How to run Scala code in Intellij Idea 10

Question

I have simple problem. I installed idea and scala plugin. Create project and add wants to run simple println("Hello world!").

I create "scala script". Add this line. And when i run it, i have error expected class or object definition.

How can i can run it and see the output?

Thanks

You don't have a `package` statement at the top, do you? (there shouldn't be) — Luigi Plinge, Oct 21 '11 at 22:51

score 30 · Answer 1 · answered Oct 23 '11 at 20:43

30

I have just installed idea + scala plugin and had the same error on running my 1st "hello, world".

I solved it with Run -> Edit Configurations... -> select the script run configuration -> untick "Make" under "Before launch"

answered Oct 23 '11 at 20:43

ililit

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Thank you very much. That was the problem! – nhooyr Mar 13 '15 at 18:20

score 7 · Accepted Answer · answered Oct 21 '11 at 18:52

According to Getting Started with IntelliJ IDEA Scala Plugin:

You can also turn your Scala object into a script. Just remove all declarations from the file, leave the executable statement only - println("Hello, World!"), and run the script as described above.

However I confirm that it results with the same error as you quoted. I think this is a bug (or inaccurate documentaion), file a bug, Jetbrains guys are developing this plugin very actively.

How to run Scala code in Intellij Idea 10

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