Transaction Error Codes

Klaytn provides a field txError in the transaction receipt to give developers more information about the reason for the failed transaction execution. This field exists only if the transaction execution is failed. To save storage and network bandwidth, txError contains an integer value. The below table shows the meaning of the value in txError.

Error Code	Description
0x02	VM error occurs while running smart contract
0x03	max call depth exceeded
0x04	contract address collision
0x05	contract creation code storage out of gas
0x06	evm: max code size exceeded
0x07	out of gas
0x08	evm: write protection
0x09	evm: execution reverted
0x0a	reached the opcode computation cost limit (100000000) for tx
0x0b	account already exists
0x0c	not a program account (e.g., an account having code and storage)
0x0d	Human-readable address is not supported now
0x0e	fee ratio is out of range [1, 99]
0x0f	AccountKeyFail is not updatable
0x10	different account key type
0x11	AccountKeyNil cannot be initialized to an account
0x12	public key is not on curve
0x13	key weight is zero
0x14	key is not serializable
0x15	duplicated key
0x16	weighted sum overflow
0x17	unsatisfiable threshold. Weighted sum of keys is less than the threshold.
0x18	length is zero
0x19	length too long
0x1a	nested composite type
0x1b	a legacy transaction must be with a legacy account key
0x1c	deprecated feature
0x1d	not supported
0x1e	smart contract code format is invalid