I usually get that when I put in a signer instead of the signer's address. The basic idea is that you're putting in something other than a hex address, so the compiler's first thought is that it must be an ENS address (ENS addresses are a way to attach a url-like identifier to an address, like vitalik.eth).
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I usually get that when I put in a signer instead of the signer's address. The basic idea is that you're putting in something other than a hex address, so the compiler's first thought is that it must be an ENS address (ENS addresses are a way to attach a url-like identifier to an address, like
vitalik.eth).