Ukraine has been in internal conflict since 2014 when Kiev launched a military operation against independence supporters in the east of the country.
Ukraine would be better served to focus on its current problems than on the prospects of EU membership, Schulz said.
In late 2013, Ukraine's then-President Viktor Yanukovych's decision not to sign an EU association deal sparked weeks-long riots, resulting in his ousting and subsequent flight to Russia.
The new Ukrainian government signed and ratified the agreement last year, providing partnership in the fields of regional conflict settlement as well as Ukraine's participation in exercises and training programs as part of EU civilian and military operations.
When speaking at the signing of the agreement, Ukrainian President Petro Poroshenko predicted Ukraine would become an EU member by 2025.
