need help

[ghost]

it saying 2: cannot find package "github.com/valyala/fasthttp" in any of:
/usr/lib/go-1.15/src/github.com/valyala/fasthttp (from $GOROOT)
/root/go/src/github.com/valyala/fasthttp (from $GOPATH)

[QuartzWarrior]

https://lmgtfy.com

https://github.com/valyala/fasthttp#install

go get -u github.com/valyala/fasthttp

[Egemenbdk]

go: go.mod file not found in current directory or any parent directory.
'go get' is no longer supported outside a module.
To build and install a command, use 'go install' with a version,
like 'go install example.com/cmd@latest'
For more information, see https://golang.org/doc/go-get-install-deprecation
or run 'go help get' or 'go help install'.

[zerootoad]

use go mod init main.go
then go get github.com/valyala/fasthttp @Egemenbdk