error in console
shubhabrata@shubhabrata-VirtualBox:~/Meteor/myapp$ mupx deploy
Configuration file : mup.json Settings file : settings.json
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Meteor app path : /home/shubhabrata/Meteor/myapp Using buildOptions : {} buffer.js:80 throw new Error( ^
Error: If encoding is specified then the first argument must be a string at new Buffer (buffer.js:80:13) at Readable. (/usr/lib/node_modules/mupx/node_modules/archiver/lib/util/index.js:32:15) at emitNone (events.js:91:20) at Readable.emit (events.js:188:7) at endReadableNT (_stream_readable.js:975:12) at _combinedTickCallback (internal/process/next_tick.js:80:11) at process._tickCallback (internal/process/next_tick.js:104:9)
Switching from node 7 to node 5.12 worked for me. I installed using nvm so that I can use later node versions in the future.
This occurred for me while using (deliberately) an old version of mup. It could well be that just upgrading mup will fix the problem.