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把微信开发者工具卸载，重现去官网下载最新版本的开发者工具就没事了
开发者工具报错,项目无法运行,回退版本也报错;怎么处理?报错信息 --- PLACEHOLDER PACKAGE --- This @babel/plugin-proposal-private-property-in-object version is not meant to be imported. Something is importing @babel/plugin-proposal-private-property-in-object without declaring it in its dependencies (or devDependencies) in the package.json file. Add "@babel/plugin-proposal-private-property-in-object" to your devDependencies to work around this error. This will make this message go away. 2025-7-6 21:37:47更新: 把JS编译成ES5的选项去掉就可以了 但是去掉了这个勾选又无法生成预览
07-21