run "make" command error, please help me.

[SeekWorld]

System information

Geth version: v1.10.8

Redis version: no need for this time

OS & Version: Ubuntu Server 20.04.3 LTS

Commit branch and hash: (PPS, 36bd02b)

Expected behaviour

want to build the ./build/bin/open-ethereum-pool file successful

Actual behaviour

root@pool:/home/pps# make
build/env.sh go get -v ./...
go: cannot find main module, but found .git/config in /home/pps/build/_workspace/src/github.com/CryptoManiac/open-ethereum-pool
to create a module there, run:
go mod init
make: *** [Makefile:10: all] Error 1

Steps to reproduce the behaviour

Just run the "make" command

"make" version

make -v
GNU Make 4.2.1
Built for x86_64-pc-linux-gnu
Copyright (C) 1988-2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

I've been using your code for a long time and now the problem is not solved, can you update this repositories? @CryptoManiac

[SeekWorld]

Then I realized if the OS version was too high causing the problem. So I downgraded to use Ubuntu Server LTS version 16.04.7.

It looked like progress was being made, but a new problem emerged：

root@16pool:/home/pps# make
build/env.sh go get -v ./...
github.com/ethereum/go-ethereum (download)
get "golang.org/x/crypto/sha3": found meta tag get.metaImport{Prefix:"golang.org/x/crypto", VCS:"git", RepoRoot:"https://go.googlesource.com/crypto"} at //golang.org/x/crypto/sha3?go-get=1
get "golang.org/x/crypto/sha3": verifying non-authoritative meta tag
golang.org/x/crypto (download)
get "gopkg.in/redis.v3": found meta tag get.metaImport{Prefix:"gopkg.in/redis.v3", VCS:"git", RepoRoot:"https://gopkg.in/redis.v3"} at //gopkg.in/redis.v3?go-get=1
gopkg.in/redis.v3 (download)
get "gopkg.in/bsm/ratelimit.v1": found meta tag get.metaImport{Prefix:"gopkg.in/bsm/ratelimit.v1", VCS:"git", RepoRoot:"https://gopkg.in/bsm/ratelimit.v1"} at //gopkg.in/bsm/ratelimit.v1?go-get=1
gopkg.in/bsm/ratelimit.v1 (download)
github.com/gorilla/mux (download)
github.com/CryptoManiac/ethash (download)
github.com/ethereum/go-ethereum/common/hexutil
golang.org/x/crypto/sha3
github.com/ethereum/go-ethereum/common
github.com/ethereum/go-ethereum/common/math
github.com/CryptoManiac/open-ethereum-pool/util
# github.com/CryptoManiac/open-ethereum-pool/util
util/util.go:40:16: undefined: common.ToHex
gopkg.in/redis.v3/internal
gopkg.in/redis.v3/internal/consistenthash
gopkg.in/redis.v3/internal/hashtag
gopkg.in/bsm/ratelimit.v1
gopkg.in/redis.v3/internal/pool
gopkg.in/redis.v3
github.com/gorilla/mux
github.com/CryptoManiac/ethash/vendor/github.com/ethereum/go-ethereum/crypto/secp256k1
github.com/CryptoManiac/ethash/vendor/github.com/ethereum/go-ethereum/crypto/sha3
github.com/CryptoManiac/ethash/vendor/github.com/ethereum/go-ethereum/rlp
github.com/CryptoManiac/ethash/vendor/github.com/ethereum/go-ethereum/crypto
github.com/CryptoManiac/ethash/vendor/github.com/go-stack/stack
github.com/CryptoManiac/ethash/vendor/github.com/ethereum/go-ethereum/log
github.com/CryptoManiac/ethash
Makefile:10: recipe for target 'all' failed
make: *** [all] Error 2

"make" version

root@16pool:/home/pps# make -v
GNU Make 4.1
Built for x86_64-pc-linux-gnu
Copyright (C) 1988-2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.