[1][2] Until that time the revolution had been running without major problems, but the execution of Dorrego displeased many of the factions; the gauchos from the countryside of the province revolted;[3] many leaders of the city of Buenos Aires declared themselves against Lavalle;,[4] general José María Paz took a good part of the army in a campaign against Córdoba Province;.
[6] Rosas established a siege of Buenos Aires, precluding Lavalle's forces and the entire population of the city of receiving any kind of external help or supplies, including food.
Without prior notice, Lavalle left one night, accompanied only by an aide to Rosas' headquarters in the town of Cañuelas.
Lavalle, who had personally signed this agreement in Cañuelas, and his followers, who admitted they had underestimated Rosas, started negotiations anew.
The result of this would be the Barracas Convention, where they would recall the Legislature from the times of Dorrego and general Juan José Viamonte would assume a provisional government.