System.NotSupportedException trying to deserialize Vector3 from JSON in Unity3d/Oculus

Question

I am currently trying to deserialize a json string of type Vector3[][] for Unity (for a virtual reality project) and it is throwing the exception above. My json string is as follows:

[[{"x":-2.343096,"y":1.72245443,"z":0.0,"normalized":{"x":-0.805718362,"y":0.592298865,"z":0.0,"magnitude":1.0,"sqrMagnitude":1.0},"magnitude":2.9080832,"sqrMagnitude":8.456948},{"x":-2.343096,"y":1.72245443,"z":0.0,"normalized":{"x":-0.805718362,"y":0.592298865,"z":0.0,"magnitude":1.0,"sqrMagnitude":1.0},"magnitude":2.9080832,"sqrMagnitude":8.456948},{"x":-2.30125523,"y":1.61087871,"z":0.0,"normalized":{"x":-0.819231868,"y":0.573462367,"z":0.0,"normalized":{"x":-0.8192319,"y":0.5734624,"z":0.0,"magnitude":1.0,"sqrMagnitude":1.00000012},"magnitude":0.99999994,"sqrMagnitude":0.99999994},"magnitude":2.80904,"sqrMagnitude":7.89070559},{"x":-2.24546719,"y":1.4853555,"z":0.0,"normalized":{"x":-0.834037364,"y":0.5517079,"z":0.0,"magnitude":1.0,"sqrMagnitude":0.99999994},"magnitude":2.692286,"sqrMagnitude":7.248404},{"x":-2.21757317,"y":1.38772666,"z":0.0,"normalized":{"x":-0.8476986,"y":0.5304781,"z":0.0,"magnitude":1.0,"sqrMagnitude":1.0},"magnitude":2.61599231,"sqrMagnitude":6.843416},{"x":-2.17573214,"y":1.27615035,"z":0.0,"normalized":{"x":-0.8625732,"y":0.5059323,"z":0.0,"magnitude":1.0,"sqrMagnitude":1.0},"magnitude":2.522374,"sqrMagnitude":6.36237},{"x":-2.147838,"y":1.17852151,"z":0.0,"normalized":{"x":-0.8766962,"y":0.481044352,"z":0.0,"magnitude":1.0,"sqrMagnitude":0.99999994},"magnitude":2.4499228,"sqrMagnitude":6.00212145},{"x":-2.09205,"y":0.997210741,"z":0.0,"normalized":{"x":-0.90269357,"y":0.430284023,"z":0.0,"magnitude":1.0,"sqrMagnitude":1.0},"magnitude":2.317564,"sqrMagnitude":5.371103},{"x":-2.05020928,"y":0.829846859,"z":0.0,"normalized":{"x":-0.926946759,"y":0.375192851,"z":0.0,"magnitude":1.0,"sqrMagnitude":0.99999994},"magnitude":2.21178746,"sqrMagnitude":4.892004},{"x":-2.02231526,"y":0.6764293,"z":0.0,"normalized":{"x":-0.9483558,"y":0.3172085,"z":0.0,"magnitude":1.0,"sqrMagnitude":0.99999994},"magnitude":2.13244367,"sqrMagnitude":4.5473156},{"x":-1.99442124,"y":0.5230123,"z":0.0,"normalized":{"x":-0.967293262,"y":0.253660679,"z":0.0,"magnitude":1.0,"sqrMagnitude":1.0},"magnitude":2.061858,"sqrMagnitude":4.251258},{"x":-1.99442124,"y":0.383542776,"z":0.0,"normalized":{"x":-0.982006431,"y":0.1888475,"z":0.0,"magnitude":1.0,"sqrMagnitude":1.0},"magnitude":2.03096557,"sqrMagnitude":4.124821},{"x":-1.980474,"y":0.230125785,"z":0.0,"normalized":{"x":-0.99331665,"y":0.115420744,"z":0.0,"normalized":{"x":-0.9933167,"y":0.115420751,"z":0.0,"magnitude":1.0,"sqrMagnitude":1.0},"magnitude":0.99999994,"sqrMagnitude":0.99999994},"magnitude":1.99379921,"sqrMagnitude":3.97523522}],[{"x":-0.9344492,"y":-4.748954,"z":0.0,"normalized":{"x":-0.193067357,"y":-0.9811855,"z":0.0,"magnitude":1.0,"sqrMagnitude":1.0},"magnitude":4.84001637,"sqrMagnitude":23.4257584},{"x":-0.9344492,"y":-4.748954,"z":0.0,"normalized":{"x":-0.193067357,"y":-0.9811855,"z":0.0,"magnitude":1.0,"sqrMagnitude":1.0},"magnitude":4.84001637,"sqrMagnitude":23.4257584}],[{"x":0.7112968,"y":-4.66527176,"z":0.0,"normalized":{"x":0.1507245,"y":-0.988575757,"z":0.0,"normalized":{"x":0.150724515,"y":-0.9885758,"z":0.0,"magnitude":1.0,"sqrMagnitude":1.0},"magnitude":0.99999994,"sqrMagnitude":0.9999999},"magnitude":4.719185,"sqrMagnitude":22.2707043},{"x":0.7112968,"y":-4.66527176,"z":0.0,"normalized":{"x":0.1507245,"y":-0.988575757,"z":0.0,"normalized":{"x":0.150724515,"y":-0.9885758,"z":0.0,"magnitude":1.0,"sqrMagnitude":1.0},"magnitude":0.99999994,"sqrMagnitude":0.9999999},"magnitude":4.719185,"sqrMagnitude":22.2707043}]]

I am using the code:

Vector3[][] allLines = JsonConvert.DeserializeObject<Vector3[][]>(jsonString);

Why does this exception usually happen?

Exception Screenshot

System.NotSupportedException: System.Reflection.Emit.DynamicMethod::ctor
at System.Reflection.Emit.DynamicMethod..ctor (System.String name; System.Type returntype. System.Type[] paremeterTypes, System.Type [...]
at Newtonsoft.Json.Utilities.DynamicReflectionDelegateFactory.CreateDynamicMethod [...]
At "" CreatenewLoist
At "" CreateList
At "" CreateValueInternal
At "" Desiarilize
At "" DeserializeInternal
at "" DeserializeObject
at "" DeserializeObject[T]
at Draw.Start

Answer 1

Ok Guys. It worked. So I did exactly what the post said that @dbc linked:

1. Get the \unityprojects\football\Packages\Newtonsoft.Json.13.0.1\lib\net20\Newtonsoft.json.dll file where "football" is the projectname.

2. Put it into the folder \assemblies\AOT folder in the unityproject

3. Create the "link.xml" file and put it into the assets folder with the following content:

    <linker> <assembly fullname="Your.Dto.Package.Name" preserve="all" /> <assembly fullname="System.Core"> <type fullname="System.Linq.Expressions.Interpreter.LightLambda" preserve="all" /> </assembly></linker>

Hope that helps if someone has the same problem.