问题出在我的代码中.我正在使用重定向URI，并且两个文件都需要权限范围. 但是我仅在一个文件中添加了权限范围. 因此，无论您在哪里请求客户端，都可以在所有文件中添加权限.

Problem was in my code. I was using redirect URI and the permission scope was needed in both files. But i added permission scope in only one file. So add permissions in all files wherever you are requesting the client.