我打包为微信小程序后，真机调试一直报这个错 我该如何处理？

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我打包为微信小程序后，真机调试一直报这个错 我该如何处理？ Cannot read property 'left' of null TypeError: Cannot read property 'left' of null at eval (weapp:///tuniao-ui/components/tn-tabbar/tn-tabbar.js:183:27) at Array.map () at Object.eval (weapp:///tuniao-ui/components/tn-tabbar/tn-tabbar.js:181:41) at Function.eval (eval at Ce.t.call.document (http://127.0.0.1:33006/remote-debug/runtime.js?devtools_ignore=true:1:18762), :2:1776758) at <SelectorQuery callback function> at eval (eval at Ce.t.call.document (http://127.0.0.1:33006/remote-debug/runtime.js?devtools_ignore=true:1:18762), :2:166058) at eval (eval at Ce.t.call.document (http://127.0.0.1:33006/remote-debug/runtime.js?devtools_ignore=true:1:18762), :2:1776884) at Array.forEach () at eval (eval at Ce.t.call.document (http://127.0.0.1:33006/remote-debug/runtime.js?devtools_ignore=true:1:18762), :2:1776872) at eval (eval at Ce.t.call.document (http://127.0.0.1:33006/remote-debug/runtime.js?devtools_ignore=true:1:18762), :2:1773376)