Multiplayer (0.13.4_rc) crashes on launch

Equalizer

From the game menu screen pressing the multiplayer button causes the game to crash with the following error.

Halfling.Serialization.SerializeException: Serialization to destination "POSITION: 0" failed. ---> System.ArgumentNullException: Value cannot be null.
Parameter name: value
    at System.IO.BinaryWriter.Write(String value)
    at Halfling.Serialization.Base.BaseSerializer`10.SpecificSerializerSerializationMethod.TrySerialize(TSerializer s, TDest dest, Object obj, Type type, WriteFlags flags, ProgressTracker progressTracker) in` C:\Users\Walt\Documents\Code\Cosmoteer\Halfling\HalflingCore\Serialization\Base\BaseSerializer.cs:line 1686
    at Halfling.Serialization.Base.BaseSerializer`10.Write(TDest dest, Object obj, Type type, WriteFlags flags, ProgressTracker pt, Single weight, String sliceName, TIBaseSerializer overrideSpecificSerializer, IGenericSerializer overrideGenericSerializer) in C:\Users\Walt\Documents\Code\Cosmoteer\Halfling\HalflingCore\Serialization\Base\BaseSerializer.cs:line 418

IVIemories

You need to have set your in game playername otherwise it'll crash.

Either downgrade to a previous version and set it there, or do it manually by:

Going to settings.txt in Documents/my games/cosmoteer - you probably want to open it with something like sublime text or notepad++ to make sure the format is correct

Find DefaultMPJoinHostname

Replace what is directly under that line with PlayerName = [your name here]

Save the file and the game should work properly