我在一些Excel 2010版本中得到'编译错误：无法找到项目或库'。很难测试这个

My customer is getting a Compile Error; Can't find project or Library on his version of Excel 2010, however i am not getting this on my version of 2010. How can i adjust this code so it will not appear. When the error appears in the following code the text "cell" in "For each cell in selection" is highlighted:My customer is getting a Compile Error; Can't f