Hi,
I can't configure any shipping methods.
Can somebody help fix this issue, please?
[2017-10-27 17:33:34] main.CRITICAL: Class Magento\Shipping\Model\Config\Source\Allspecificcountries does not exist
First Remove from root
var/generation
folder and check,
if you have installed any new extension related to shipping method just disable them and run upgrade command and check.
Just check your error log from var/log and check system.log and exception.log file to get more info about your issue.
You have asked question to Welcome forum, you can ask your question into magento 2 forum section where most of user are aware for your issue and someone will give answer if possible.
Link Magento 2 programming Questions.
Thanks.
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Dear Rakesh Jesadiya
Thanks a lot for your answer!
The file var/generation was removed from root.
I was tried to change permissions too but it is did not give any results.
The file exception.log shows issue
main.CRITICAL: Notice: SessionHandler::gc(): ps_files_cleanup_dir: opendir(/var/tmp) failed: Permission denied (13) in /data01/virt67276/domeenid/magento2/htdocs/vendor/magento/framework/Session/SaveHandler.php on line 129 {"exception":"[object] (Exception(code: 0): Notice: SessionHandler::gc(): ps_files_cleanup_dir: opendir(/var/tmp) failed: Permission denied (13) in /data01/virt67276/domeenid/magento2/htdocs/vendor/magento/framework/Session/SaveHandler.php on line 129 at /data01/virt67276/domeenid/magento2/htdocs/vendor/magento/framework/App/ErrorHandler.php:61)"}
The file system.log shows issue
[2017-10-29 09:06:00] main.CRITICAL: Class Magento\Shipping\Model\Config\Source\Allspecificcountries does not exist [] []