Onboarding users in smp 3.0 failed

Hi

I've been following the Claudia Pacheco's How To... On-board users with SMP 3.0 OData API (Android) guide. I'm sure I'm doing everything just as the guide says, the error I'm getting is:

Whe I debug the project I realize that are 2 lines (user and pass) that are never getting filled. The 2 lines are:

try{     lgCtx.setBackendUser(usernameEdit.getText().toString());     lgCtx.setBackendPassword(passwordEdit.getText().toString());
} catch (LogonCoreException e){     //Notifies the execution finished     wasSuccessful = false;     Log.e(TAG, "error entering user credentials", e);
}

Despite the app enters to the "try", they never get filled. I don't know if that may be the source of the error. The ping from the Management Cockpit to the back-end url is successful.

Hope someone can help me, I've been dealing with this error for one day.

Regards.

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Ana María Velásquez