How to get Post of my facebook wall in android?

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Mobile

Android

Facebook-API

I want to get all the posts data of my facebook account wall in android. I have got session but when i execute the below querry then gives the error.

new Request(fbSession,"/me?fields=posts",null, HttpMethod.GET, new Request.Callback()
{
public void onCompleted(Response response) {
ShowToast(response.toString());
}
}
).executeAsync();

**Error:** Active Access Token must be used to querry information about the current user.

Although i have an active session variable, which can retrieve my Basic information