Everything was working just fine and I was editing twigs but realized that changes doesn't reflect on my website.
So I tried /bin/console cache:clear --env=prod
After that I got an HTTP 500
and when I go to web/app_dev.php/
I get this:
ContextErrorException in ClassCollectionLoader.php line 241: Notice: tempnam(): file created in the system's temporary directory
Any idea why?
You trying to use app_dev.php file, from symfony 4 you don't have app.php and app_dev.php files.To turn on the dev or prod environment you should set it on.env file.
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