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i was having an error on frontend enter image description here

after looking for an answer here i got an answer :Magento 2 error: We're sorry, an error has occurred while generating this email according to which i enabled the developers mode by command line as:

php bin/magento deploy:mode:set developer and then clearing the caches: php bin/magento cache:flush and after refreshing the front page it gave me a crazy list of errors :

enter image description here

can someone guide me what to do now because my website was running but now customers have started to move on to other websites which i a great shock to me as it is a huge projct for me.

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    Well you should never ever enable develop mode on a production site and that too after it is live for customers. Simply now set it to production mode again. Commented Mar 22, 2018 at 7:03
  • how can i set it to production mode again? Commented Mar 22, 2018 at 7:04
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    Run this command : php bin/magento deploy:mode:set production. Keep patience while it is running because there will be some processes taking place which will take some time to finish. Good Luck! Commented Mar 22, 2018 at 7:05
  • hey i tried this and now its showing Service Temporarily Unavailable Error 503 Commented Mar 22, 2018 at 7:07
  • check if this post helps - magento.stackexchange.com/questions/90064/… Commented Mar 22, 2018 at 7:10

2 Answers 2

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You can try following step may be it can help you :

  1. Remove all data inside directory :

    var/cache var/di var/generation var/view_preprocessed pub/static

  2. check if maintenannce.flag file exist in root/var/ directory delete that file as well

  3. run command bin/magento deploy:mode:set production

  4. clear cache bin/magento c:f
  5. check permission of file and folder (important to check) try to hit base url in browser.
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  • You should really explain what these steps are doing. It was by running commands without knowing what they do that got the OP into his mess in the first place. Commented Jul 30, 2018 at 9:03
  • Actually I am considering the person who is performing a task should have basic knowledge of magento default command . But If you need explanation you have following option just run : Commented Jul 30, 2018 at 11:23
  • Actually I am considering the person who is performing a task should have basic knowledge of magento default command . But If you need explanation you have following option just run : bin/magento in root folder all command are well explained . secondly : deleting file under view processed will delete all static file magento generate for caching purpose . deploy mode command will change mode from developer to production . bin/magento c:f remove all cache files . and permission you need to check according to you configuration . Commented Jul 30, 2018 at 11:32
  • you can use chown and chmod command for setting owner and file permission Commented Jul 30, 2018 at 11:34
  • Remember that developers (and not just the OP) use Stack Exchange to learn, not just find answers to one-off questions. So explaining what the commands do is essential to help developers do that. Commented Jul 30, 2018 at 11:38
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There are simple steps to overcome this:

  1. Empty content of root/var/cache/, /var/page_cache/, /var/log, /var/report ,/var/di , var/generation var/view_preprocessed
  2. run php bin/magento setup:upgrade
  3. run php bin/magento setup:di:compile
  4. run php bin/magento cache:clean
  5. run php bin/magento cache:flush
  6. run 4. run php bin/magento setup:static-content:deploy -f or setup:static-content:deploy
  7. clear cache again
  8. Every thing will be fine
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  • There is no such command as php bin/magento flush. Also, there is no need to flush cache twice. Finally, switching to production mode will execute these steps, so you could've just said that (like the accepted answer). Commented Jul 30, 2018 at 9:07

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