Hello,
I tried to upgrade Magento on Azure from 2.1.2 to 2.1.4.
I was hard and now the admin is unavailable.
Before upgrade :
First, I need to upgrade PHP memory to 2G -> OK
Next, I face component dependency -> OK after did that 
nano /opt/bitnami/apps/magento/conf/php-fpm/php-settings.conf
php_value[memory_limit]=768M
So, i can launch the upgrade. And it seems to be ok.
Then, Iāve had this message on mysite/admin :
There has been an error processing your request
Exception printing is disabled by default for security reasons.
I checked the logs
on system.log
Iāve got this :
Permission denied
/opt/bitnami/apps/magento/htdocs/vendor/colinmollenhour/cache-backend-file/File.php on line 663
i did chmod 666 File.php
Iāve got now
main.CRITICAL: Broken reference: No element found with ID$
$ith ID 'login.content'. [] []
I tried this :
protected $_options = array(
'cache_dir' => 'null',
Replace it with:
protected $_options = array(
'cache_dir' => 'tmp/',
sudo mkdir tmp
and of course I relaunch Apache all the time.
Now, iāve got a blank page.
Is there any help ?
