The engine "node" is incompatible with this module

[Alice Liu]

Our project is mainly Javascript built using yarn. I just added this to our project's `package.json`:

"engines" : { "node" : "10.16.2" }

When I try to commit or push in SourceTree, I get following error:

The engine "node" is incompatible with this module. Expected version "10.16.2". Got "12.6.0"

error Commands cannot run with an incompatible environment.

error: failed to push some refs to '[git repo url]'

Doing so on CLI works fine. Terminal runs on following Node version:

$ nvm version

v10.16.2

How do I ensure Sourcetree uses right Node version?

[Alice Liu · Accepted solution]

Works after I changed default node version to 10.16.3 (or equivalent alias):

$ nvm alias default 10.16.3