Server Error in '/' Application.

Unable to translate Unicode character \uDF00 at index 0 to specified code page.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Text.EncoderFallbackException: Unable to translate Unicode character \uDF00 at index 0 to specified code page.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[EncoderFallbackException: Unable to translate Unicode character \uDF00 at index 0 to specified code page.]
   System.Text.EncoderExceptionFallbackBuffer.Fallback(Char charUnknown, Int32 index) +159
   System.Text.EncoderFallbackBuffer.InternalFallback(Char ch, Char*& chars) +279
   System.Text.UTF8Encoding.GetByteCount(Char* chars, Int32 count, EncoderNLS baseEncoder) +14476078
   System.Text.UTF8Encoding.GetByteCount(String chars) +58
   System.IO.BinaryWriter.Write(String value) +58
   System.Web.UI.ObjectStateFormatter.SerializeValue(SerializerBinaryWriter writer, Object value) +2590

[ArgumentException: Error serializing value 'System.String[]' of type 'System.String[].']
   System.Web.UI.ObjectStateFormatter.SerializeValue(SerializerBinaryWriter writer, Object value) +4360
   System.Web.UI.ObjectStateFormatter.Serialize(Object stateGraph, Purpose purpose) +96
   System.Web.UI.Util.SerializeWithAssert(IStateFormatter2 formatter, Object stateGraph, Purpose purpose) +61
   System.Web.UI.HiddenFieldPageStatePersister.Save() +121
   System.Web.UI.Page.SaveAllState() +829
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +7905


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.4076.0