The type 'JsonConvert' exists in both 'Newtonsoft.Json

d0raem0n231

I use Youtube API made from LightShaft
There is another 'JsonConver.dll'

Assets\Photon\PhotonUnityNetworking\Code\Editor\AccountService.cs(203,49): error CS0433: The type 'JsonConvert' exists in both 'Newtonsoft.Json, Version=8.0.0.0, Culture=neutral, PublicKeyToken=null' and 'Newtonsoft.Json, Version=4.5.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed'

How can I get out of this issue?
I am waiting for your advice.

d0raem0n231

Ok.. I deleted 'Newtonsoft.Json.dll' from photon folder.
Console cleared, but I wonder that this file isn't needed.

JohnTube

Hi @d0raem0n231,

Thank you for choosing Photon!

In "Assets\Photon\PhotonUnityNetworking\Code\Editor\AccountService.cs", replace line 203:

from

Dictionary<string, string> values = JsonConvert.DeserializeObject<Dictionary<string, string>>(result);

to

Dictionary<string, string> values = Newtonsoft.Json.JsonConvert.DeserializeObject<Dictionary<string, string>>(result);

Optionally remove:

using Newtonsoft.Json;

d0raem0n231

Dictionary values = JsonConvert.DeserializeObject>(result);

Thank you..
But I can not solve that problem.
Red underline don't disappear..

Is there method to select version of Newtonsoft.Json.JsonConvert?

JohnTube said:

Hi @d0raem0n231,

Thank you for choosing Photon!

In "Assets\Photon\PhotonUnityNetworking\Code\Editor\AccountService.cs", replace line 203:

from

Dictionary<string, string> values = JsonConvert.DeserializeObject<Dictionary<string, string>>(result);

to

Dictionary<string, string> values = Newtonsoft.Json.JsonConvert.DeserializeObject<Dictionary<string, string>>(result);

Optionally remove:

using Newtonsoft.Json;

JohnTube

Hi @d0raem0n231,

I see now.
it was a misunderstanding from my part, I overlooked some details.

So the issue is that you ended up with two versions of Newtonsoft DLLs and no that a class with the same name "JsonConvert" exists in two different namespaces.

You can remove one of the two DLLs I guess the oldest.

In the future, we will get rid of Newtonsoft from PUN to avoid this.

JohnTube

FYI:
Since PUN2.11.
We have removed Newtonsoft DLL from PUN2 as it's no longer dependent from it since we replaced it by Unity's built-in JsonUtility.