fixed unhandled rejection issue (#107)

Author: zxan1285

CHANGELOG.md

@@ -4,7 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [3.1.0] - Unreleased
+## [3.1.1] - Unreleased
+### Fixed
+- Exit status code on error
+
+## [3.1.0] - 2019-03-14
 ### Added
 - `AUTH0_EXCLUDED_CLIENTS` option has been added to the config. Works similar to `AUTH0_EXCLUDED_RULES` and `AUTH0_EXCLUDED_RESOURCE_SERVERS`. #102
 

src/index.js

@@ -68,7 +68,7 @@ if (require.main === module) {
         log.debug(error.stack);
       }
 
-      if (msg.includes('Payload validation error')) {
+      if (typeof msg === 'string' && msg.includes('Payload validation error')) {
         log.info('Please see https://github.com/auth0/auth0-deploy-cli#troubleshooting for common issues');
       }
       process.exit(1);