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无法下载作曲家

tag-icon • tag-icon software-installation php composer
无法下载作曲家

下载作曲家时我遇到了此类错误。

php composer-setup.php
All settings correct for using Composer
PHP Warning:  file_put_contents(/home/vasu/.composer/keys.dev.pub): failed to open stream: Permission denied in /home/vasu/composer-setup.php on line 468
PHP Warning:  file_put_contents(/home/vasu/.composer/keys.tags.pub): failed to open stream: Permission denied in /home/vasu/composer-setup.php on line 485
Downloading 1.2.0...
PHP Warning:  openssl_verify(): supplied key param cannot be coerced into a public key in /home/vasu/composer-setup.php on line 576
PHP Warning:  openssl_free_key() expects parameter 1 to be resource, boolean given in /home/vasu/composer-setup.php on line 577
Signature mismatch, could not verify the phar file integrity

答案1

简单的方法

首先尝试简单的方法。由于评论中提到的错误消息，本答案中包含了困难的方法。

sudo mkdir -p /usr/local/bin  
sudo apt-get install curl
curl -sS https://getcomposer.org/installer | php   
sudo mv composer.phar /usr/local/bin/composer

在 Ubuntu 16.04 及更高版本中，可以从默认的 Ubuntu 存储库安装 Composer。打开终端并输入：

sudo apt install composer

艰辛的道路

首先检查是否/usr/local/bin/存在，如果不存在则创建/usr/local/bin/目录。

sudo mkdir -p /usr/local/bin

如果/usr/local/bin/已经存在，上述命令将不执行任何操作，除了返回此消息：

mkdir: cannot create directory ‘/usr/local/bin’: File exists

运行以下命令：

sudo chmod -R 755 /usr/local/bin/  
cd /usr/local/bin/
ls # list the old composer file(s)
sudo rm <old-composer-files> # delete the old composer file(s)
sudo apt-get install curl
curl -sS https://getcomposer.org/installer | php   
sudo mv composer.phar /usr/local/bin/composer

然后，如果您composer在终端中输入，它将在您的系统中全局可访问。

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