configure run in eclipse for Scala

Question

I am a beginner in Scala. I installed Scala IDE in eclipse and now I want to run my application programme. It never shows \"run as Scala application\", instead it shows \"run

Answer 1

make sure your declared package in your source code matches the directory structure under your source directory.

in this case, a sourcefile declaring package "greeter" will auto-run as scala if the source file is indeed under src/greeter/Hello.scala (and not just under src/Hello.scala)

Its a common mistake that doesn't get highlighted by the syntax checker.