Sending Image from c# whatsapp api -


i'am trying send image whatsapp api c# application there code :

byte[] buffer = file.readallbytes(op.filename); wa.sendmessageimage(user.getfulljid() + "@s.whatsapp.net", buffer, apibase.imagetype.gif); messagebox.show("ok");

it gives me error :

an unhandled exception of type 'system.exception' occurred in whatsappapi.dll

additional information: bintreenodereader->readlistsize: invalid token 231


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