could not load export data: no export data for "github.com/ethereum/go-ethereum/metrics"

[yangyile1990]

golangci-lint run
WARN [runner] Can't run linter goanalysis_metalinter: buildir: failed to load package metrics: could not load export data: no export data for "github.com/ethereum/go-ethereum/metrics"
ERRO Running error: 1 error occurred:
* can't run linter goanalysis_metalinter: buildir: failed to load package metrics: could not load export data: no export data for "github.com/ethereum/go-ethereum/metrics"

[yangyile1990]

Cannot use 'namedMetric.less' (type func(namedMetric, namedMetric) bool) as the type func(a namedMetric, b namedMetric) int

slices.SortFunc(namedMetrics, namedMetric.less)

func SortFunc[S ~[]E, E any](x S, cmp func(a, b E) int) {
n := len(x)
pdqsortCmpFunc(x, 0, n, bits.Len(uint(n)), cmp)
}

func (m namedMetric) less(other namedMetric) bool {
return m.name < other.name
}

[karalabe]

I assume your dependencies are wonky. Make sure you have the versions we depend on if you use go-ethereum as a library.

[yangyile1990]

But i don't know the reason.
my mod is:

github.com/ethereum/go-ethereum v1.12.1

golang.org/x/exp v0.0.0-20230810033253-352e893a4cad // indirect

then it failed.

[karalabe]

Do you have other deps too? Maybe something pulls in a newer version of the exp?

[karalabe]

Checked it out, and our dep for exp is v0.0.0-20230515195305-f3d0a9c9a5cc, if I update to your version it indeed fails. Seems you have some other thing that forces the update?

[karalabe]

Yeah, the upstream golang/x/ext broke their API signatures. They ack in in the commit that it's going to be nasty, but that's life. Anyway, opened a PR above to update out dependency too and fix all the broken code.

[yangyile1990]

thank you.