php - Requested package goetas/xsd2php 2.0 exists as goetas/xsd2php[1.0 but these are rejected by your constraint -

i have loaded composer via ssh in mygodaddy hosting , installed authorize.net php-sdk. changed composer.json based on instructions using latest hot fix here. when composer update, getting error:

problem 1

• the requested package goetas/xsd2php 2.0.x-dev#fdc2ab0bb3f2b3ab796ca567cf8c0f3446a7ea3a exists goetas/xsd2php[1.0.0, 1.0.1, 2.0.0, 2.0.0-alpha, 2.1.0, dev-goetas-runtime, dev-master, 2.1.x-dev, dev-official-serializer] these rejected constraint.

i dont know fix this, please help..

you should change in require-dev "goetas/xsd2php": "2.*@dev", "goetas/xsd2php": "dev-master#fdc2ab0bb3f2b3ab796ca567cf8c0f3446a7ea3a",

or use 1.8.9 sdk version