genesis.json: failed to unmarshal feeibc genesis state: EOF

[alpha-omega-labs]

Hello,
We are forking cronos to be new GenesisL1 codebase (migrating from old ethermint) and experiencing issue during genesis.json validation:

genesis.json: failed to unmarshal feeibc genesis state: EOF

genesis.json was successfully migrated via "migrate" command of cronosd. And this issue appears.
Can you please provide heads up on how to solve it and where is potential bug?
cosmos/cosmos-sdk#17198

Thank you!

[mmsqe]

Not sure how you operate, but export works fine after migrate.

[alpha-omega-labs]

Yes, but we are looking at import/ genesis.json state initialization bug - not export with cronosd.

1. Export state from other chain sdk v 0.44
2. Migrate state to v0.46 with cronosd
3. Validate genesis.json with cronosd, got error:
   genesis.json: failed to unmarshal feeibc genesis state: EOF

[mmsqe]

@alpha-omega-labs Got it thanks, but not sure if we could add some callback to allow sdk migrate with custom module.

[alpha-omega-labs]

You mean your custom module or our custom module? Because we don't have any custom module :)
We just want to use up-to date open source ethermint software for managing our general blockchain with specific data. Our state is a state of first evmos version (by modules structure). And we will be glad to gain some new modules implemented by cronos during time.

[mmsqe]

You mean your custom module or our custom module? Because we don't have any custom module :)

since sdk only migrate gov and staking in v43 and v46, we need custom handle for feeibc, evm, cronos related migrate in different versions