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Error Codes

Messages that may be emitted by the contracts when your transaction fails and their meanings

Core

NOT_LOCKED

You did not call the #lock method on ICore before calling a method that requires it, e.g. #swap or #update_position.

NOT_LOCKER

Core is locked, but the caller of the method is not the most recent locker.

NOT_ZEROED

You did not zero out all the deltas before releasing the lock, i.e. returning from the #locked.
This means you did not pay the sum of the deltas generated from all your actions, e.g. if you made only a single swap you either did not pay the required amount of input token or take the received amount of output token. Make sure to use the amounts returned from these calls, rather than amounts passed in from elsewhere.

ALREADY_INITIALIZED

The pool is already initialized. Prefer to call #maybe_initialize_pool if you would like to handle this more gracefully.

NOT_INITIALIZED

A method was called for a pool that was not initialized.

LIMIT_DIRECTION

The sqrt_ratio_limit parameter given to a swap must be in the direction of the swap. For example, if your swap increasing the token0 balance of the pool, your sqrt_ratio_limit parameter must be greater than the current sqrt_ratio.

LIMIT_MAG

The magnitude of your sqrt_ratio_limit parameter exceeds the minimum or maximum value, which are 18446748437148339061 and 6277100250585753475930931601400621808602321654880405518632 respectively.

MUST_COLLECT_FEES

You must collect all the fees for a position before withdrawing all the liquidity.

NEXT_FROM_MAX

You cannot call #next_initialized_tick starting from the maximum tick.

PREV_FROM_MIN

You cannot call #prev_initialized_tick starting from the minimum tick.

INSUFFICIENT_RESERVES

You attempted to withdraw more of a token than the last known balance of the core contract.

WITHDRAWALS_ONLY

The contract is currently in withdrawals only mode, meaning you can only perform actions that reduce the core contract balance.

BALANCE_LT_RESERVE

This means the core contract got into an invalid state where the token balance is less than the last recognized balance, which can happen if the token is rebasing or otherwise not well-behaved.

DELTA_EXCEEDED_MAX

The delta for a token's balance cannot exceed the maximum u128 value. In general, tokens that have total supply greater than the max u128 may encounter issues and should be avoided.

INSUFFICIENT_SAVED_BALANCE

You attempted to load more than was saved for a saved balance.

Positions

BALANCE_OVERFLOW

The balance of the token exceeds the max u128 value. The positions contract only works with tokens that have a total supply less than the max u128 value.

MIN_TOKEN0

When withdrawing liquidity, your slippage tolerance for token0 was not met, i.e. not enough token0 was withdrawn.

MIN_TOKEN1

When withdrawing liquidity, your slippage tolerance for token1 was not met, i.e. not enough token1 was withdrawn.

LIQUIDITY_MUST_BE_ZERO

When burning an NFT using the safer version, which requires you to specify the pool key, the liquidity was not zero.

UNAUTHORIZED

You must be approved or the owner of an NFT or the operator of an account to modify the related position(s).

MIN_LIQUIDITY

The minimum size of the position was not met with the given amount of tokens. This is the slippage check for adding liquidity.