Magento – Switch to the developer mode Magento 2

developer-modedevelopmentmagento2

I just installed Magento 2 and I want to set the developer mode. But when I ran php bin/magento deploy:mode:set developer, the command gives an error:

catalogWidget/Model/Rule can not be deleted.

It's not changing the mode from default to developer.

Best Answer

Here is 3 ways to change Magento 2 to developer mode

1. Command line

php bin/magento deploy:mode:set developer

2. Config file app/etc/env.php

Find line

'MAGE_MODE' => 'default'

Change to 

'MAGE_MODE' => 'developer'

3. Virtual Host

apache2

SetEnv MAGE_MODE developer

nginx

set $MAGE_MODE developer;
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