fix reject statement

Author: 07souravkunda

bin/helpers/packageInstaller.js

@@ -70,7 +70,7 @@ const packageInstall = (packageDir) => {
     };
     const nodeProcessErrorCallback = (error) => {
       logger.error(`Some error occurred while installing packages: %j`, error);
-      reject(`Packages were not installed successfully. Error Description %j`, error);
+      reject(`Packages were not installed successfully. Error Description ${util.format('%j', error)}`);
     };
     nodeProcess = spawn(/^win/.test(process.platform) ? 'npm.cmd' : 'npm', ['install', '--loglevel', 'verbose', '>', '../npm_install_debug.log', '2>&1'], {cwd: packageDir, shell: true});
     nodeProcess.on('close', nodeProcessCloseCallback);