Call to a member function GetInnerText() on a non-object dede 添加自定义字段后 文章列表页生成失败 list

比如内容模型：文章列表的添加了自定义字段后，在列表页用{dede:list}的时候，生成时错误：Call to a member function GetInnerText() on a non-object

解决办法：

DedeCms 5.5 在更新列表页时提示：Fatal error: Call to a member function GetInnerText() on a non-object in \include\taglib\channel\img.lib.php on line 42这个错误提示会在更新自定义模型栏目列表的时候出现，修复此问题方法很简单 零度科技提供技术支持

将 $innerTmp = $arcTag->GetInnerText(); 替换为
$innerTmp = ($arcTag=="") ? trim($arcTag) : trim($arcTag->GetInnerText()); if($arcTag==""){
$innerTmp = trim($arcTag);
}
else{
$innerTmp = trim($arcTag->GetInnerText());
}