按照本教程操作：Build a Basic CRUD App with Angular 7.0 and Spring Boot 2.1
克隆该存储库（角度大于6）
<ion-item class="item" text-center no-lines *ngFor="let item of token let i=index">
Time:{{item.client[0].sessionDetails.sessions[{{item.sessionNumber}}].startTime}}
</ion-item>
收到此错误：
git clone https://github.com/oktadeveloper/okta-spring-boot-2-angular-7-example.git
cd okta-spring-boot-2-angular-7-example/client
npm install
ng serve
我的棱角版本：
ENOENT: no such file or directory, open 'C:\C\angular\okta\okta-spring-boot-2-angular-7-example\client\node_modules\@angular\cli\commands\version.json'
P / s：即使在项目文件夹中键入ng --version
Your global Angular CLI version (6.2.1) is greater than your local
version (6.2.0-beta.3). The local Angular CLI version is used.
To disable this warning use "ng config -g cli.warnings.versionMismatch false".
ENOENT: no such file or directory, open 'C:\C\angular\okta\okta-spring-boot-2-angular-7-example\client\node_modules\@angular\cli\commands\version.json'
Error: ENOENT: no such file or directory, open 'C:\C\angular\okta\okta-spring-boot-2-angular-7-example\client\node_modules\@angular\cli\commands\version.json'
at Object.fs.openSync (fs.js:663:18)
at Object.fs.readFileSync (fs.js:568:33)
at findCommand (C:\angular\okta\okta-spring-boot-2-angular-7-example\client\node_modules\@angular\cli\models\command-runner.js:302:31)
at Object.<anonymous> (C:\angular\okta\okta-spring-boot-2-angular-7-example\client\node_modules\@angular\cli\models\command-runner.js:80:31)
at Generator.next (<anonymous>)
at C:\angular\okta\okta-spring-boot-2-angular-7-example\client\node_modules\@angular\cli\models\command-runner.js:14:71
at new Promise (<anonymous>)
at __awaiter (C:\angular\okta\okta-spring-boot-2-angular-7-example\client\node_modules\@angular\cli\models\command-runner.js:10:12)
at Object.runCommand (C:\angular\okta\okta-spring-boot-2-angular-7-example\client\node_modules\@angular\cli\models\command-runner.js:51:12)
at C:\angular\okta\okta-spring-boot-2-angular-7-example\client\node_modules\@angular\cli\lib\cli\index.js:38:58
，我仍然会收到错误消息
有什么想法吗？