Answers.Body: <p>You don't mention your php5 version, that would be the most likely cause (i.e if it's less than 5.4).</p>
  
  <p>But if the problem is seen in an apache error file and it's in the smarty file, then just give us the error and it should be clearer.</p>
  
  <p>If you only updated the code files and didn't clear caches afterwards and run db updates, then you'll definitely want to do that, as per the documentation.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-10-27T11:31:17.923Z
Answers.Text: I went to a new server installation.
  Ubuntu 16.04 Apache 2.2 PHP MySQL 5.6 Wordpress 4.6 and 7.01 CiviCRM 7.12. It is in this context that I noticed abnormalities with smarty to the line 447 according to the apache log.
  
  I am now back has lts version of all software particularly with CiviCRM 4.6.22 I see no malfunctions with this set.
Answers.UserDisplayName: cogefip
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-10-27T11:32:41.867Z
Answers.Text: Correction PHP 7.01
Answers.UserDisplayName: cogefip
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-10-27T11:42:10.410Z
Answers.Text: PHP 7 isn't fully supported by CiviCRM yet - see my answer for details.
Answers.UserDisplayName: William Mortada
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-11-01T18:05:34.970Z
Answers.Text: We could spend less time speculating if you provide the actual errors you are seeing in Apache.
Answers.UserDisplayName: Alan Dixon
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-10-25T17:30:39.023Z
Answers.LastActivityDate: 2016-10-25T17:30:39.023Z
Answers.UserDisplayName: Alan Dixon
Answers.Body: <p>It sounds like this may be due to your PHP version.  CiviCRM doesn't fully support PHP 7 yet.</p>
  
  <p>See: <a href="https://wiki.civicrm.org/confluence/display/CRMDOC/CiviCRM+PHP+Requirements" rel="nofollow">CiviCRM PHP Requirements</a></p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-10-28T14:44:18.080Z
Answers.Text: Actually 4.7.12 supports PHP7. The issue is marked as fix for that version.
  https://issues.civicrm.org/jira/browse/CRM-17789
Answers.UserDisplayName: Sleewok
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-10-28T15:15:13.640Z
Answers.Text: Not according to the wiki (see my link above).  Perhaps the wiki needs to be updated?
Answers.UserDisplayName: William Mortada
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-10-27T11:41:40.683Z
Answers.LastActivityDate: 2016-10-27T11:41:40.683Z
Answers.UserDisplayName: William Mortada
Body: <p>I note with the 4.7.12 version of the difficulties of implementation, particularly with queries that only lead to blank pages.
  Track errors in apache located abnormalities in smarty.
  I returned to version 4.6.22 LTS that does not pose this problem.</p>
  
  <p>Installation on a dedicated server ubuntu 14.04, apche 2.2 mysql 5.5.52 php5 wordpress 4.6</p>
  
  <p>cordially</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-10-24T08:37:05.353Z
Comments.Text: Thanks for your post.  It would be helpful if you could be more specific about the problems that you are experiencing.  Could you say what you were doing that led to a blank page?
Comments.UserDisplayName: William Mortada
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-10-27T11:35:45.520Z
Comments.Text: I tried importing contacts from a CSV file. (About 650ko)
Comments.UserDisplayName: cogefip
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-10-27T11:36:28.287Z
Comments.Text: Between step 1 and 2
Comments.UserDisplayName: cogefip
Tags: <wordpress><upgrade><smarty>
Title: White screen in 4.7.12
ThreadText: # White screen in 4.7.12
  
  (Asked by: username_0 on 2016-10-23)
  
  I note with the 4.7.12 version of the difficulties of implementation, particularly with queries that only lead to blank pages.
  Track errors in apache located abnormalities in smarty.
  I returned to version 4.6.22 LTS that does not pose this problem.
  
  Installation on a dedicated server ubuntu 14.04, apche 2.2 mysql 5.5.52 php5 wordpress 4.6
  
  cordially
  
  **Tags:** wordpress, upgrade, smarty
  
  > **Comments:**
  > **username_1**: Thanks for your post.  It would be helpful if you could be more specific about the problems that you are experiencing.  Could you say what you were doing that led to a blank page?  
  > **username_0**: I tried importing contacts from a CSV file. (About 650ko)  
  > **username_0**: Between step 1 and 2  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_2 on 2016-10-25. Score: 2
  
  You don't mention your php5 version, that would be the most likely cause (i.e if it's less than 5.4).
  
  But if the problem is seen in an apache error file and it's in the smarty file, then just give us the error and it should be clearer.
  
  If you only updated the code files and didn't clear caches afterwards and run db updates, then you'll definitely want to do that, as per the documentation.
  
  > **Comments:**
  > **username_0**: I went to a new server installation. Ubuntu 16.04 Apache 2.2 PHP MySQL 5.6 Wordpress 4.6 and 7.01 CiviCRM 7.12. It is in this context that I noticed abnormalities with smarty to the line 447 according to the apache log.  I am now back has lts version of all software particularly with CiviCRM 4.6.22 I see no malfunctions with this set.  
  > **username_0**: Correction PHP 7.01  
  > **username_1**: PHP 7 isn't fully supported by CiviCRM yet - see my answer for details.  
  > **username_2**: We could spend less time speculating if you provide the actual errors you are seeing in Apache.  
  
  ---
  
  ### Answer by username_1 on 2016-10-27. Score: -1
  
  It sounds like this may be due to your PHP version. CiviCRM doesn't fully support PHP 7 yet.
  
  See: [CiviCRM PHP Requirements](https://wiki.civicrm.org/confluence/display/CRMDOC/CiviCRM+PHP+Requirements)
  
  > **Comments:**
  > **username_3**: Actually 4.7.12 supports PHP7. The issue is marked as fix for that version. https://issues.civicrm.org/jira/browse/CRM-17789  
  > **username_1**: Not according to the wiki (see my link above).  Perhaps the wiki needs to be updated?  
  
  ---
  
  