Opencart Fatal error: Call to a member function get() on a non-object - configuration-files

Question

Trying to move from local host to new server. Fresh install worked fine, no problems. When I uploaded my files mydomain.com/admin comes up with a white screen and mydomain.com produces this error:
Fatal error: Call to a member function get() on a non-object in /home4/pawpostc/public_html/index.php on line 103.
So I took a look at index.php line 103:
if ($config->get('config_error_display')) {
echo '<b>' . $error . '</b>: ' . $errstr . ' in <b>' . $errfile . '</b> on line <b>' . $errline . '</b>';
}
Seems like there is a problem with my config files. So I went and had a look at them. I have gone over them a few times but can not find the mistake, probably missing something, so here are the config files.
config.php (in my root www. folder):
<?php
// HTTP
define('HTTP_SERVER', 'http://www.pawpost.com.au/');
define('HTTP_IMAGE', 'http://www.pawpost.com.au/image/');
define('HTTP_ADMIN', 'http://www.pawpost.com.au/admin/');
// HTTPS
define('HTTPS_SERVER', 'http://www.pawpost.com.au/');
define('HTTPS_IMAGE', 'http://www.pawpost.com.au/image/');
// DIR
define('DIR_APPLICATION', '/home4/pawpostc/public_html/catalog/');
define('DIR_SYSTEM', '/home4/pawpostc/public_html/system/');
define('DIR_DATABASE', '/home4/pawpostc/public_html/system/database/');
define('DIR_LANGUAGE', '/home4/pawpostc/public_html/catalog/language/');
define('DIR_TEMPLATE', '/home4/pawpostc/public_html/catalog/view/theme/');
define('DIR_CONFIG', '/home4/pawpostc/public_html/system/config/');
define('DIR_IMAGE', '/home4/pawpostc/public_html/image/');
define('DIR_CACHE', '/home4/pawpostc/public_html/system/cache/');
define('DIR_DOWNLOAD', '/home4/pawpostc/public_html/download/');
define('DIR_LOGS', '/home4/pawpostc/public_html/system/logs/');
// DB
define('DB_DRIVER', 'mysql');
define('DB_HOSTNAME', 'localhost');
define('DB_USERNAME', 'my user name');
define('DB_PASSWORD', 'my password');
define('DB_DATABASE', 'my database');
define('DB_PREFIX', 'oc_');
?>
admin/config.php:
<?php
// HTTP
define('HTTP_SERVER', 'http://www.pawpost.com.au/admin/');
define('HTTP_CATALOG', 'http://www.pawpost.com.au/');
define('HTTP_IMAGE', 'http://www.pawpost.com.au/image/');
// HTTPS
define('HTTPS_SERVER', 'http://www.pawpost.com.au/admin/');
define('HTTPS_CATALOG', 'http://www.pawpost.com.au/');
define('HTTPS_IMAGE', 'http://www.pawpost.com.au/image/');
// DIR
define('DIR_APPLICATION', '/home4/pawpostc/public_html/admin/');
define('DIR_SYSTEM', '/home4/pawpostc/public_html/system/');
define('DIR_DATABASE', '/home4/pawpostc/public_html/system/database/');
define('DIR_LANGUAGE', '/home4/pawpostc/public_html/admin/language/');
define('DIR_TEMPLATE', '/home4/pawpostc/public_html/admin/view/template/');
define('DIR_CONFIG', '/home4/pawpostc/public_html/system/config/');
define('DIR_IMAGE', '/home4/pawpostc/public_html/image/');
define('DIR_CACHE', '/home4/pawpostc/public_html/system/cache/');
define('DIR_DOWNLOAD', '/home4/pawpostc/public_html/download/');
define('DIR_LOGS', '/home4/pawpostc/public_html/system/logs/');
define('DIR_CATALOG', '/home4/pawpostc/public_html/catalog/');
// DB
define('DB_DRIVER', 'mysql');
define('DB_HOSTNAME', 'localhost');
define('DB_USERNAME', 'my user name');
define('DB_PASSWORD', 'my password');
define('DB_DATABASE', 'my database');
define('DB_PREFIX', 'oc_');
?>
Any help on this would be appreciated.

Answer 1

I was using opencart and installed vqmod.
All of a sudden I have one of the same errors.
This solved my problem:
in system/library/session.php
replace start session with:
session_save_path(realpath(dirname($_SERVER['DOCUMENT_ROOT']) . '/../tmp'));

Answer 2

The most likely issue is that one or more of your library files are corrupt from uploading. Re upload your system/library/ folder from your local one. Your config files seem fine and the error doesn't reference a config issue. What is line 103 in your index.php file?

Answer 3

please cross check you have set all permissions
i had came across this error and was solved,
that was due to a file permission problem

Answer 4

I was struggling with the same problem after migrating my site to a new VPS environment. I figured it HAD to be something to do with the changed document-root path or permissions of my shop and pulled out a lot of hair trying to get to the core of the problem.
I finally realised that I had incorrect permissions on my PHP session-data store! In my case, the folder at /var/lib/php/session/ was owned by apache (naturally) but I had changed apache to run as a different user so it could no longer write to the session-store.
The error messages in this case are cryptic (to say the least!) and didn't give a clue that the problem might just be lack of write permission!
Oh well, we should know by now that 90% of unix issues are down to perms!

Answer 5

I upload a file at my server (directory: vqmod/....php ).
Just change vqmod file permission. I set 777 and that solved it.

Answer 6

From the error you received, it looks like the $config variable is not getting set.
The $config variable is set on line 35 using the Config class which is located in system/library/config.php
I think if you figure out why the class isn't getting instantiated, you'll be able to fix the issue.
This could be a couple things:
The system/library/config.php file may not have been uploaded to the new server
As mentioned in previous answers, there could be a permissions issue. Check the permissions of system/library/config.php and make sure the correct user has ownership.
Or it could be a completely unrelated issue.

Answer 7

The error is due to permissions set on the cache folder. Setting that to 755 and the files to 555 with set you home and dry.

Answer 8

I had the same issue. I changed vqmod permission to 777. I am not sure this solved the problem, but I checked my website without adding www. before the domain and it worked. The warning was removed if I check http://daytodaystore.com. If I check http://www.daytodaystore.com, the warning is there.

Answer 9

I had this problem when i migrated my server from 2G to 4GH on Godaddy.
Came across this forum and found that the issue is with session.php
Then, i guessed 'tmp' folder was missing. So, i created one just one step above html folder. and gave it a 777 access. Problem was fixed and my website looks great after that.