Fail with error 'TransferHelper: TRANSFER_FROM_FAILED'

Smart Contracts
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1

Hello All ,
i Have A Create Smart Contract Router
After Send Order buy Give me Error Fail with error 'TransferHelper: TRANSFER_FROM_FAILED'

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1888×823 44.4 KB

My Source Contract : https://github.com/Supercycled/cake_sniper/tree/master/contracts

Please Help Me , Thanks

2

Hi, it seems like there is not enough allowance, so has src called token.approve(msg.sender, MAX), and just check what is the result of allowance[src][msg.sender]

3

Hello sir , How Are you?
i Have Create Smart contract Router

And My Transction faild .
Can you Help Me Please?

        require(allowance[src][msg.sender] >= wad);

execution reverted

1
1888×823 44.4 KB

4

i Have Use Source smart contract :

Can you check Please ? Thanks Sir