119 lines
3.1 KiB
Markdown
119 lines
3.1 KiB
Markdown
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# Error Handling Guide
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## Overview
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This guide explains common errors in the trustless bridge system and how to resolve them.
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## Common Errors
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### Deposit Errors
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#### ZeroAmount
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**Error**: `ZeroAmount()`
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**Cause**: Attempting to deposit zero amount
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**Solution**: Ensure deposit amount > 0
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#### ZeroRecipient
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**Error**: `ZeroRecipient()`
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**Cause**: Recipient address is zero
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**Solution**: Provide valid recipient address
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#### DepositAlreadyProcessed
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**Error**: `DepositAlreadyProcessed()`
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**Cause**: Deposit ID already used
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**Solution**: Use unique nonce for each deposit
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### Claim Errors
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#### InsufficientBond
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**Error**: `InsufficientBond()`
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**Cause**: Bond amount less than required
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**Solution**: Calculate required bond: `max(depositAmount * 1.1, 1 ETH)`
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#### ClaimAlreadyExists
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**Error**: `ClaimAlreadyExists()`
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**Cause**: Claim already submitted for deposit ID
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**Solution**: Deposit ID can only be claimed once
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#### ClaimNotFound
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**Error**: `ClaimNotFound()`
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**Cause**: Attempting to access non-existent claim
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**Solution**: Verify deposit ID is correct
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### Challenge Errors
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#### ChallengeWindowExpired
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**Error**: `ChallengeWindowExpired()`
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**Cause**: Challenge window has passed
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**Solution**: Submit challenge within 30 minutes
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#### InvalidFraudProof
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**Error**: `InvalidFraudProof()`
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**Cause**: Fraud proof is invalid
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**Solution**: Verify proof format and data
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### Liquidity Pool Errors
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#### InsufficientLiquidity
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**Error**: `InsufficientLiquidity()`
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**Cause**: Not enough liquidity in pool
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**Solution**: Wait for more liquidity or provide liquidity
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#### WithdrawalBlockedByLiquidityRatio
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**Error**: `WithdrawalBlockedByLiquidityRatio()`
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**Cause**: Withdrawal would violate minimum ratio (110%)
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**Solution**: Wait for claims to finalize or reduce withdrawal amount
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#### UnauthorizedRelease
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**Error**: `UnauthorizedRelease()`
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**Cause**: Contract not authorized to release funds
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**Solution**: Only authorized contracts can release
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## Error Codes Reference
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| Error | Code | Severity | Action |
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|-------|------|----------|--------|
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| ZeroAmount | 0x01 | Low | Check amount |
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| ZeroRecipient | 0x02 | Low | Provide recipient |
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| InsufficientBond | 0x03 | Medium | Increase bond |
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| ClaimNotFound | 0x04 | Medium | Verify deposit ID |
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| ChallengeWindowExpired | 0x05 | Medium | Submit earlier |
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| InvalidFraudProof | 0x06 | High | Verify proof |
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| InsufficientLiquidity | 0x07 | High | Wait or add liquidity |
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| WithdrawalBlocked | 0x08 | Medium | Wait or reduce amount |
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## Recovery Procedures
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### Failed Deposit
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1. Check error message
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2. Verify parameters
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3. Retry with correct parameters
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4. Contact support if persistent
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### Failed Claim
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1. Verify bond amount
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2. Check claim doesn't exist
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3. Retry with correct parameters
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4. Monitor for relayer submission
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### Failed Challenge
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1. Verify challenge window
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2. Check fraud proof format
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3. Verify proof data
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4. Retry if within window
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## Support
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- **Documentation**: `docs/bridge/trustless/`
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- **Operations**: `docs/operations/`
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- **Support**: [Contact Information]
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## References
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- Contracts: `contracts/bridge/trustless/`
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- Architecture: `docs/bridge/trustless/ARCHITECTURE.md`
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