Warning: node.js detection failed, sbt will use the Rhino based Trireme JavaScript engine

Question

I\'m new to Play framework. Please explain the meaning of the below warning.

Warning: node.js detection failed, sbt will use the Rhino based Trireme J

Answer 1

in ubuntu

curl -sL https://deb.nodesource.com/setup | sudo bash -

sudo apt-get install -y nodejs

then add as above to your .profile in your home directory

export SBT_OPTS="${SBT_OPTS} -Dsbt.jse.engineType=Node -Dsbt.jse.command=$(which node)"

then

 . ./.profile 

to reload your .profile

For a more flexible install using node version manager check the following tutorial: how to install node js on an ubuntu 14.04 server

Build again and the warning about using the Trireme stuff should be gone.