Magento 2.2.6 – Unable to Set Developer Mode

magento2

Im am using Magento 2.2.6 and try to switch to the dev mode (before production).

I do it like described in:
https://devdocs.magento.com/guides/v2.2/config-guide/cli/config-cli-subcommands-mode.html

rm -rf /generated/metadata/* /generated/code/*
bin/magento deploy:mode:set developer

But at point 2. i get this error:

www-data@602f3683557f:~/html$ bin/magento deploy:mode:set developer
Warning: include(/var/www/html/vendor/composer/../../generated/code/Magento/Framework/App/ResourceConnection/Proxy.php): failed to open stream: No such file or directory in /var/www/html/vendor/composer/ClassLoader.php on line 444

So, any ideas whats going on here?

Best Answer

Solution was:

rm -rf vendor/* and run composer install

Thanks to Javier Villanueva

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