Suppressing toast from package in Android

I'm developing an Android app and I'm trying to show some information with a Toast. I used Toasts in other projects and everything works, but in this app, when the Toast should appear, it doesn't do it and Logcat shows the next message: Suppressing toast from package com.xxxxxxx by user request.

I'm creating the toast with the next code:

Context context = xxxxxxx.this;
CharSequence text = "Hello toast!";
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, text, duration);
toast.show();

I tried to set the context with getApplicationContext() and getBaseContext() too, but doesn't work.

Anyone knows how to solve this problem?

Thank you very much.