Tag Archives: TypeError: Property value expected type of string but got null

[Solved] TypeError: Property value expected type of string but got null

Problem Description: the unapp compilation applet reports an error, but there is no problem on the H5 and app side

15:57:47.609 TypeError: Property value expected type of string but got null
15:57:47.609     at Object.validate (D:\Program Files\HBuilderX\plugins\uniapp-cli\node_modules\@babel\types\lib\definitions\utils.js:160:13)
15:57:47.615     at validateField (D:\Program Files\HBuilderX\plugins\uniapp-cli\node_modules\@babel\types\lib\validators\validate.js:24:9)
15:57:47.621     at validate (D:\Program Files\HBuilderX\plugins\uniapp-cli\node_modules\@babel\types\lib\validators\validate.js:17:3)
15:57:47.621     at builder (D:\Program Files\HBuilderX\plugins\uniapp-cli\node_modules\@babel\types\lib\builders\builder.js:38:27)
15:57:47.629     at Object.StringLiteral (D:\Program Files\HBuilderX\plugins\uniapp-cli\node_modules\@babel\types\lib\builders\generated\index.js:350:31)
15:57:47.629     at parseEventByCallExpression (D:\Program Files\HBuilderX\plugins\uniapp-cli\node_modules\@dcloudio\uni-template-compiler\lib\script\traverse\data\event.js:177:30)
15:57:47.642     at D:\Program Files\HBuilderX\plugins\uniapp-cli\node_modules\@dcloudio\uni-template-compiler\lib\script\traverse\data\event.js:318:15
15:57:47.643     at Array.forEach (<anonymous>)
15:57:47.651     at D:\Program Files\HBuilderX\plugins\uniapp-cli\node_modules\@dcloudio\uni-template-compiler\lib\script\traverse\data\event.js:317:28
15:57:47.651     at Array.forEach (<anonymous>)
15:57:47.662     at parseEvent (D:\Program Files\HBuilderX\plugins\uniapp-cli\node_modules\@dcloudio\uni-template-compiler\lib\script\traverse\data\event.js:258:15)
15:57:47.662     at _processEvent (D:\Program Files\HBuilderX\plugins\uniapp-cli\node_modules\@dcloudio\uni-template-compiler\lib\script\traverse\data\event.js:436:9)
15:57:47.670     at processEvent (D:\Program Files\HBuilderX\plugins\uniapp-cli\node_modules\@dcloudio\uni-template-compiler\lib\script\traverse\data\event.js:497:5)
15:57:47.671     at D:\Program Files\HBuilderX\plugins\uniapp-cli\node_modules\@dcloudio\uni-template-compiler\lib\script\traverse\data\index.js:34:5
15:57:47.678     at Array.forEach (<anonymous>)
15:57:47.686     at traverseData (D:\Program Files\HBuilderX\plugins\uniapp-cli\node_modules\@dcloudio\uni-template-compiler\lib\script\traverse\data\index.js:33:13)
15:57:48.873 Module build failed (from ./node_modules/@dcloudio/vue-cli-plugin-uni/packages/vue-loader/lib/loaders/templateLoader.js):

The reason is that I used uview’s anti shake in the code and passed the parameters

<view @tap="$u.throttle(goGoodsDetai(item.id, item.supplierId),500)">

If parameters are not transmitted, it is normal

<view @tap="$u.throttle(goGoodsDetai,500)">