2020.3 Import error: 'JsonSerializerSettings' does not contain a constructor that takes 1 arguments

[MartijnPW]

Hi,

When I import SocketIOUnity into a fresh project in Unity 2020.3.23f1 I get this error

Library\PackageCache\com.itisnajim.socketiounity@00e176c\Runtime\SocketIOClient.Newtonsoft.Json\NewtonsoftJsonSerializer.cs(23,32): error CS1729: 'JsonSerializerSettings' does not contain a constructor that takes 1 arguments

Any thought what could be the issue here?

Tried it also in 2021.3, there it worked fine.

I know 2020.3 is an ancient Unity version, but our company project is still using it, so I would love to get this working!

Thanks!

[MartijnPW]

Any help on this would still be much appreciated :)
Thanks again!

[Vishnu-Nuwa]

im using 6000.*, still facing this same issue ?

[Vishnu-Nuwa]

Any help on this would still be much appreciated :) Thanks again!

You dont need the converter overloaded, if you are not heavvily changing the settings on NewtonsoftJson. or else u can copy it yourself. this works for me:

private JsonSerializerSettings NewSettings(ByteArrayConverter converter)
{
var settings = new JsonSerializerSettings();
settings.Converters.Add(converter);
return settings;
}