我最近将我的 Ubuntu 服务器从 14.04 更新到 16.04，但是现在当我尝试使用 Rocketeer 进行部署时，我得到了下面的错误显示，但是尽管有这些错误，但似乎部署仍在继续并成功完成。
PHP Warning: unpack(): Type N: not enough input, need 4, have 1 in phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/vendor/phpseclib/phpseclib/phpseclib/Net/SSH2.php on line 2826
PHP Stack trace:
PHP 1. {main}() /Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar:0
PHP 2. require() /Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar:16
PHP 3. Rocketeer\Facades\Console::run() phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/bin/rocketeer:26
PHP 4. Illuminate\Support\Facades\Facade::__callStatic($method = *uninitialized*, $args = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/bin/rocketeer:26
PHP 5. Symfony\Component\Console\Application->run($input = *uninitialized*, $output = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/vendor/illuminate/support/Illum
inate/Support/Facades/Facade.php:205
PHP 6. Symfony\Component\Console\Application->doRun($input = *uninitialized*, $output = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/vendor/symfony/console/Symfon
y/Component/Console/Application.php:124
PHP 7. Symfony\Component\Console\Application->doRunCommand($command = *uninitialized*, $input = *uninitialized*, $output = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer
.phar/vendor/symfony/console/Symfony/Component/Console/Application.php:193
PHP 8. Illuminate\Console\Command->run($input = *uninitialized*, $output = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/vendor/symfony/console/Symfony/Component/C
onsole/Application.php:889
PHP 9. Symfony\Component\Console\Command\Command->run($input = *uninitialized*, $output = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/vendor/illuminate/console/I
lluminate/Console/Command.php:100
PHP 10. Illuminate\Console\Command->execute($input = *uninitialized*, $output = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/vendor/symfony/console/Symfony/Compone
nt/Console/Command/Command.php:253
PHP 11. Rocketeer\Console\Commands\DeployCommand->fire() phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/vendor/illuminate/console/Illuminate/Console/Command.php:112
PHP 12. Rocketeer\Abstracts\AbstractCommand->fireTasksQueue($tasks = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Console/Commands/DeployCommand.php:
39
PHP 13. Rocketeer\Abstracts\AbstractCommand->time($callback = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Abstracts/AbstractCommand.php:176
PHP 14. Rocketeer\Abstracts\AbstractCommand->Rocketeer\Abstracts\{closure}() phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Abstracts/AbstractCommand.php:270
PHP 15. Rocketeer\Services\Tasks\TasksQueue->run($tasks = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Abstracts/AbstractCommand.php:173
PHP 16. Rocketeer\Services\Tasks\TasksQueue->runSynchronously($pipeline = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Services/Tasks/TasksQueue.php:
130
PHP 17. Rocketeer\Services\Tasks\TasksQueue->Rocketeer\Services\Tasks\{closure}() phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Services/Tasks/TasksQueue.php:222
PHP 18. Rocketeer\Services\Tasks\TasksQueue->executeJob($job = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Services/Tasks/TasksQueue.php:122
PHP 19. Rocketeer\Abstracts\AbstractTask->fire() phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Services/Tasks/TasksQueue.php:190
PHP 20. Rocketeer\Services\Display\QueueTimer->time($task = *uninitialized*, $callback = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Abstracts/Abstr
actTask.php:144
PHP 21. Rocketeer\Abstracts\AbstractTask->Rocketeer\Abstracts\{closure}() phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Services/Display/QueueTimer.php:39
PHP 22. Rocketeer\Tasks\Deploy->execute() phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Abstracts/AbstractTask.php:143
PHP 23. Rocketeer\Bash->isSetup() phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Tasks/Deploy.php:37
PHP 24. Rocketeer\Bash->fileExists($file = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Traits/BashModules/Flow.php:34
PHP 25. Rocketeer\Bash->checkStatement($condition = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Traits/BashModules/Filesystem.php:148
PHP 26. Rocketeer\Bash->runRaw($commands = *uninitialized*, $array = *uninitialized*, $trim = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Traits/Bas
hModules/Filesystem.php:270
PHP 27. Rocketeer\Services\Connections\RemoteHandler->run(*uninitialized*, *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Traits/BashModules/Core.php:1
56
PHP 28. Rocketeer\Services\Connections\RemoteHandler->__call($method = *uninitialized*, $parameters = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Tr
aits/BashModules/Core.php:156
PHP 29. call_user_func_array:{phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Services/Connections/RemoteHandler.php:149}(*uninitialized*, *uninitialized*) phar:///Users
/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Services/Connections/RemoteHandler.php:149
PHP 30. Illuminate\Remote\Connection->run($commands = *uninitialized*, $callback = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/src/Rocketeer/Services/Connections/
RemoteHandler.php:149
PHP 31. Illuminate\Remote\Connection->getGateway() phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/vendor/illuminate/remote/Illuminate/Remote/Connection.php:109
PHP 32. Illuminate\Remote\SecLibGateway->connect($username = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/vendor/illuminate/remote/Illuminate/Remote/Connection.php
:231
PHP 33. Net_SFTP->login($username = *uninitialized*, *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/vendor/illuminate/remote/Illuminate/Remote/SecLibGateway.php:86
PHP 34. Net_SSH2->_get_channel_packet($client_channel = *uninitialized*, $skip_extended = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/vendor/phpseclib/phpseclib/p
hpseclib/Net/SFTP.php:441
PHP 35. Net_SSH2->_get_binary_packet() phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/vendor/phpseclib/phpseclib/phpseclib/Net/SSH2.php:2974
PHP 36. Net_SSH2->_filter($payload = *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/vendor/phpseclib/phpseclib/phpseclib/Net/SSH2.php:2771
PHP 37. unpack(*uninitialized*, *uninitialized*) phar:///Users/toby/src/bitbucket.org/limtool/limtool/rocketeer.phar/vendor/phpseclib/phpseclib/phpseclib/Net/SSH2.php:2826
我试过调试，但看起来 phpseclib 包从 SSH2 连接中提取了二进制字符串，我不知道从哪里开始调试。
可能与openssl的更新版本有关吗？
这是它正在使用的软件包和版本的列表……</p>
anahkiasen/rocketeer 2.2.3 Rocketeer is a fast and simple deployer for the PHP world
d11wtq/boris v1.0.10 A tiny, but robust REPL (Read-Evaluate-Print-Loop) for PHP.
illuminate/config v4.2.17
illuminate/console v4.2.17
illuminate/container v4.2.17
illuminate/events v4.2.17
illuminate/filesystem v4.2.17
illuminate/log v4.2.17
illuminate/remote v4.2.16
illuminate/support v4.2.17
kzykhys/parallel v0.1.0 Simple multitasking library
monolog/monolog 1.20.0 Sends your logs to files, sockets, inboxes, databases and vario...
nesbot/carbon 1.21.0 A simple API extension for DateTime.
patchwork/utf8 v1.3.1 Portable and performant UTF-8, Unicode and Grapheme Clusters fo...
phpseclib/phpseclib 0.3.10 PHP Secure Communications Library - Pure-PHP implementations of...
psr/log 1.0.0 Common interface for logging libraries
symfony/console v2.5.12 Symfony Console Component
symfony/finder v2.5.12 Symfony Finder Component
symfony/polyfill-mbstring v1.2.0 Symfony polyfill for the Mbstring extension
symfony/translation v3.1.2 Symfony Translation Component
如果有人可以建议如何进行，我很乐意进行更多调试。
任何帮助是极大的赞赏。