Question: In my test.conf file I have the following configuration

```
akka {
  actor {
    provider = "akka.cluster.ClusterActorRefProvider"

    serializers {
       java = "akka.serialization.JavaSerializer"
    }

    serialization-bindings {
        "java.io.Serializable" = "kyro"
    }
  }
}

```

I am trying to put this configuation in test.properties file as

```
akka.actor.provider=akka.cluster.ClusterActorRefProvider
akka.actor.serializers.java=akka.serialization.JavaSerializer
akka.actor.serialization-bindings."java.io.Serializable" = kryo

```

When I create and AKKA ActorSystem using test.conf file it is working fine but when I am creating an ActorSytem with the test.propeties file as

```
System.setProperty("config.file", "test.properties");
Config config = ConfigFactory.load();
ActorSystem testactor = ActorSystem.create("testactor", config);

```

Here I am getting java ClassNotFoundExcpetion : "java

I seens the way I put the akka.actor.serialization-bindings."java.io.Serializable" in test.properties file is not correct.Please suggest the correct way to put this in .properties file.

Answer: 
This bug is fixed now. All you have to do is set `isEnabled` to **false** and save. Then you can delete the role and save again. A Work-around is not necessary.
It seems a bug in new portal . The save operation doesn't save `isEnabled` to false on server side . Any feedback , you could post to [here](https://feedback.azure.com/forums/169401-azure-active-directory) .

Currently , you could use Azure AD classic portal to modify the app roles in manifest(download the manifest and then upload manifest that changed) . Delete app roles in classic portal works fine in my environment . Please let me know if it helps.