【已解决】HBuilderX uni-app云打包失败，提示找不到app.json，读取app.json失败

uni-app用HBuilderX原生App-云打包，android 和 ios均打包失败

控制台输出信息：
项目 ... 开始编译...
Error: ENOENT: no such file or directory, open '...\unpackage\dist\build.tmp\app-plus\app.json'
at Object.fs.openSync (fs.js:646:18)
at Object.fs.readFileSync (fs.js:551:33)
at parseConfig (D:\RunSoft\HBuilderX\plugins\weapp-tools\lib\index.js:1:4187)
at index (D:\RunSoft\HBuilderX\plugins\weapp-tools\lib\index.js:1:12473)
at Promise (D:\RunSoft\HBuilderX\plugins\uniapp-cli\node_modules\@dcloudio\vue-cli-plugin-hbuilderx\packages\webpack-app-plus-plugin\index.js:17:11)
at new Promise (<anonymous>)
at compiler.hooks.done.tapPromise.compilation (D:\RunSoft\HBuilderX\plugins\uniapp-cli\node_modules\@dcloudio\vue-cli-plugin-hbuilderx\packages\webpack-app-plus-plugin\index.js:12:14)
at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\RunSoft\HBuilderX\plugins\uniapp-cli\node_modules\tapable\lib\HookCodeFactory.js:32:10), <anonymous>:17:17)
at AsyncSeriesHook.lazyCompileHook (D:\RunSoft\HBuilderX\plugins\uniapp-cli\node_modules\tapable\lib\Hook.js:154:20)
at onCompiled (D:\RunSoft\HBuilderX\plugins\uniapp-cli\node_modules\webpack\lib\Compiler.js:228:21)
at hooks.afterCompile.callAsync.err (D:\RunSoft\HBuilderX\plugins\uniapp-cli\node_modules\webpack\lib\Compiler.js:556:14)
at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\RunSoft\HBuilderX\plugins\uniapp-cli\node_modules\tapable\lib\HookCodeFactory.js:32:10), <anonymous>:6:1)
at AsyncSeriesHook.lazyCompileHook (D:\RunSoft\HBuilderX\plugins\uniapp-cli\node_modules\tapable\lib\Hook.js:154:20)
at compilation.seal.err (D:\RunSoft\HBuilderX\plugins\uniapp-cli\node_modules\webpack\lib\Compiler.js:553:30)
at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\RunSoft\HBuilderX\plugins\uniapp-cli\node_modules\tapable\lib\HookCodeFactory.js:32:10), <anonymous>:6:1)
at AsyncSeriesHook.lazyCompileHook (D:\RunSoft\HBuilderX\plugins\uniapp-cli\node_modules\tapable\lib\Hook.js:154:20)
errno: -4058,
code: 'ENOENT',
syscall: 'open',
path: '...\unpackage\dist\build\.tmp\app-plus\app.json' }
[ERROR] 读取app.json失败...
ENOENT: no such file or directory, copyfile '...\unpackage\dist\build.tmp\app-plus\manifest.json' -> '...\unpackage\dist\build\app-plus\manifest.json'

求解！！！