Running Scala code from the command line

Question

Apologies as this is likely a dumb question but I am new to Scala.

Trying to run the following project from the command line

https://github.com/falconair/ComposingContracts

But getting the following

justin@justin-ThinkPad-X240:~/work/ComposingContracts$ scala src/main/scala/Main.scala 
/home/justin/work/ComposingContracts/src/main/scala/Main.scala:5: error: not found: value ComposingContracts
import ComposingContracts._
       ^
one error found
justin@justin-ThinkPad-X240:~/work/ComposingContracts$

The structure of the code looks like I should be able to run it from the command line. This looks to me like it's probably some kind of classpath error. But I don't know enough Scala to be sure.

Thanks in advance.

You have to use the build tool sbt to build and run that code. — Jesper
– Jesper, Commented May 26, 2016 at 12:12

meucaa · Accepted Answer · 2016-05-26 12:59:51Z

2

As said by Jesper, you have to use sbt to run this code :

Install sbt (here)
Go to the folder where is located the build.sbt file
Run the following command : sbt run

More information about sbt commands can be found here

EDIT : as mentionned in the comments, you can use sbt console

sbt console starts the Scala interpreter with a classpath including the compiled sources, all jars in the lib directory, and managed libraries.

edited May 26, 2016 at 12:59

answered May 26, 2016 at 12:25

meucaa

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1 Comment

Sergey Over a year ago

And if you need to play with your project, sbt console is more suited to the job than sbt run

Zoltán Kollár · Accepted Answer · 2016-05-26 12:22:48Z

0

According to there is build.sbt file on the root of the project you should use sbt to run the program. For this simply use the following command from the project root directory:

sbt run

The command will compile the project properly and execute the Main.scala.

answered May 26, 2016 at 12:22

Zoltán Kollár

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