Invalid argument supplied for foreach()

Call Stack

1. in 8edf8e2d725952ebfdf1da5596458aa6.php line 114
2. at Error::appError(2, 'Invalid argument sup...', '/home/wwwroot/www.sh...', 114, ['cacheFile' => '/home/wwwroot/www.sh...', 'vars' => ['classuri' => 'index/category', 'vo' => ['id' => 17, 'name' => '公司新闻', 'parent' => 1, ...], 'title' => '公司新闻', ...], 'classuri' => 'index/category', ...]) in 8edf8e2d725952ebfdf1da5596458aa6.php line 114
3. at include('/home/wwwroot/www.sh...') in File.php line 59
4. at File->read('/home/wwwroot/www.sh...', ['classuri' => 'index/category', 'vo' => ['id' => 17, 'name' => '公司新闻', 'parent' => 1, ...], 'title' => '公司新闻', ...]) in Template.php line 226
5. at Template->fetch('/home/wwwroot/www.sh...', ['classuri' => 'index/category', 'vo' => ['id' => 17, 'name' => '公司新闻', 'parent' => 1, ...], 'title' => '公司新闻', ...], []) in Think.php line 93
6. at Think->fetch('/home/wwwroot/www.sh...', ['classuri' => 'index/category', 'vo' => ['id' => 17, 'name' => '公司新闻', 'parent' => 1, ...], 'title' => '公司新闻', ...], []) in View.php line 192
7. at View->fetch('lists', ['classuri' => 'index/category', 'vo' => ['id' => 17, 'name' => '公司新闻', 'parent' => 1, ...], 'title' => '公司新闻', ...], [], false) in View.php line 42
8. at View->output('lists') in Response.php line 396
9. at Response->getContent() in Response.php line 128
10. at Response->send() in index.php line 18