JavaScript Unable to upgrade laravel framework from 5.5 to 5.6 or 5.7 on an existing project

Best way to upgrade laravel framework for your projects in following steps

  1. Take backup of your composer.json file
  2. remove all third party packages from composer.json file or take latest composer.json from laravel git repository https://github.com/laravel/laravel
  3. comment all third party packages service providers from app.php file
  4. Now run composer update command in terminal
  5. Now install all your third party packages again and enable third party service provider on app.php file.

update: if you are trying to upgrade laravel version 5.5 and up skip step 3. also for laravel 5.5 and up no need to enable third party package service providers in step 5.

Happy updating laravel for your projects.

Answer:1

You have to install these packages first before run composer update, also change the version of laravel to 5.7 in your composer.json file.

Ubundu Terminal Command

sudo apt install php7.2 libapache2-mod-php7.2 php7.2-mbstring php7.2-xmlrpc php7.2-soap php7.2-gd php7.2-xml php7.2-cli php7.2-zip
  • PHP >= 7.1.3
  • Ctype PHP Extension
  • JSON PHP Extension
  • BCMath PHP Extension

Delete the vendor folder and try composer update

Answer:2
php -v

if below 7 , maybe you have alias like

php7 -v

or

php72 -v

many servers use php aliases

Answer:3

just change the laravel to 5.7.* in composer.json file and run composer install command

Answer:4

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