Verification Failed: compiler_error - Gnosis (100) 0x63bf...5fF3

[bbjubjub2494]

I was not able to verify this Vyper 0.4.3 contract

Verification Job Failed

Job ID: d31eb4d7-012c-40c4-a645-8f14f8d69725
Chain: Gnosis (100)
Contract Address: 0x63bff3e1E782b3Ea432321De378C6F8D21705fF3
Error Code: compiler_error
Server URL: https://sourcify.dev/server

Error Details

Compiler error. Vyper not found. Maybe an incorrect version was provided. /home/app/data/compilers/vyper/vyper.0.4.3+commit.bff19ea2.linux - 0.4.3+commit.bff19ea2 - linux

Additional Information

• Job Started: 2025-07-28T21:48:58.000Z
• Job Finished: 2025-07-28T21:48:59.000Z

User Input and Expectation

Why do you expect this verification to succeed?

Files Used:

RaffleImplementation.json

Additional Context:

---

This issue was automatically generated from the Sourcify verification UI.

[manuelwedler]

Probably the same as #2229

[kuzdogan]

Thanks for the report! Is this from a foundry project?

I see the same error in the staging and as @manuelwedler says likely same as #2229 but locally I got a ModuleNotFound error:

{
  "component": "compiler",
  "formattedMessage": "pcaversaccio.snekmate.src.snekmate.utils.block_hash\n\n  contract \"contracts/RaffleImplementation.vy:6\", line 6:0 \n       5\n  ---> 6 from pcaversaccio.snekmate.src.snekmate.utils import block_hash as bh\n  -------^\n       7\n",
  "message": "pcaversaccio.snekmate.src.snekmate.utils.block_hash",
  "severity": "error",
  "sourceLocation": {
    "file": "contracts/RaffleImplementation.vy"
  },
  "type": "ModuleNotFound"
}

[bbjubjub2494]

Thanks for the report! Is this from a foundry project?

You're welcome. No, this is a Moccasin project which is at https://github.com/bbjubjub2494/randao-raffle (I am not sure the exact commit I was on yesterday unfortunately)

I see the same error in the staging and as @manuelwedler says likely same as #2229 but locally I got a ModuleNotFound error:

{
"component": "compiler",
"formattedMessage": "pcaversaccio.snekmate.src.snekmate.utils.block_hash\n\n contract "contracts/RaffleImplementation.vy:6", line 6:0 \n 5\n ---> 6 from pcaversaccio.snekmate.src.snekmate.utils import block_hash as bh\n -------^\n 7\n",
"message": "pcaversaccio.snekmate.src.snekmate.utils.block_hash",
"severity": "error",
"sourceLocation": {
"file": "contracts/RaffleImplementation.vy"
},
"type": "ModuleNotFound"
}

That's fair. I think these are two different errors. This second one is on me, the paths of the files and the imports don't match. Since then, I have iterated and managed to produced a json that was accepted by Etherscan for a different version of the contract. If #2229 can be fixed on your side, I will gladly submit all of my JSONs on Sourcify.

[bbjubjub2494]

Here is the fixed json: RaffleImplementation.json

And the contract: 0xF3Ca84f58265b2f1967077123f36505330B78954

EDIT: oh and it worked on blockscout as well: https://gnosis-chiado.blockscout.com/address/0xF3Ca84f58265b2f1967077123f36505330B78954