Open Terminal failed with osascript after electron-packager - node.js

Question

When I try to execute an osascript command under my Electron project, it works under dev mode(1), but after building it with electron-packager(2) and executing the binary file, an error appears.
It works with this execution command to debug:
# electron .
It fails with this compilation command to package the project:
# electron-packager . MyProject --platform=darwin --arch=x64 --version=1.3.5 --overwrite
This is the source code:
var childProcess = require('child_process');
var script = "/usr/bin/osascript -e 'tell application \"Terminal\"' -e 'set newTab to do script' -e 'end tell'";
childProcess.exec(script, function(error, stdout, stderr) {
console.log('stdout: ' + stdout);
console.log('stderr: ' + stderr);
if (error !== null) {
console.log('exec error: ' + error);
}
});
Console displays this error:
stdout:
stderr: 45:51: syntax error: Expected end of line but found “script”. (-2741)
exec error: Error: Command failed: /usr/bin/osascript -e 'tell application "Terminal"' -e 'set newTab to do script' -e 'end tell'
45:51: syntax error: Expected end of line but found “script”. (-2741)
BUT
The same source code works after packager if the script variable is equal to:
var script = "/usr/bin/osascript -e 'get volume settings'";
My Env
My node version: v4.5.0
My electron version: v1.3.5