World Rugby, Sanzaar, the Six Nations, the British and Irish Lions and representatives of top European clubs attended.
Robinson said the Six Nations Unions, such as England and France, are keen to sort the calendar out, but French and English clubs rejected the plans.
"Sanzaar and Six Nations were the ones who took the working proposals to the meeting...and we are very very aligned as we are with World Rugby and the various Players Associations around the world.
