解决方法：
Open Help -> Find Action -> Registry and disable sshj:
ide.ssh.library.backend.use.sshjide.ssh.library.backend.webDeployment.use.sshj
These two keys are enabled in 2019.2.
So, you should find them and disable.
原文：https://www.cnblogs.com/Bella2017/p/11620398.html