File: index-coop-notional-trade-module/contracts/protocol/modules/v1/NotionalTradeModule.sol

169:          require(_setToken.isComponent(address(_sendToken)), "Send token must be an index component");

199:          require(_setToken.isComponent(address(wrappedfCash)), "FCash to redeem must be an index component");

227:              require(allowedSetTokens[_setToken], "Not allowed SetToken");

234:          require(_setToken.isInitializedModule(getAndValidateAdapter(DEFAULT_ISSUANCE_MODULE_NAME)), "Issuance not initialized");

269:          require(_setToken.isInitializedModule(address(_debtIssuanceModule)), "Issuance not initialized");

280:          require(controller.isSet(address(_setToken)) || allowedSetTokens[_setToken], "Invalid SetToken");

378:          require(wrappedfCashAddress.isContract(), "WrappedfCash not deployed for given parameters");

449:          require(sentAmount <= _maxSendAmount, "Overspent");

485:          require(receivedAmount >= _minReceiveAmount, "Not enough received amount");

573:              require(_paymentToken == assetToken, "Token is neither asset nor underlying token");
File: notional-wrapped-fcash/contracts/wfCashBase.sol

37:           require(cashGroup.maxMarketIndex > 0, "Invalid currency");

40            require(
41                DateTime.isValidMaturity(cashGroup.maxMarketIndex, maturity, block.timestamp),
42                "Invalid maturity"
43:           );
File: notional-wrapped-fcash/contracts/wfCashERC4626.sol

23:           require(underlyingExternal > 0, "Must Settle");
File: notional-wrapped-fcash/contracts/wfCashLogic.sol

57:           require(!hasMatured(), "fCash matured");

116           require(
117               msg.sender == address(NotionalV2) &&
118               // Only accept the fcash id that corresponds to the listed currency and maturity
119               _id == fCashID &&
120               // Protect against signed value underflows
121               int256(_value) > 0,
122               "Invalid"
123:          );

211:          require(opts.receiver != address(0), "Receiver is zero address");

225:              require(0 < cashBalance, "Negative Cash Balance");
