserDisplayName: Chris Burgess
Body: <p>My host updated PHP to 5.5. last night. Now, I can't login to my Joomla back-end because of an error. It says that CiviCRM does not have permission to write temp files. </p>
  
  <p>What can I do to make sure that I can login to Joomla again? I was thinking about:</p>
  
  <p>a) Deleting all files in media/civicrm/templates_c  or</p>
  
  <p>b) Disabling all CiviCRM folders</p>
  
  <p>Any help or tips would be great. </p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2015-06-11T11:33:14.350Z
Comments.Text: Can u try doing option a and check if that helps
Comments.UserDisplayName: Donald Lobo
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2015-06-11T11:58:00.043Z
Comments.Text: The first option helped. I'm able to login at the back-end again. Additional question, which minimum version of CiviCRM must be installed with the latest Joomla 3.4.?
Comments.UserDisplayName: Frank v D
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2015-06-11T12:07:00.073Z
Comments.Text: Great! Your second question will get more attention if you post it separately - go on :) - http://civicrm.stackexchange.com/questions/ask
Comments.UserDisplayName: Chris Burgess
Tags: <joomla><upgrade><php>
Title: Message: "CiviCRM does not have permission to write temp files" after login into back-end Joomla
ThreadText: # Message: "CiviCRM does not have permission to write temp files" after login into back-end Joomla
  
  (Asked by: username_0 on 2015-06-11)
  
  My host updated PHP to 5.5. last night. Now, I can't login to my Joomla back-end because of an error. It says that CiviCRM does not have permission to write temp files.
  
  What can I do to make sure that I can login to Joomla again? I was thinking about:
  
  a) Deleting all files in media/civicrm/templates\_c or
  
  b) Disabling all CiviCRM folders
  
  Any help or tips would be great.
  
  **Tags:** joomla, upgrade, php
  
  > **Comments:**
  > **username_1**: Can u try doing option a and check if that helps  
  > **username_0**: The first option helped. I'm able to login at the back-end again. Additional question, which minimum version of CiviCRM must be installed with the latest Joomla 3.4.?  
  > **username_2**: Great! Your second question will get more attention if you post it separately - go on :) - http://civicrm.stackexchange.com/questions/ask  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_2 on 2015-06-11. Score: 3
  
  They may have changed how they're running PHP for your hosting, which could lead to your old templates\_c files being unwritable to the new PHP process.
  
  As Lobo's comment advises, removing the files and ensuring that the `templates_c` is world-writable should resolve the permission issue.
  
  It'd be ideal if `templates_c` belongs and is writable only to the new PHP process.
  
  
  ---
  
  