我在AWS下安装了ubuntu 16，并尝试安装laravel 5.8应用程序，但是 用
打开服务器ssh -i /home/user/pemkeys.pem
命令 运行作曲家
时出现权限拒绝错误ubuntu@ip-172-31-34-88:/var/www/html/lprods$ clear
ubuntu@ip-172-31-34-88:/var/www/html/lprods$ sudo chmod -R 775 /var/www/html/lprods/
ubuntu@ip-172-31-34-88:/var/www/html/lprods$ composer install
Cannot create cache directory /home/ubuntu/.composer/cache/repo/https---packagist.org/, or directory is not writable. Proceeding without cache
Cannot create cache directory /home/ubuntu/.composer/cache/files/, or directory is not writable. Proceeding without cache
Loading composer repositories with package information
Installing dependencies (including require-dev) from lock file
Nothing to install or update
[ErrorException]
file_put_contents(/var/www/html/lprods/vendor/composer/installed.json): failed to open stream: Permission denied
install [--prefer-source] [--prefer-dist] [--dry-run] [--dev] [--no-dev] [--no-plugins] [--no-custom-installers] [--no-autoloader] [--no-scripts] [--no-progress] [-v|vv|vvv|--verbose] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--ignore-platform-reqs] [--] [<packages>]...
ubuntu@ip-172-31-34-88:/var/www/html/lprods$ whoami
ubuntu
ubuntu@ip-172-31-34-88:/var/www/html/lprods$ lsb_release -d; uname -r; uname -i
Description: Ubuntu 16.04.6 LTS
4.4.0-1084-aws
x86_64
据我所知，这不是一个好主意
composer install
在根目录下。 我应该采取哪些步骤才能正确安装我的应用程序？
已更新： 1）我的项目目录：
$ cd /var/www/html/lprods
$ ls -ld
drwxrwxrwx 16 root root 4096 Jun 17 12:34 .
（这些输出是什么意思？）
$ ls -la
total 600
drwxrwxrwx 16 root root 4096 Jun 17 12:34 .
drwxr-xr-x 4 root root 4096 Jun 17 11:42 ..
-rwxrwxrwx 1 root root 625 Jun 17 12:03 .env
-rwxrwxrwx 1 root root 521 Jun 17 11:42 .env.example
drwxrwxrwx 8 root root 4096 Jun 17 11:42 .git
-rwxrwxrwx 1 root root 111 Jun 17 11:42 .gitattributes
-rwxrwxrwx 1 root root 135 Jun 17 11:42 .gitignore
-rwxrwxrwx 1 root root 122 Jun 17 11:42 .htaccess
drwxrwxrwx 3 root root 4096 Jun 17 11:42 Modules
-rwxrwxrwx 1 root root 1110 Jun 17 11:42 Release.key
drwxrwxrwx 2 root root 4096 Jun 17 11:42 __SQL
drwxrwxrwx 10 root root 4096 Jun 17 11:42 app
-rwxrwxrwx 1 root root 1646 Jun 17 11:42 artisan
drwxrwxrwx 3 root root 4096 Jun 17 11:42 bootstrap
-rwxrwxrwx 1 root root 430 Jun 17 11:42 code.html
-rwxrwxrwx 1 root root 186 Jun 17 11:42 code.php
-rwxrwxrwx 1 root root 5746 Jun 17 11:42 code.txt
-rwxrwxrwx 1 root root 8244 Jun 17 11:42 commands.txt
-rwxrwxrwx 1 root root 1953 Jun 17 11:42 composer.json
-rwxrwxrwx 1 root root 187263 Jun 17 11:42 composer.lock
drwxrwxrwx 2 root root 4096 Jun 17 11:42 config
drwxrwxrwx 5 root root 4096 Jun 17 11:42 database
-rwxrwxrwx 1 root root 2860 Jun 17 11:42 env.txt
-rwxrwxrwx 1 root root 4236 Jun 17 11:42 good.html
-rwxrwxrwx 1 root root 83 Jun 17 11:42 lprods.sublime-project
-rwxrwxrwx 1 root root 8460 Jun 17 11:42 lprods.sublime-workspace
-rwxrwxrwx 1 root root 388 Jun 17 11:42 md.txt
drwxrwxrwx 834 root root 36864 Jun 17 11:42 node_modules
-rwxrwxrwx 1 root root 1114 Jun 17 11:42 package.json
-rwxrwxrwx 1 root root 1055 Jun 17 11:42 phpunit.xml
drwxrwxrwx 11 root root 4096 Jun 17 11:42 public
-rwxrwxrwx 1 root root 1465 Jun 17 11:42 q.twig
drwxrwxrwx 5 root root 4096 Jun 17 11:42 resources
drwxrwxrwx 2 root root 4096 Jun 17 11:42 routes
-rwxrwxrwx 1 root root 563 Jun 17 11:42 server.php
drwxrwxrwx 6 root root 4096 Jun 17 11:42 storage
drwxrwxrwx 4 root root 4096 Jun 17 11:42 tests
drwxrwxrwx 46 root root 4096 Jun 17 11:58 vendor
-rwxrwxrwx 1 root root 1549 Jun 17 11:42 webpack.mix.js
-rwxrwxrwx 1 root root 204808 Jun 17 11:42 yarn.lock
2）我删除了dirs：
rm -R vendor
rm -R /home/ubuntu/.composer
然后在我的应用中运行
composer install
我的项目已成功安装。 您能否给出一些解释，为什么呢？
谢谢！
答案 0 :(得分：0)
如果出现拒绝权限，则可以使用sudo composer update。或者您应该像composer global require laravel/installer这样全局地添加composer，并且可以从任何地方轻松访问composer，还可以尝试更改sudo chown -R user:user project