Cannot find the "[ WebButton ]" object's parent "[ Page ]" (class Page)

[sumitparolkar@gmail.com]

I am beginner and trying keyword driven framework.. here is my script for login to Gmail account.

Code:

******initiate variable****
ExecuteFile "F:\Scripts\Login\Constant\OR Constants.vbs"
Systemutil.Run "www.gmail.com"
'**************Add a new sheet and import keywords**********
Set dtKeyWord = DataTable.AddSheet("Keywords")
DataTable.ImportSheet "F:\Scripts\Login\KeyWords\ScriptKeywords.xls","sheet1","Keywords"
dtRowCount = dtKeyWord.GetRowCount
msgbox(dtRowCount)
dtColumnCount = dtKeyWord.GetParameterCount
msgbox(dtColumnCount)
'Use for loop to get values row by row
For dtRow=1 to dtRowCount
           dtKeyWord.SetCurrentRow(dtRow)
                 strObjClass  =               DataTable("ObjectClass","Keywords")
                 strObjProperties = DataTable("ObjectProperties","Keywords")
                 strOperation =               DataTable("Operation","Keywords")
                 strValue =                       DataTable("Value","Keywords")
If strOperation = "SetParent" Then
                oParentObjectArray = Split(strObjClass, "/")
                oParentObjectPropArray  = Split(strObjProperties, "/")
                For iparentCount = 0 to ubound(oParentObjectArray)
                        iParent = oParentObjectArray(iparentCount)
                        msgbox(iParent)
                        iParentProp = oParentObjectPropArray(iparentCount)
                        msgbox(iParentProps)
                      If  iparentCount = ubound(oParentObjectArray)  Then
                          strParent =  strParent&iParent&"("&""""&eval(iParentProp)&""""&")"
                          msgbox(strParent)
                          Exit for
                      End If
                         strParent =  strParent&iParent&"("&""""&eval(iParentProp)&""""&")."
                         msgbox(strParent)
                Next
      ParentObject = strParent
      msgbox(ParentObject)
  Else
       oStatement =  ParentObject&"."& strObjClass &"("&""""&eval(strObjProperties)&""""&")."& strOperation
       msgbox(oStatement)
       If strValue<>"" Then
             oStatement = oStatement& """"&strValue&""""
             msgbox(oStatement)
             else
             oStatement = oStatement
             msgbox(oStatement)
       End If
           msgbox(oStatement)
        Execute(oStatement)
End If
Next

Can any one help me on this I am facing these error:
Cannot find the "[ WebButton ]" object's parent "[ Page ]" (class Page).
Cannot find the "[ WebEdit ]" object's parent "[ Page ]" (class Page).