Composer install 時候報錯：
Composer update 時候報錯：
Your requirements could not be resolved to an installable set of packages
Problem 1
Root composer json requires topthink/framework 5 1.*, found topthink/framework [v5. 1. 41] in the lock file but not in remote repositories, make sure you av d updating this package to keep the one from the lock file
解決方案一：
composer update --ignore-platform-regs
使用強制安裝更新
解決方案二：
更換composer鏡像地址；
使用：
"repositories": {
"packagist": {
"type": "composer",
"url": "https://packagist.phpcomposer.com"
}
}
或者：
"repositories": {
"packagist": {
"type": "composer",
"url": "https://packagist.org"
}
}
切換 鏡像地址后一般可以解決這個問題；
其他問題 ：
出現The "topthink/think-installer" plugin was skipped because it requires a Plugin API version ("^1.0") that does not match your Composer installation ("2.1.0")
解決步驟：
①清除composer之前的鏡像：composer config -g --unset repos.packagist
②更新thinkPHP版本：composer update topthink/framework --no-plugins
③重新安裝插件：composer update
其他解決方案：
① 切換項目文件夾
② 運行：composer config -g repo.packagist composer https://packagist.org
文章來源：劉俊濤的博客歡迎關注公眾號、留言、評論，一起學習。
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