This is what happens when invoking start (the problem is that the .bin/electrium path is not found due to the fact that is exists on the top level node_modules folder (vs the electrium's node_module's folder)

here is a test that isolates the issue

here is a test that replicates the problem
it 'open', (done)->
Spectron_API = require('electrium').Spectron_API
spectron = new Spectron_API();
spectron.setup().start().catch (err)->
err.message.assert_Contains "ENOENT: no such file or directory"
done()
return