dyld：懒惰的符号绑定失败：找不到符号：_clock_gettime-在mongodb laravel中

我正在使用Laravel 5.4版本通过link实现mongodb CRUD操作。我正在使用Mac OS El Captain 10.11。我已经安装了php版本7.1.16的mongodb.so扩展名

当我尝试进行雄辩的连接时，它会引发我ERR_EMPTY_RESPONSE

我详细了解了重启MAMP服务器期间在Apache中发现的以下错误日志

 Mon Aug 28 10:22:14 2017] [notice] Graceful restart requested, doing restart
[Mon Aug 28 10:22:15 2017] [notice] Digest: generating secret for digest authentication ...
[Mon Aug 28 10:22:15 2017] [notice] Digest: done
[Mon Aug 28 10:22:15 2017] [notice] Apache/2.2.31 (Unix) mod_wsgi/3.5 
 Python/2.7.13 PHP/7.1.1 mod_ssl/2.2.31 OpenSSL/1.0.2j DAV/2 
mod_fastcgi/2.4.6 mod_perl/2.0.9 Perl/v5.24.0 configured -- resuming normal operations
[Mon Aug 28 10:22:15 2017] [notice] FastCGI: process manager initialized (pid 4233)
dyld: lazy symbol binding failed: Symbol not found: _clock_gettime
Referenced from: 
/Applications/MAMP/bin/php/php7.1.1/lib/php/extensions/no-debug-non-zts-20160303/mongodb.so
Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: _clock_gettime
Referenced from: 
/Applications/MAMP/bin/php/php7.1.1/lib/php/extensions/no-debug-non-zts-20160303/mongodb.so
Expected in: /usr/lib/libSystem.B.dylib

dyld: lazy symbol binding failed: Symbol not found: _clock_gettime
Referenced from: 
 /Applications/MAMP/bin/php/php7.1.1/lib/php/extensions/no-debug-non-zts-20160303/mongodb.so
 Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: _clock_gettime
Referenced from: 
/Applications/MAMP/bin/php/php7.1.1/lib/php/extensions/no-debug-non-zts-20160303/mongodb.so
 Expected in: /usr/lib/libSystem.B.dylib

该屏幕快照显示了我在线搜索错误dyld: lazy symbol binding failed: Symbol not found: _clock_gettime并找到此答案的mongodb扩展的详细信息。我已经应用了我提到的所有步骤，但是无法解决该问题。

请有人帮我摆脱这个。