Android studio ContextCompat.checkSelfPermission中Manifest.permission unresolved reference错误解决方式

代码中自动检测权限的代码报错：Manifes中的permission，报unresolved reference：permisson错误

正确代码如下：

if(ContextCompat.checkSelfPermission(this,android.Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED){
    ActivityCompat.requestPermissions(this,arrayOf(android.Manifest.permisson.READ_EXTERNAL_STORAGE),0)
}