thirdScriptError

e.buttonClicked is not a function; [Component] Event Handler Error @ pages/index/index#bound desdl

TypeError: e.buttonClicked is not a function

    at Se.desdl (http://127.0.0.1:30471/appservice/pages/index/index.js:88:7)

    at Object.r.safeCallback (http://127.0.0.1:30471/appservice/__dev__/WAService.js:2:1460477)

    at http://127.0.0.1:30471/appservice/__dev__/WAService.js:2:1579287

    at c (http://127.0.0.1:30471/appservice/__dev__/WAService.js:2:1587224)

    at http://127.0.0.1:30471/appservice/__dev__/WAService.js:2:1579212

    at r (http://127.0.0.1:30471/appservice/__dev__/WAService.js:2:1531739)

    at http://127.0.0.1:30471/appservice/__dev__/WAService.js:2:1531861

    at http://127.0.0.1:30471/appservice/__dev__/WAService.js:2:724745

    at o (http://127.0.0.1:30471/appservice/__dev__/asdebug.js:1:28054)

    at e.exports. (http://127.0.0.1:30471/appservice/__dev__/asdebug.js:1:28423)

求大佬解答这个错误

 "desdl" class="desbtn" data-joker-id="{{item.url}}" data-joker-ts="{{item.kbm}}" disabled="{{buttonClicked}}">获取

<button bindtap="desdl" class="desbtn" data-joker-id="{{item.url}}" data-joker-ts="{{item.kbm}}" disabled="{{buttonClicked}}">button>

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