While investigating, we were able to replicate the bug with an older version of Go. However, just changing go.mod didn’t fix it, we had to change the GOTOOLCHAIN environment variable as well.
@aaron-hwang Could you please share (1) the output of go env when run from within your project folder? And (2) the content of your GOENV config file?
For me, GOENV is at /Users/andy/Library/Application Support/go/env. Yours should be at a different path, but visible once you run go env.
This’ll help us figure out what additional changes might be required.