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Uniswap is a decentralized finance protocol that is used to exchange cryptocurrencies.

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Swap token to ether through Uni-V2 yields Fail with error 'TransferHelper: ETH_TRANSFER_FAILED'

payable returns (bool) { address[] memory path = new address[](2); uint deadline = block.timestamp + 600; path[0] = token; path[1] = WETH; require(IERC20(token).approve(address(uniswap … ), (amountIn + 10000)), 'Uniswap approval failed'); uniswap.swapExactTokensForETH( amountIn, 1, //MIN FIXED TO 1 FOR TESTING path, address(this), deadline …
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