未知无法查询docker版本：无法读取TLS config：tls：未能在证书input中find任何PEM数据

我遇到了一个奇怪的问题，我试着把它发布在github上，所以我不妨在这里问它。

➜ ~ docker-machine version docker-machine version 0.8.2, build e18a919 ➜ ~ docker-machine ls NAME ACTIVE DRIVER STATE URL SWARM DOCKER ERRORS atago - google Running tcp://xxx.xxx.xxx.xxx:2376 Unknown Unable to query docker version: Unable to read TLS config: tls: failed to find any PEM data in certificate input azure01 - azure Running tcp://xxx.xx.xxx.xxx:2376 Unknown Unable to query docker version: Unable to read TLS config: tls: failed to find any PEM data in certificate input dev - virtualbox Stopped Unknown dev01 - google Unknown jeanepaul-dev - google Running tcp://xxx.xxx.xxx.xx:2376 Unknown Unable to query docker version: Unable to read TLS config: tls: failed to find any PEM data in certificate input 

我试图再生证书，但是，

 ➜ ~ docker-machine regenerate-certs -f azure01 Regenerating TLS certificates Waiting for SSH to be available... Detecting the provisioner... Installing Docker... Copying certs to the local machine directory... error generating server cert: tls: failed to parse private key