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Uncaught (in promise) TypeError: Cannot read property 'insertBefore' of null
at Object.top (mootools-1.6.0_all.js:3725)
at HTMLDivElement.inject (mootools-1.6.0_all.js:4059)
at Object.load (<anonymous>:1:4363)
at Object.i.extend.$owner (mootools-1.6.0_all.js:1399)
at Object.initialize (<anonymous>:1:4290)
at Object.<anonymous> (mootools-1.6.0_all.js:7093)
at Object.i.extend.$owner (mootools-1.6.0_all.js:1399)
at new <anonymous> (mootools-1.6.0_all.js:1357)
at Object.addTooltip (<anonymous>:1:3652)
at Object.i.extend.$owner (mootools-1.6.0_all.js:1399)
但流程已经流转下去了,请问这是什么原因导致的?
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