abigen failed with latest dev version

[fenghaojiang]

System information

abigen version:

abigen version 2.31.0-dev

OS & Version: Windows & MacOS

Commit hash :

abigen --abi=./abis/erc20/erc20.abi --pkg=erc20 --out=./abis/erc20/erc20.go

Expected behaviour

normal output an erc20.go file

Actual behaviour

panic: invalid argument, not cli.Flag type: cli.StringFlag

goroutine 1 [running]:
github.com/ledgerwatch/erigon/cmd/utils.CheckExclusive(0x12f0a60?, {0xc000493900, 0x4, 0xfffffffe00000000?})
        G:/github_repo/erigon/cmd/utils/flags.go:1387 +0x55b
main.abigen(0xc000403b80?)
        G:/github_repo/erigon/cmd/abigen/main.go:122 +0x10e
github.com/urfave/cli/v2.(*Command).Run(0xc000403b80, 0xc0016c3400, {0xc000088040, 0x4, 0x4})
        C:/Users/jiang/go/pkg/mod/github.com/urfave/cli/[email protected]/command.go:271 +0xaab
github.com/urfave/cli/v2.(*App).RunContext(0xc0001f8f00, {0x1979cc0?, 0xc000042110}, {0xc000088040, 0x4, 0x4})
        C:/Users/jiang/go/pkg/mod/github.com/urfave/cli/[email protected]/app.go:329 +0x665
github.com/urfave/cli/v2.(*App).Run(...)
        C:/Users/jiang/go/pkg/mod/github.com/urfave/cli/[email protected]/app.go:306
main.main()
        G:/github_repo/erigon/cmd/abigen/main.go:272 +0x7b

Steps to reproduce the behaviour

Backtrace

[backtrace]

[skillful-alex]

Related issue urfave/cli#925

[fenghaojiang]

Related issue urfave/cli#925

Thank you. I will have a check and see if the problem solved. Really appreciated for you comment.