In 1810 Canaveris was promoted to Lieutenant of the 4th Regiment, under the orders of the Colonels José Merelo and Ignacio Álvarez Thomas.
In 1812 after the Motín de las Trenzas, Canaveris was appointed as Lieutenant in the Regiment of Patricians, commissioned officer of the 7° Compañia de fusileros, (Fusilier Company), serving in the guarnición of Buenos Aires [REF].