请问这是dcloud版本问题么还是该怎么处理

分类：uni-app

DCloud

15:19:10.310 /Users/qinze/Downloads/ColorTimetable-main/node_modules/@dcloudio/uni-cli-shared/dist/json/app/manifest/nvue.js:34
15:19:10.311 if (manifestJson['app-plus']?.nvue?.['flex-direction']) {
15:19:10.320 ^
15:19:10.321 SyntaxError: Unexpected token '.'
15:19:10.327 at wrapSafe (internal/modules/cjs/loader.js:915:16)
15:19:10.327 at Module._compile (internal/modules/cjs/loader.js:963:27)
15:19:10.333 at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
15:19:10.341 at Module.load (internal/modules/cjs/loader.js:863:32)
15:19:10.341 at Function.Module._load (internal/modules/cjs/loader.js:708:14)
15:19:10.353 at Module.require (internal/modules/cjs/loader.js:887:19)
15:19:10.353 at require (internal/modules/cjs/helpers.js:74:18)