找不到方法 Void Newtonsoft.Json.JsonConvert.set_DefaultSettings
因为 Newtonsoft.Json.dll 的版本号问题：
C:Program Files (x86)Microsoft Visual Studio 12.0Blend
下的版本号为 4.5.11
最新版本号为 6.0.4
下载。复制，替换。攻克了。
版本号啦，版本号。
•New feature - Added Merge to LINQ to JSON
•New feature - Added JValue.CreateNull and JValue.CreateUndefined
•New feature - Added Windows Phone 8.1 support to .NET 4.0 portable assembly
•New feature - Added OverrideCreator to JsonObjectContract
•New feature - Added support for overriding the creation of interfaces and abstract types
•New feature - Added support for reading UUID BSON binary values as a Guid
•New feature - Added MetadataPropertyHandling.Ignore
•New feature - Improved performance of KeyValuePairConverter
•New feature - Improved performance when serializing large XML documents
•Change - Limited integer parsing size to JavaScript integer size
•Change - Validation that numbers don't end with an invalid character
•Fix - Fixed JToken.ReadFrom creating a string value for a comment
•Fix - Fixed relying on Dictionary order when calling parameterized constructors
•Fix - Fixed writing new lines to use TextWriter.WriteLine
•Fix - Fixed deserializing non-generic IReadOnlyCollection<T> implementations
•Fix - Fixed sending HTTP requests when resolving DTD urls in XmlNodeConverter
•Fix - Fixed populating ignored properties with DefaultValueHandling.IgnoreAndPopulate
•Fix - Fixed not throwing JsonReaderException when parsing some invalid numbers
•Fix - Fixed JsonConvert.PopulateObject not setting JsonReader settings
•Fix - Fixed deserializing JObjects starting with a comment
•Fix - Fixed using DateParseHandling and FloatParseHandling with DataTable/DataSet
•Fix - Fixed serializing static fields
•Fix - Fixed selecting a property after an empty array with a JSON Path query
•Fix - Fixed error handling when last value in array or object fails
•Fix - Fixed directly serializing XmlElements
•Fix - Fixed incorrect NuGet targets on .NET 4.5 portable assembly
•Fix - Fixed using JTokenEqualityComparer with JProperties that have no value
•Fix - Fixed MetadataPropertyHandling.ReadAhead bugs