I wrote a vistype plugin on k4.3, and then try to upgrade to the latest k4.4.1. But then I found even the elastic/timelion install was failed on K4.4.1:
➜ kibana-4.4.1-darwin-x64 ./bin/kibana plugin -i elastic/timelion
Installing timelion
Attempting to transfer from https://download.elastic.co/elastic/timelion/timelion-latest.tar.gz
Transferring 3382571 bytes....................
Transfer complete
Extracting plugin archive
Extraction complete
Optimizing and caching browser bundles...
Plugin installation was unsuccessful due to error "Cannot read property 'error' of undefined"
➜ kibana-4.4.1-darwin-x64
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