Cannot login to admin panel on Magento 2

[imran_hussain1]

Hi guys I am getting the following message, Does anyone know how to fix this. ( I don't have a backup)

Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/tradesignletters/public_html/vendor/colinmollenhour/cache-backend-file/File.php on line 81

Fatal error: Uncaught Zend_Cache_Exception: cache_dir "/home/tradesignletters/public_html/var/page_cache" is not writable in /home/tradesignletters/public_html/vendor/magento/zendframework1/library/Zend/Cache.php:209 Stack trace: #0 /home/tradesignletters/public_html/vendor/magento/zendframework1/library/Zend/Cache/Backend/File.php(180): Zend_Cache::throwException('cache_dir "/hom...') #1 /home/tradesignletters/public_html/vendor/colinmollenhour/cache-backend-file/File.php(87): Zend_Cache_Backend_File->setCacheDir('/home/tradesign...') #2 /home/tradesignletters/public_html/vendor/magento/zendframework1/library/Zend/Cache.php(153): Cm_Cache_Backend_File->__construct(Array) #3 /home/tradesignletters/public_html/vendor/magento/zendframework1/library/Zend/Cache.php(94): Zend_Cache::_makeBackend('Cm_Cache_Backen...', Array, true, true) #4 /home/tradesignletters/public_html/vendor/magento/framework/App/Cache/Frontend/Factory.php(154): Zend_Cache::factory('Magento\\Framewo...', 'Cm_Cache_Backen...', Array, Array, true, true, tru in /home/tradesignletters/public_html/vendor/magento/zendframework1/library/Zend/Cache.php on line 209

[Manthan Dave]

Hi @imran_hussain1

Here - you have permission issue for var/cache directory as it is not writable so.

do one thing , remove the below mention directories and run the commands , then you will able to logged in into magento admin panel.

1) rm -rf var/cache , rm -rf var/generation , rm -rf generated

2) php bin/magento setup:di:compile

3) then from the root directory you need to run commands - 

 find ./var -type d -exec chmod 777 {} \; // 777 permission for var folder

 find ./pub/media -type d -exec chmod 777 {} \;

 find ./pub/static -type d -exec chmod 777 {} \;

4) php bin/magento setup:static-content:deploy -f

5) php bin/magento cache:clean

6) php bin/magento cache:flush

for more details refer this link - https://magento.stackexchange.com/questions/91870/magento-2-folder-file-permissions

Then check it will works 

hope it helps !

[Manish Mittal]

Hello @imran_hussain1

As shared exception, it seems you var/ directory is not writable so need to set permission for Var folder.

Please run below commands:

Sudo chmod -R 0777 var/ pub/
php bin/magento cache:flush
Sudo chmod -R 0777 var/ pub/

Try again it should work

[gelanivishal]

Hello @imran_hussain1,

The issue looks like permission issue on cache directory. Please run below command in Magento 2 root directory

chmod -Rf 0777 var/ pub/

Also check below standard magento 2 permission command

find . -type d -exec chmod 500 {} \;
find . -type f -exec chmod 400 {} \;
find var/ -type f -exec chmod 600 {} \;
find media/ -type f -exec chmod 600 {} \;
find var/ -type d -exec chmod 700 {} \;
find media/ -type d -exec chmod 700 {} \;

--
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