require strictly same package version

[VojtaStanek]

The problem was that package dependencies resolved to version v1.4 from v1.0 (e.g. schema-utils v1.0 from schema-definition) Which doesn't contain some required classes.

For example: I was using [email protected] which would resolve it's dependency to [email protected].

Solution: Switch from caret for dependencies to strict equality.

This problem causes this: