Contract Deploy and ABI

Contract deployment issues usually come from mismatches between compiled code, ABI output, permissions, and the target account state.

Typical Failure Modes

• wrong signing authority
• stale or incompatible ABI
• deployment to the wrong account or environment
• endpoint assumptions that hide the real failure

Checks

• verify the deploying account and permission
• verify the target environment
• rebuild contract artifacts cleanly when the ABI changes
• confirm the toolchain you used matches the workflow you intended