A Javascript error occurred in the process: The Application could not be started at Socket

Question

I am trying to trigger a java backend process from an electron app using "child_process.spawn" . The java backend process is a .exe generated using launch4J. The application runs without any issues in dev mode but the packaged electron application keeps throwing this error when run in a different setup.

This is what the code to trigger the backend process looks like

function invokeJavaBackend() {
  const javaBackendProcess = spawn(exePath, { shell: true });
  javaBackendProcess.stdout.on("data", (data) => {
    win && win.webContents.send("java-backend-response", data.toString());
    log.info(data.toString());
  });

  javaBackendProcess.stderr.on("data", (data) => {
    log.info(data);
    setTimeout(function () {
      app.exit();
    }, 1000);
    throw new Error("The Application could not be started");
  });

  javaBackendProcess.on("close", (code) => {
    log.info("Java Backend child process exited with code ", code);
  });
}