新建一个默认UniAPP项目，运行》运行到手机或者模拟器，直接编译报错

重现步骤
[步骤] 新建一个默认UniAPP项目 运行》运行到手机或者模拟器
[结果] 运行到H5，小程序，没有问题，但是运行到手机就会报错
[期望] 能直接运行在手机或者模拟器
[如果语言难以表述清晰，拍一个视频或截图，有图有真相]

IDE运行环境说明
[HBuilder 或 HBuilderX] HBuilderX
[IDE版本号] 2.1.2.20190717-alpha
[windows版本号]
[mac版本号] 10.13.6

uni-app运行环境说明
[运行端是h5或app或某个小程序] APP
[运行端版本号] 编译器版本：2.1.2

App运行环境说明
[Android版本号] Android 9.0
[iOS版本号]
[手机型号]
[模拟器型号]

附件
[IDE问题请提供HBuilderX运行日志。菜单帮助-查看运行日志，点右键打开文件所在目录，将log文件压缩成zip包上传]
[App问题请提供可重现问题的代码片段，你补充的细一点，问题就解决的快一点]
[App安装包或H5地址]
[可重现代码片段]

报错日志

19:25:20.400 项目 'StoreServer' 开始编译...
19:25:21.177 编译器版本：2.1.2，当前项目编译模式：自定义组件模式。编译模式差异见：https://ask.dcloud.net.cn/article/35843
19:25:24.241 SyntaxError: Unexpected token n in JSON at position 27
19:25:24.242 at JSON.parse (<anonymous>)
19:25:24.252 at parseConfig (/Applications/HBuilderX-Alpha.app/Contents/HBuilderX/plugins/weapp-tools/lib/index.js:1:4680)
19:25:24.267 at index (/Applications/HBuilderX-Alpha.app/Contents/HBuilderX/plugins/weapp-tools/lib/index.js:1:14614)
19:25:24.288 at Promise (/Applications/HBuilderX-Alpha.app/Contents/HBuilderX/plugins/uniapp-cli/node_modules/@dcloudio/vue-cli-plugin-hbuilderx/packages/webpack-app-plus-plugin/index.js:33:21)
19:25:24.305 at new Promise (<anonymous>)
19:25:24.318 at compiler.hooks.done.tapPromise.compilation (/Applications/HBuilderX-Alpha.app/Contents/HBuilderX/plugins/uniapp-cli/node_modules/@dcloudio/vue-cli-plugin-hbuilderx/packages/webpack-app-plus-plugin/index.js:12:20)
19:25:24.318 at AsyncSeriesHook.eval [as callAsync] (eval at create (/Applications/HBuilderX-Alpha.app/Contents/HBuilderX/plugins/uniapp-cli/node_modules/tapable/lib/HookCodeFactory.js:32:10), <anonymous>:17:17)
19:25:24.336 at AsyncSeriesHook.lazyCompileHook (/Applications/HBuilderX-Alpha.app/Contents/HBuilderX/plugins/uniapp-cli/node_modules/tapable/lib/Hook.js:154:20)
19:25:24.353 at Watching._done (/Applications/HBuilderX-Alpha.app/Contents/HBuilderX/plugins/uniapp-cli/node_modules/webpack/lib/Watching.js:97:28)
19:25:24.354 at compiler.emitRecords.err (/Applications/HBuilderX-Alpha.app/Contents/HBuilderX/plugins/uniapp-cli/node_modules/webpack/lib/Watching.js:72:19)
19:25:24.377 at Compiler.emitRecords (/Applications/HBuilderX-Alpha.app/Contents/HBuilderX/plugins/uniapp-cli/node_modules/webpack/lib/Compiler.js:375:39)
19:25:24.378 at compiler.emitAssets.err (/Applications/HBuilderX-Alpha.app/Contents/HBuilderX/plugins/uniapp-cli/node_modules/webpack/lib/Watching.js:53:20)
19:25:24.397 at hooks.afterEmit.callAsync.err (/Applications/HBuilderX-Alpha.app/Contents/HBuilderX/plugins/uniapp-cli/node_modules/webpack/lib/Compiler.js:361:14)
19:25:24.398 at _err0 (eval at create (/Applications/HBuilderX-Alpha.app/Contents/HBuilderX/plugins/uniapp-cli/node_modules/tapable/lib/HookCodeFactory.js:32:10), <anonymous>:20:1)
19:25:24.419 at callback (/Applications/HBuilderX-Alpha.app/Contents/HBuilderX/plugins/uniapp-cli/node_modules/copy-webpack-plugin/dist/index.js:126:17)
19:25:24.420 at afterEmit (/Applications/HBuilderX-Alpha.app/Contents/HBuilderX/plugins/uniapp-cli/node_modules/copy-webpack-plugin/dist/index.js:220:13)
19:25:24.439 [ERROR] 读取app.json失败...
19:25:24.464 ENOENT: no such file or directory, copyfile '/Users/tanranran/Code/HomeworkStore/StoreServer/StoreServer/unpackage/dist/dev/.tmp/app-plus/manifest.json' -> '/Users/tanranran/Code/HomeworkStore/StoreServer/StoreServer/unpackage/dist/dev/app-plus/manifest.json'