Android internal client error null

I usually get into the same pitfall: Network on Main Thread error.
The problem is: “internal client error - message: null” tells exactly nothing.
I suggest to add some more meaningful errorCodes than null.


This usually happens when you make a sync call on the UI thread.


I am getting this error on practically every method. for e.g in this one
Backendless.UserService.login(email, password, new AsyncCallback<BackendlessUser>() {
public void handleResponse(BackendlessUser backendlessUser) {
//TODO : handle response

public void handleFault(BackendlessFault backendlessFault) {
    if (backendlessFault != null) handleLoginFault(backendlessFault);


I got it working, issue was during initialisation i passed wrong version.

it should be v1