I am looking to convert the upgradeable contracts I have written to now be zos compatible.
For starters I am just simply following this tutorial to get familiar with the mechanics: https://docs.zeppelinos.org/docs/upgrading.html
For some reason when I try and run the new ‘increment’ function in the upgraded contract from the truffle console I get:
Error: Returned error: VM Exception while processing transaction: revert
I believe I have followed the tutorial exactly so not sure what is causing that issue?