# Error Codes

| Code | Name                             | Description                                                                                                                                                                    |
| ---- | -------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| 0    | `NO_ERROR`                       | Not a failure.                                                                                                                                                                 |
| 1    | `UNAUTHORIZED`                   | The sender is not authorized to perform this action.                                                                                                                           |
| 2    | `BAD_INPUT`                      | An invalid argument was supplied by the caller.                                                                                                                                |
| 3    | `COMPTROLLER_REJECTION`          | The action would violate the comptroller policy.                                                                                                                               |
| 4    | `COMPTROLLER_CALCULATION_ERROR`  | An internal calculation has failed in the comptroller.                                                                                                                         |
| 5    | `INTEREST_RATE_MODEL_ERROR`      | The interest rate model returned an invalid value.                                                                                                                             |
| 6    | `INVALID_ACCOUNT_PAIR`           | The specified combination of accounts is invalid.                                                                                                                              |
| 7    | `INVALID_CLOSE_AMOUNT_REQUESTED` | The amount to liquidate is invalid.                                                                                                                                            |
| 8    | `INVALID_COLLATERAL_FACTOR`      | The collateral factor is invalid.                                                                                                                                              |
| 9    | `MATH_ERROR`                     | A math calculation error occurred.                                                                                                                                             |
| 10   | `MARKET_NOT_FRESH`               | Interest has not been properly accrued.                                                                                                                                        |
| 11   | `MARKET_NOT_LISTED`              | The market is not currently listed by its comptroller.                                                                                                                         |
| 12   | `TOKEN_INSUFFICIENT_ALLOWANCE`   | ERC-20 contract must *allow* Money Market contract to call transferFrom. The current allowance is either 0 or less than the requested supply, repayBorrow or liquidate amount. |
| 13   | `TOKEN_INSUFFICIENT_BALANCE`     | Caller does not have sufficient balance in the ERC-20 contract to complete the desired action.                                                                                 |
| 14   | `TOKEN_INSUFFICIENT_CASH`        | The market does not have a sufficient cash balance to complete the transaction. You may attempt this transaction again later.                                                  |
| 15   | `TOKEN_TRANSFER_IN_FAILED`       | Failure in ERC-20 when transfering token into the market.                                                                                                                      |
| 16   | `TOKEN_TRANSFER_OUT_FAILED`      | Failure in ERC-20 when transfering token out of the market.                                                                                                                    |