Update Code In Production Mode

Question

Recently I made my Magento 2.3.1 website live and set mode as "production". Now If I try to run php bin/magento setup:di:compile then it starts showing error

An error has happened during application run. See exception log for details.

In order to protect this I need to set Maintenance mode and website goes offline. Is it anyway by which we can run php bin/magento setup:di:compile and website will not show error.

Same thing happens during php bin/magento setup:upgrade. It distorted the page layout.

Answer 1

Yes ofcourse there is.

First you just make it production skipping compilation.

php magento deploy:mode:set production --skip-compilation

Then, run

php bin/magento setup:di:compile

Voila, error will be shown. Try it.

Answer 2

This is a pretty old error that has not yet fixed by magento but in order to fix this you can follow these steps-

add the expected library from require-dev to require, giving a require setting in PhpCsFixerReview.php

"require": {
    "magento/product-community-edition": "2.0.5",
    "composer/composer": "@alpha",
    "sjparkinson/static-review": "~4.1"
},

hope this will solve your issue