Mupx setup complains about ssh2?

$ npm install ssh2-streams
spark2acs@1.0.0 /Users/sebastien.cheung/spark2acs
├── UNMET PEER DEPENDENCY react@15.3.1
└── ssh2-streams@0.1.7

npm WARN formsy-react@0.17.0 requires a peer of react@^0.14.0 but none was installed.

Does it mean it is installed or not?

which ssh2-streams returns empty?

Because when doing a MeteorJS mupx setup:

$ mupx setup

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Configuration file : mup.json
Settings file : settings.json

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Started TaskList: Setup (linux)
[] - Installing Docker
throw er; // Unhandled 'error' event

Error: All configured authentication methods failed
at tryNextAuth (/usr/local/lib/node_modules/mupx/node_modules/ssh2/lib/client.js:290:17)
at SSH2Stream.onUSERAUTH_FAILURE (/usr/local/lib/node_modules/mupx/node_modules/ssh2/lib/client.js:469:5)
at emitTwo (events.js:87:13)
at SSH2Stream.emit (events.js:172:7)
at parsePacket (/usr/local/lib/node_modules/mupx/node_modules/ssh2-streams/lib/ssh.js:3647:10)
at SSH2Stream._transform (/usr/local/lib/node_modules/mupx/node_modules/ssh2-streams/lib/ssh.js:551:13)
at SSH2Stream.Transform._read (_stream_transform.js:167:10)
at SSH2Stream._read (/usr/local/lib/node_modules/mupx/node_modules/ssh2-streams/lib/ssh.js:212:15)
at SSH2Stream.Transform._write (_stream_transform.js:155:12)
at doWrite (_stream_writable.js:300:12)

I’m having the same problem.
Did you find a solution?