Hi, I'm totally new in crypto. I just purchased $60 USDT (Erc-20) in my Coinbase wallet. I wish to trade or swap it. But, when I am trying to do it that's the time it shows that "I don't have enough Ethereum for Gas fee". Please help me and let me know is there any option to do it without Gas fee?
There is no option for that. You need to pay gas fee by ethereum in order for your transaction to be