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SafeERC20: low-level call failed

Code Hero answered on July 2, 2022 Popularity 6/10 Helpfulness 5/10

answer SafeERC20: low-level call failed

SafeERC20: low-level call failed

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# if you are about to lend, swap, or deposit a token,
# check if you have approved the token contract with
token = interface.IERC20(erc20_address)
tx = token.approve(approved_spender, amount, {"from": account})
# so that approved_spender can spend amount.
#
# if you have approved but still receiving an error,
# check if you have enought token amount to spend
# e.g. you approve to deposit 0.2 weth but you have only 0.1 weth in your balance

# finally, check if your gas limit is high enought

Popularity 6/10 Helpfulness 5/10 Language python

Source: Grepper

Tags: call low-level python

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Contributed on Jul 02 2022

Code Hero

0 Answers Avg Quality 2/10

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SafeERC20: low-level call failed

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