Error To Run Command ./yii Migrate

Yii 1.1 Installation and Setup
1

Dear all,

I’ve downloaded Yii 2.0 Framework and try to install follow the instruction, but I got error as bellow when I run command : $ ./yii migrate in mac terminate.

PHP Parse error: syntax error, unexpected ‘’ in /Volumes/DATA/htdocs/advanced/vendor/autoload.php on line 8

PHP Stack trace:

PHP 1. {main}() /Volumes/DATA/htdocs/advanced/yii:0

Parse error: syntax error, unexpected ‘’ in /Volumes/DATA/htdocs/advanced/vendor/autoload.php on line 8

Call Stack:

0.0002     234624   1. {main}() /Volumes/DATA/htdocs/advanced/yii:0

Please help me how can I do?