第2032行的C：\ xampp \ php \ pear \ HTML \ QuickForm.php中找不到类'PEAR_Error'

Question

xampp

当我使用' get the directory representing this node Dim mnodedirectory As IO.DirectoryInfo mnodedirectory = New IO.DirectoryInfo(e.Node.Tag.ToString) ' add each subdirectory from the file system to the expanding node as a child node For Each mdirectory As IO.DirectoryInfo In mnodedirectory.GetDirectories ' declare a child treenode for the next subdirectory Dim mdirectorynode As New TreeNode ' store the full path to this directory in the child treenode's tag property mdirectorynode.Tag = mdirectory.FullName ' set the child treenodes's display text mdirectorynode.Text = mdirectory.Name ' add a dummy treenode to this child treenode to make it expandable mdirectorynode.Nodes.Add("*temp*") ' add this child treenode to the expanding treenode e.Node.Nodes.Add(mdirectorynode) Next For Each mfile As IO.FileInfo In mnodedirectory.GetFiles Dim mfilesnode As New TreeNode mfilesnode.Tag = mfile.FullName mfilesnode.Text = mfile.Name mnodedirectory.nodes.add(mfilesnode) Next 执行上述代码时，我收到错误

  

在第2032行的C：\ xampp \ php \ pear \ HTML \ QuickForm.php中找不到类'PEAR_Error'

如何克服此错误？

Answer 1

添加

require_once 'PEAR.php';

到文件的顶部。