解决了吗？我也遇到了
大佬们请问一下，就是我ide这些 预览也正常，但是一进入真机调试就报这个错，找了半天也没有什么办法？WAServiceMainContext.js:1 MiniProgramError Cannot find method "observeDuration" for observer of property "duration". Error: Cannot find method "observeDuration" for observer of property "duration". at kt.prepare (WAServiceMainContext.js:1:553900) at kt.prepare (WAServiceMainContext.js:1:548986) at kt.prepare (WAServiceMainContext.js:1:549419) at bt.prepare (WAServiceMainContext.js:1:531822) at mt (WAServiceMainContext.js:1:529620) at Ke.createComponent (WAServiceMainContext.js:1:501648) at et.createCommonElement (WAServiceMainContext.js:1:521680) at (WAServiceMainContext.js:1:516418) at et.handleChildrenCreation (WAServiceMainContext.js:1:516093) at et.handleChildrenCreationAndInsert (WAServiceMainContext.js:1:518145)
03-05
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