Warning: require_once(PLUSPEOPLE/autoload.php): failed to open stream -

i trying install money transfer api called "pesapi"
this how error displayed.

<?php namespace pluspeople\pesapi; set_include_path("..local_include:../include:" . get_include_path());  require_once("pluspeople/autoload.php"); 

maybe running on windows?

replace : path_separator in set_include_path. this:

set_include_path("../local_include" . path_separator . "../include" . path_separator . get_include_path()); 

the path separator windows ; , not :