给出“ StaleElementReferenceException：消息：stale元素引用：元素未附加到页面文档”错误

Question

当我使用机器人框架运行代码时，selenium webdriver会给出一个

  

StaleElementReferenceException：消息：陈旧元素引用：   元素未附加到页面文档错误

我在for循环中遇到错误 我在出现此错误之前添加了一些延迟

@{PopupDescriptionList}=    Create List     aaa.bbb,ccc,ddd

${L1}       create list     @{PopupDescriptionList}

@{DiscriptionElem} =     Get WebElements       ${Select_PopUp_Description}

${List1}=    Create List

sleep            2s

:For    ${Discelements}          IN              @{DiscriptionElem}

\   log to console        hello

\   sleep           5s                                   

\   ${text1} =          get text      ${Discelements}

\   ${NewList}=         create list     ${text1}

\   ${List1}=           Combine Lists   ${List1}      ${NewList}

log to console           ${List1}

should be equal          ${L1}         ${List1}