I am using Intellij 2020.1.4,AEM 6.5 on mac. I see that the vault was missing so i downloaded vault-cli-3.4.4.I am trying to pull content from CRX . I see this error Connecting via JCR remoting to http://localhost:4504/crx/server [ERROR] checkout: java.lang.NullPointerException: null . I have my vault dir pointed to this vault-cli.
Try using lower version of IntelliJ, or use the 3.1.16 version of the filevault to pull code from crx. I am currently using ths combination of IntelliJ 2018.3.4 and vault-cli-3.1.6. It works absolutely great with AEM 6.5.5 and archetype 22. You can refer to my post on the same : IntelliJ Setup