Run go simple app with Jetbrains GoLand IDE

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I've just started learning GO. Ok, I've some weird issue and did not figure out how to fix it. I have 2 go file. one is main.go and second is state.go and they are both in same package called main. In state.go file I defined simple function printHello, which then I'm calling it in main.go.

state.go

package main

import "fmt"

func printHello() {
    fmt.Println("Hello World!")
}

main.go

package main

func main()  {
    printHello()
}

When I run it in cmd with command: go run main.go state.go it works fine, but in GoLand IDE it didn't. I tried to build it changed Run Kind to Directory, but without success. Also attached image for more clarification

6 comments
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There are a few ways to manage your code dependencies: Go Modules & GOPATH (will be deprecated soon). I see your project directory doesn't contain go.mod file, so I suppose that you get started with GOPATH. If so, make sure that go env points GOPATH to your current project directory or use Go Modules instead.

I highly recommend starting with Go Modules and you can follow the steps:

  • Initialize go.mod file: go mod init projectName in the terminal (View | Tool Windows | Terminal).
  • Make sure Go modules integration is enabled under Preferences/Settings | Go | Go Modules.

After that, you should be able to run your code inside the IDE with Run kind | Package/Directory (Run | Edit Configurations).

Feel free to provide a bit more details after these steps if it doesn't help.

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First step: I just crated Go.mod file
Actually I don't know, what it is  use for.

second step.

and this is gopath also

 

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Please see https://go.dev/blog/using-go-modules for details about Go Modules.

Do you get the same error after these steps? What version of GoLand are you using?

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yes, I got same error message. 
I'm using GoLand 2020.1 version

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Could you please update GoLand to the latest available version, remove the configuration from Run | Edit Configurations and create a new one via the gutter icon over main() function?

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Vuallla , it is working now as I created configuration via arrow button over main() function.

Thank you very much Daniil

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