childProcess.spawn fails when `env` is specified
You can override the PORT even without passing env, using /usr/bin/env
const child = childProcess.spawn('env', ['PORT=4545', 'npm', 'run', taskName], { cwd: `${parentPath}/${projectId}`,});If you haven't checked process.env, make sure you override PATH with a known-good value.
const child = childProcess.spawn('npm', ['run', taskName], { cwd: `${parentPath}/${projectId}`, env: { PATH: '/bin:/usr/bin:/usr/local/bin', PORT: 4545, }});