FindFirst() error: unable to find method in class. method name first

Windows Phone/.NET
1

This works for me:
var result = await Backendless.Data.Of<Person>().FindAsync();

But if I try either of these:
Person result = await Backendless.Data.Of<Person>().FindFirstAsync();
or
Person result = Backendless.Data.Of<Person>().FindFirst();

…then I get this error at runtime:

BackendlessException: unable to find method in class. method name first

I am using the Backendless NuGet package version 6.0.0 running in Unity 2019.2.17. I am unable to complete the mission “CRUD Rookie” due to this error.

2

internal ticket to investigate the issue is created BKNDLSS-22472

3

Hello @Invited2.
The problem has been fixed, in the next update of the SDK changes will be made.
Regards, Nikita.

4

Exact same issue happened to me with Xamarin.Forms and Backendless .Net SDK.
Both tested, Android and iOS are not working.

BackendlessException: unable to find method in class. method name first

Also unable to complete the mission “CRUD Rookie”

5

Hi @Janis,

we’re looking into it.

Regards,
Stanislaw

6

Hello @Janis,

Please use version 6.0.1 from Nuget, the problem is fixed there.

Regards,
Mark

1 Like