MarshalDirectiveException: Cannot marshal type 'System.Collections.Generic.IEnumerable`1'

Question

Hi, I am trying to use the example login from facebook, the init seems to be ok but when i call:

public void FacebookLogin() { FB.LogInWithReadPermissions(new List() { "public_profile", "email", "user_friends" }, AuthCallback); }

from a button click (from a webgl build in a browser) i am getting a: MarshalDirectiveException: Cannot marshal type 'System.Collections.Generic.IEnumerable`1'.

It comes from the first parameter and I am at a loss as to how to resolve this.

Any help would be appreciated.

Answer 1

Answer by rankornfeld · May 29, 2018 at 03:14 PM

I am getting something similar with the latest Unity Facebook SDK 7.12.1 when trying to call:

 FB.AppRequest()

to send requests to friends. Any findings on that?

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Answer 2

Answer by makanan · May 30, 2018 at 12:09 PM

Nope, sorry, I had kinda given up on this ...

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Answer 3

Answer by RoCo · May 30, 2018 at 04:31 PM

Any progress on this?

We have exactly the same problem using 7.12.1 I reported the bug to Facebook, https://developers.facebook.com/bugs/1821608858133184/

Hope this help to find a solution

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Answer 4

Answer by raiapplication · Jun 08, 2019 at 10:58 PM

Any Updates?? I am stuck in the same problem! ;(

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MarshalDirectiveException: Cannot marshal type 'System.Collections.Generic.IEnumerable`1'

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