我本地先更新了composer中一个包，然后执行命令composer install --ignore-platform-reqs，发布到其他环境，由于其他环境已经存在这个旧版本的包会自动更新后进行了update导致报错，以下是报错信息。
望大佬们解答
$ composer install --ignore-platform-reqs
Do not run Composer as root/super user! See https://getcomposer.org/root for details
Loading composer repositories with package information
Installing dependencies (including require-dev) from lock file
Package operations: 1 install, 15 updates, 0 removals
- Updating xxx/xxx (0.2.0 => 0.3.1): Checking out 9122d8ddce
[RuntimeException]
Failed to execute git remote set-url composer 'git@xxx.com:xxx/xxx.git' && git rev-parse --quiet --verify '9122d8ddceaf44eae4205cbdea0bf2b48cf8xxxx^{commit}' || (git fetch composer && git fetch --tags composer)
Permission denied (publickey,gssapi-keyex,gssapi-with-mic).
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
install [--prefer-source] [--prefer-dist] [--dry-run] [--dev] [--no-dev] [--no-custom-installers] [--no-autoloader] [--no-scripts] [--no-progress] [--no-suggest] [-v|vv|vvv|--verbose] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--apcu-autoloader] [--ignore-platform-reqs] [--] [<packages>]...
