WCF can not read XML -

i received xml value android.

on .net have coded:

 try             {                 var reader = operationcontext.current.requestcontext.requestmessage.getreaderatbodycontents();                  if (reader.read())                 {                  result +=   reader.readstring();                 } 

but got error

character not attended '<'

any ideas ?

getreaderatbodycontents returns xmldictionaryreader. that-> https://stackoverflow.com/a/1708681/1923256