word组件问题

上图



上代码
 /// <summary>
  /// 替换值
  /// </summary>
  /// <param name="oWord"></param>
  /// <param name="doc"></param>
  /// <param name="oOpt"></param>
  /// <param name="key"></param>
  /// <param name="value"></param>
  private void ReplaceContent(ref Word.ApplicationClass oWord, ref Word.Document doc, ref object oOpt, string key, string value)
  {
  doc.Content.Select();
  Word.Find fnd = oWord.Selection.Find;
  fnd.ClearFormatting();
  fnd.Text = key;

  if (fnd.Execute(ref oOpt, ref oOpt, ref oOpt, ref oOpt, ref oOpt, ref oOpt, ref oOpt, ref oOpt, ref oOpt, ref oOpt, ref oOpt, ref oOpt, ref oOpt, ref oOpt, ref oOpt))
  {
  Word.Range oRange = oWord.Selection.Range;
  this.ReplaceValue(key, value, oRange);
  }
  }


生成word文件，在替换的时报错，

代码一式两份，同事一份，我一份，同事机器跑着么事，我这边报错


小弟新人，求高人指点

自己顶下