Oz upgrade command and the initialize function - does the latter get called by default

Archive SDK
5

Hi @gitpusha (and for future community members reading this)

As per: Error: Cannot find module 'create-hash'

Looking at your packages installed, you currently have @openzeppelin/contracts rather than @openzeppelin/contracts-ethereum-package :

https://docs.openzeppelin.com/sdk/2.5/linking
Make sure you install @openzeppelin/contracts-ethereum-package and not the vanilla @openzeppelin/contracts . The latter is set up for general usage, while @openzeppelin/contracts-ethereum-package is tailored for being used with the OpenZeppelin SDK. This means that its contracts are already set up to be upgradeable.

Though use version 2.2.3 due to OpenZeppelin/openzeppelin-contracts-ethereum-package#70

oz link @openzeppelin/contracts-ethereum-package@2.2.3