Error codes

This section contains a list of all possible errors that might occur while using

import { Unirep } from '@unirep/contracts/Unirep.sol';

info

When developing with hardhat environment, these custom errors can be seen in the _selector:

Error: cannot estimate gas; transaction may fail or may require manual gas limit
...,
{"type":18,"address":{"type":"Buffer","data":[183,248,188,99,187,202,209,129,85,32,19,8,200,243,84,11,7,248,79,94]},"message":{"value":{"type":"Buffer","data":[103,103,221,161,0,0,0,0,0,0,0,0,0,0,0,0,165,28,31,194,240,209,161,184,73,78,209,254,49,45,124,58,120,237,145,192]},"_selector":"6767dda1"},"isInvalidOpcodeError":false}],"data":"0x6767dda1000000000000000000000000a51c1fc2f0d1a1b8494ed1fe312d7c3a78ed91c0"}, code=UNPREDICTABLE_GAS_LIMIT, version=providers/5.7.2)

0x099cfcff

• UserAlreadySignedUp(uint256 identityCommitment)
  The given identity commitment has already signed up in the current Unirep contract.
  A user cannot double sign-up in an application.

0x6767dda1

• AttesterAlreadySignUp(uint160 attester)
  The attester has already signed up in the current Unirep contract.
  An attester cannot double sign-up in the Unirep protocol.

0xd724105a

• AttesterNotSignUp(uint160 attester)
  The attester has not signed up in the current Unirep contract.
  Please call attesterSignUp()

0xd7aa5847

• AttesterInvalid()
  The given attester address is not a valid uint160 type data.
  Please check if the attester address is correctly assigned while generating proofs.

0xa78d09b9

• CallerInvalid()
  The caller address is not the same as the attester address in a verifier helper contract.
  Please verify the caller address.

0xdc215c0a

• NullifierAlreadyUsed(uint256 nullilier)
  The nullifier is already used in Unirep contract.
  A nullifier cannot be submitted twice in the Unirep protocol.

0xedc650d7

• AttesterIdNotMatch(uint160 attesterId)
  The msg.sender does not match the claimed attester ID.
  Please send the transaction through the attester.

0x7db3aba7

• OutOfRange()
  A replacement field data cannot be out of SNARK_SCALAR_FIELD.
  Please use a value which is less than SNARK_SCALAR_FIELD.

0x7fa0b337

• InvalidField()
  An attestation was made to a field that was either out of range, or not capable of receiving attestations.

0x8baa579f

• InvalidSignature()
  The signature does not match the attester ID.
  Please make sure the signature is signed through the correct attester.

0x2217bbbc

• InvalidEpochKey()
  If The epoch key is greater than SNARK_SCALAR_FIELD is recognized invalid.

0x53d3ff53

• EpochNotMatch()
  Current epoch does not match the epoch in the proof or the target epoch.
  Please check the current epoch and generate a corresponding proof.

0xa225656d

• InvalidEpoch(uint256 epoch)
  The epoch in the proof is greater than the current epoch.
  Please check the current epoch and generate a corresponding proof.

0x09bde339

• InvalidProof()
  The proof is verified invalid through on-chain verifiers.
  Please verify it with the off-chain prover.
  If it is valid off-chain but invalid through on-chain verifiers, please check the if the proving keys match the ones on-chain.

0xd542f669

• InvalidHistoryTreeRoot(uint256 historyTreeRoot)
  The epoch tree root of given epoch does not match the current Unirep contract.
  Please check if all attestations are processed correctly and successfully.