Invalid argument supplied for foreach()

Call Stack

1. in Base.php line 50
2. at Error::appError(2, 'Invalid argument sup...', '/www/wwwroot/default...', 50, ['tpshop_config' => [], 'tp_config' => null]) in Base.php line 50
3. at Base->public_assign() in Base.php line 41
4. at Base->_initialize() in Controller.php line 84
5. at Controller->__construct() in UploadPic.php line 27
6. at UploadPic->__construct()
7. at ReflectionClass->newInstanceArgs([]) in App.php line 362
8. at App::invokeClass('app\home\controller\...') in Loader.php line 459
9. at Loader::controller('UploadPic', 'controller', false, 'Error') in App.php line 576
10. at App::module(['home', 'UploadPic', 'goods_thum_images'], ['app_host' => '', 'app_debug' => true, 'app_trace' => false, ...], false) in App.php line 459
11. at App::exec(['type' => 'module', 'module' => ['home', 'UploadPic', 'goods_thum_images']], ['app_host' => '', 'app_debug' => true, 'app_trace' => false, ...]) in App.php line 142
12. at App::run() in start.php line 19
13. at require('/www/wwwroot/default...') in index.php line 60