上传主题遇到麻烦，请各位老大帮忙看看

[baybei]

我在上传主题zip的文件时候遇到问题，请各位老大帮忙看看是哪里出了问题，错误提示如下：
Exception message: exec() [function.exec]: Unable to fork [/usr/bin/unzip -o ./tmp/andreas-3-columns.zip -d ./tmp/e58100e7cd3711ff1542692f4a9a6fb5/]
Error code: 2
-- Backtrace --
e:\webhost\baybei\web\class\file\unpacker\zipunpacker.class.php(59): exec
e:\webhost\baybei\web\class\file\unpacker\unpacker.class.php(136): zipunpacker.unpack
e:\webhost\baybei\web\class\template\templatesandbox.class.php(90): unpacker.unpack
e:\webhost\baybei\web\class\action\admin\adminaddblogtemplateaction.class.php(85): templatesandbox.checktemplateset
e:\webhost\baybei\web\class\action\admin\adminaddblogtemplateaction.class.php(210): adminaddblogtemplateaction._performuploadtemplate
e:\webhost\baybei\web\class\controller\controller.class.php(310): adminaddblogtemplateaction.perform
e:\webhost\baybei\web\admin.php(43): admincontroller.process

Exception message: Cannot modify header information - headers already sent by (output started at e:\webhost\baybei\web\class\object\exception.class.php:39)
Error code: 2
-- Backtrace --
e:\webhost\baybei\web\class\view\view.class.php(323): header
e:\webhost\baybei\web\class\view\admin\adminview.class.php(112): view.render
e:\webhost\baybei\web\class\view\admin\admintemplatedview.class.php(36): adminview.render
e:\webhost\baybei\web\class\view\admin\adminblogtemplatesetslistview.class.php(27): admintemplatedview.render
e:\webhost\baybei\web\class\controller\controller.class.php(330): adminblogtemplatesetslistview.render
e:\webhost\baybei\web\admin.php(43): admincontroller.process

Exception message: Cannot modify header information - headers already sent by (output started at e:\webhost\baybei\web\class\object\exception.class.php:39)
Error code: 2
-- Backtrace --
e:\webhost\baybei\web\class\view\view.class.php(323): header
e:\webhost\baybei\web\class\view\admin\adminview.class.php(112): view.render
e:\webhost\baybei\web\class\view\admin\admintemplatedview.class.php(36): adminview.render
e:\webhost\baybei\web\class\view\admin\adminblogtemplatesetslistview.class.php(27): admintemplatedview.render
e:\webhost\baybei\web\class\controller\controller.class.php(330): adminblogtemplatesetslistview.render
e:\webhost\baybei\web\admin.php(43): admincontroller.process

Exception message: Cannot modify header information - headers already sent by (output started at e:\webhost\baybei\web\class\object\exception.class.php:39)
Error code: 2
-- Backtrace --
e:\webhost\baybei\web\class\view\view.class.php(323): header
e:\webhost\baybei\web\class\view\admin\adminview.class.php(112): view.render
e:\webhost\baybei\web\class\view\admin\admintemplatedview.class.php(36): adminview.render
e:\webhost\baybei\web\class\view\admin\adminblogtemplatesetslistview.class.php(27): admintemplatedview.render
e:\webhost\baybei\web\class\controller\controller.class.php(330): adminblogtemplatesetslistview.render
e:\webhost\baybei\web\admin.php(43): admincontroller.process

Exception message: Cannot modify header information - headers already sent by (output started at e:\webhost\baybei\web\class\object\exception.class.php:39)
Error code: 2
-- Backtrace --
e:\webhost\baybei\web\class\view\view.class.php(323): header
e:\webhost\baybei\web\class\view\admin\adminview.class.php(112): view.render
e:\webhost\baybei\web\class\view\admin\admintemplatedview.class.php(36): adminview.render
e:\webhost\baybei\web\class\view\admin\adminblogtemplatesetslistview.class.php(27): admintemplatedview.render
e:\webhost\baybei\web\class\controller\controller.class.php(330): adminblogtemplatesetslistview.render
e:\webhost\baybei\web\admin.php(43): admincontroller.process

Exception message: Cannot modify header information - headers already sent by (output started at e:\webhost\baybei\web\class\object\exception.class.php:39)
Error code: 2
-- Backtrace --
e:\webhost\baybei\web\class\view\view.class.php(323): header
e:\webhost\baybei\web\class\view\admin\adminview.class.php(112): view.render
e:\webhost\baybei\web\class\view\admin\admintemplatedview.class.php(36): adminview.render
e:\webhost\baybei\web\class\view\admin\adminblogtemplatesetslistview.class.php(27): admintemplatedview.render
e:\webhost\baybei\web\class\controller\controller.class.php(330): adminblogtemplatesetslistview.render
e:\webhost\baybei\web\admin.php(43): admincontroller.process

Exception message: Cannot modify header information - headers already sent by (output started at e:\webhost\baybei\web\class\object\exception.class.php:39)
Error code: 2
-- Backtrace --
e:\webhost\baybei\web\class\view\view.class.php(175): header
e:\webhost\baybei\web\class\view\view.class.php(325): adminblogtemplatesetslistview.sendcontenttype
e:\webhost\baybei\web\class\view\admin\adminview.class.php(112): view.render
e:\webhost\baybei\web\class\view\admin\admintemplatedview.class.php(36): adminview.render
e:\webhost\baybei\web\class\view\admin\adminblogtemplatesetslistview.class.php(27): admintemplatedview.render
e:\webhost\baybei\web\class\controller\controller.class.php(330): adminblogtemplatesetslistview.render
e:\webhost\baybei\web\admin.php(43): admincontroller.process

[baybei]

已经自己解决，原来是虚拟主机不支持解压~~，呵呵