当我运行 ng build 命令时，我收到以下错误，
发生未处理的异常：无法加载工作区配置文件：C:...\angular\angular.json 无效的 JSON 字符：“？” 在 0:0。有关更多详细信息，请参阅“C:\Users...\AppData\Local\Temp\ng-I8pYWt\angular-errors.log”。
我试过 npm cache clean --force 然后 npm install 或 yarn
角度errors.log
[error] Error: Workspace config file cannot be loaded: C:\...\angular\angular.json
Invalid JSON character: "?" at 0:0.
at Object.getWorkspace (C:\...\angular\node_modules\@angular\cli\utilities\config.js:59:15)
at BuildCommand.validateScope (C:\...\angular\node_modules\@angular\cli\models\command.js:97:60)
at BuildCommand.validateAndRun (C:\...\angular\node_modules\@angular\cli\models\command.js:122:24)
at Object.runCommand (C:\...\angular\node_modules\@angular\cli\models\command-runner.js:186:38)
at process.runNextTicks [as _tickCallback] (internal/process/task_queues.js:52:5)
at Function.Module.runMain (internal/modules/cjs/loader.js:880:11)
at internal/main/run_main_module.js:21:11
版本
Package Version
-----------------------------------------------------------
@angular-devkit/architect 0.800.6
@angular-devkit/build-angular 0.800.6
@angular-devkit/build-optimizer 0.800.6
@angular-devkit/build-webpack 0.800.6
@angular-devkit/core 8.3.9
@angular-devkit/schematics 8.3.9
@angular/cdk 8.2.3
@angular/cli 8.3.9
@ngtools/webpack 8.0.6 …