Looking on the internet deeply has found these results:

agreement on the next is the most popular phrase on the web.

agreement of the next 131,600,000 results on the web	agreement on the next 146,900,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	Hence, the decision on extending the programme for a further period can be made only once an agreement on the next financial perspective has been reached. In case of an agreement on the next FP Both the Commission and the Council should be aware that there can be no agreement on the next FP/IIA without agreement with the European Parliament, and that EP agreement will be conditional on its agreement on the IIA, which should take on board qualitative elements as well. 2013) has been reached. On 17 December 2005, the European Council finally reached an agreement on the next multiannual financial framework 2007 The rapporteur is in favour of the latter option, whereby the final decision on appropriations for 2007 should be taken only once an agreement on the next financial perspective (2007 This was a portent of the difficulties that the Council will face in reaching agreement on the next Multiannual Financial Framework and on new own resources, which, as we know, require unanimity in the Council. 2013.

agreement of the next

131,600,000 results on the web

agreement on the next

146,900,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

Hence, the decision on extending the programme for a further period can be made only once an agreement on the next financial perspective has been reached.
In case of an agreement on the next FP
Both the Commission and the Council should be aware that there can be no agreement on the next FP/IIA without agreement with the European Parliament, and that EP agreement will be conditional on its agreement on the IIA, which should take on board qualitative elements as well.
2013) has been reached.
On 17 December 2005, the European Council finally reached an agreement on the next multiannual financial framework 2007
The rapporteur is in favour of the latter option, whereby the final decision on appropriations for 2007 should be taken only once an agreement on the next financial perspective (2007
This was a portent of the difficulties that the Council will face in reaching agreement on the next Multiannual Financial Framework and on new own resources, which, as we know, require unanimity in the Council.
2013.