一，报错信息:
Uncaught ReflectionException: Class "view" does not exist in /web/api/vendor/laravel/framework/src/Illuminate/Container/Container.php:938
Stack trace:
#0 /web/api/vendor/laravel/framework/src/Illuminate/Container/Container.php(938): ReflectionClass->__construct()
#1 /web/api/vendor/laravel/framework/src/Illuminate/Container/Container.php(815): Illuminate\Container\Container->build()
#2 /web/api/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(1046): Illuminate\Container\Container->resolve()
...情况说明：
这些代码在测试站没有问题，新复制到了正式站目录后报错，
二，解决:
1,网上的解决办法:
看网上的文档是执行两个命令，但在我这里未生效:
第一个命令: php artisan package:discover,报错了
[root@web api]# php artisan package:discover
In ClassLoader.php line 576:
include(/web/api/vendor/composer/../laravel/ui/src/UiServiceProvider.php): Failed to open stream: No such file or directory 第二个命令: 报错与上一个相同
[root@web api]# php artisan key:generate
In ClassLoader.php line 576:
include(/web/api/vendor/composer/../laravel/ui/src/UiServiceProvider.php): Failed to open stream: No such file or directory 查看报错信息，是缺少/vendor/composer/laravel/ui目录下的代码文件
2,网上的问题和我情况不同，
我的解决：
我这儿有/vendor/composer/laravel/ui目录，但目录下是空的，没有代码文件，
查看composer：
[lhd@web api]$ composer show -i | grep ui
You are using the deprecated option "installed". Only installed packages are shown by default now. The --all option can be used to show all packages.
fruitcake/php-cors 1.3.0 Cross-origin resource sharing library for the Symfony HttpFoundation
laravel/ui 4.5.2 Laravel UI utilities and presets.
ramsey/uuid 4.7.6 A PHP library for generating and working with universally unique identifiers (UUIDs).
symfony/finder 7.1.1 Finds files and directories via an intuitive fluent interface
symfony/polyfill-uuid 1.30.0 Symfony polyfill for uuid functions
symfony/uid 7.1.1 Provides an object-oriented API to generate and represent UIDs因为composer认为安装了这个库，但不清楚为什么这个库下面没有代码,所以引发了报错
3,最终解决:
composer remove laravel/ui之后恢复正常，
这个库安装后同步到线上时代码被git忽略,
所以会报缺少文件错误，
去掉此库或重新安装后再push代码也行