message: Check Angular dependencies only when source folder exists
  (will not be the case on Docker or in pre-packaged ZIPs)
diff: @@ -75,6 +75,9 @@ const dataExport = require('./routes/dataExport')
  errorhandler.title = `${config.get('application.name')} (Express ${utils.version('express')})`
  +if (fs.existsSync(path.resolve(__dirname, 'frontend/src'))) {
  + require('./lib/startup/validateDependencies')({ packageDir: './frontend' })
  +}
  require('./lib/startup/validatePreconditions')()
  require('./lib/startup/validateConfig')()
  require('./lib/startup/cleanupFtpFolder')()
  