cannot use nil as type string in argument to gojenkins.CreateJenkins

[marionxue]

package main

import (
	"fmt"
	"github.com/bndr/gojenkins"
)


func GetNode(){

	jenkins:= gojenkins.CreateJenkins(nil, "http://jenkins.example.com", "username","password")

	nodes,err := jenkins.GetAllNodes()
	if err!=nil{
		panic(err)
	}
	for _,node := range nodes{
		node.Poll()
		online,err:=node.IsOnline()
		if err !=nil {
			panic(err)
		}

		if online{
			fmt.Printf("node is online Running...")
		}
		fmt.Printf(node.GetName())
	}


}

func main(){
	GetNode()
}

but. the output is

# command-line-arguments
./jenkinsclean.go:11:35: cannot use nil as type string in argument to gojenkins.CreateJenkins
./jenkinsclean.go:13:12: assignment mismatch: 2 variables but jenkins.GetAllNodes returns 1 values

[marionxue]

@bndr can you help me to fix it?

[matthorgan]

Due to the semantic version issue #174 , when you import the package, you're actually importing an old version. The old version actually only expects the base string and auth details like so:

jenkins:= gojenkins.CreateJenkins("http://jenkins.example.com", "username","password")

If you want to update to the very latest commit, you could do:

go get github.com/bndr/gojenkins@de43c03cf849dd63a9737df6e05791c7a176c93d

Note: Before the above command, you may have to run go clean --modcache to remove your module cache.

[marionxue]

thx for your help. i have clean module cache and resolv my issue, but what the mean of ./jenkinsclean.go:11:35: cannot use nil as type string in argument to gojenkins.CreateJenkins. after to run my demos. the issue is still here.

[matthorgan]

Apologies, the latest commit is actually:

go get github.com/bndr/gojenkins@de43c03cf849dd63a9737df6e05791c7a176c93d

I've updated my first comment to reflect the correct commit.

I've also made the assumption you're using Go modules. If not, here are the complete steps:

1. Navigate to your project directory and run go mod init <modulename> where <modulename> is whatever you want to call your module. This will create a go.mod and go.sum file in your project directory.
2. Run go get github.com/bndr/gojenkins@de43c03cf849dd63a9737df6e05791c7a176c93d to import the Jenkins module at the latest commit (Nov 2018).
3. You should now be able to run your code with no errors.