[bug]: build lnd 0.18.4 failure: package slices is not in GOROOT

[alevchuk]

Background

I'm following Building a development version from source, yet I got two errors. I was able to fix the first one, but got stuck on the second.

First error:

$ (cd ~/src/lnd && make clean && make install)
/home/lightning/src/lnd/go.mod:212: invalid go version '1.21.4': must match format 1.23

I overcame it by editing go.mod and replacing '1.21.4' with '1.21'

Second error:

$ (cd ~/src/lnd && make clean && make install)
contractcourt/chain_watcher.go:6:2: package slices is not in GOROOT (/home/lightning/src/go/src/slices)

• it happens right after "go: downloading github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec"

Your environment

• version of lnd: d72a3aa tag: v0.18.3-beta
• version of go: 619b8fd7d2c94af12933f409e962b99aa9263555 tag: go1.19.13
• which operating system Debian 11.11: Linux 6.1.21-v8+ #1642 SMP PREEMPT Mon Apr 3 17:24:16 BST 2023 aarch64 GNU/Linux
• any other relevant environment details

My paths are setup like this:

export GOROOT_BOOTSTRAP="$(ls -1d /usr/lib/go-* | tail -n1)"
export GOROOT=~/src/go
export GOPATH=~/gocode
export PATH=$GOROOT/bin:$GOPATH/bin:$PATH

Steps to reproduce

1. build go1.19.13
2. build LND v0.18.3-beta

[alevchuk]

realized i had go 1.18 but "lnd is written in Go, with a minimum version of 1.19"

[alevchuk]

Actually I'm getting the same on go1.19.13

[guggero]

The installation documentation is out of date. The minimum version you need to compile lnd is 1.22 as per the go.mod file. I'll update the docs.

[ziggie1984]

contractcourt/chain_watcher.go:6:2: package slices is not in GOROOT (/home/lightning/src/go/src/slices)

seems like your golang installation is not correct.

try to compile a simple golang program and see whether this works.

GOROOT needs to point to the directory where the golang implementation lies. Normally this is set automatically and is normally /usr/local/go for linux systems.