Cannot access application in play framework

Question

Hi I installed the new version of the play framework 2.0. Now I am trying to connect to the sample application from the tutorial but something seems not to be working. Here is what i did:

Create the "todolist" application:

play new todolist

play! 2.0, http://www.playframework.org

The new application will be created in /home/evermean/Code/playWorkspace/todolist

What is the application name?

>todolist

Which template do you want to use for this new application?

1 - Create a simple Scala application
2 - Create a simple Java application
3 - Create an empty project

> 2

OK, application todolist is created. Have fun!

Execute play command:

$ cd todolist
$ play

Getting org.scala-tools.sbt sbt_2.9.1 0.11.2 ...
:: retrieving :: org.scala-tools.sbt#boot-app
confs: [default]
37 artifacts copied, 0 already retrieved (7324kB/127ms) [info] Loading project definition from /home/evermean/Code/playWorkspace/todolist/project
[info] Set current project to todolist (in build file:/home/evermean/Code/playWorkspace/todolist/)

play! 2.0, http://www.playframework.org

> Type "help play" or "license" for more information. > Type "exit" or use Ctrl+D to leave this console.

Execute the run command:

[todolist] $ run

[info] Updating {file:/home/evermean/Code/playWorkspace/todolist/}todolist... [info] Done updating.
--- (Running the application from SBT, auto-reloading is enabled) ---

[info] play - Listening for HTTP on port 9000...

(Server started, use Ctrl+D to stop and go back to the console...)

Now I try to connect to the site http://localhost:9000

I get the following output:

[info] Compiling 4 Scala sources and 2 Java sources to /home/evermean/Code/playWorkspace/todolist/target/scala-2.9.1/classes...

[warn] Problem processing dependencies of source /home/evermean/Code/playWorkspace/todolist/app/controllers/Application.java : java.lang.UnsupportedClassVersionError: controllers/Application : Unsupported major.minor version 51.0

[warn] Error reading API from class file : java.lang.UnsupportedClassVersionError: controllers/Application : Unsupported major.minor version 51.0

[warn] Problem processing dependencies of source /home/evermean/Code/playWorkspace/todolist/target/scala-2.9.1/src_managed/main/controllers/routes.java : java.lang.UnsupportedClassVersionError: controllers/routes : Unsupported major.minor version 51.0

[warn] Problem processing dependencies of source /home/evermean/Code/playWorkspace/todolist/target/scala-2.9.1/src_managed/main/controllers/routes.java : java.lang.UnsupportedClassVersionError: controllers/routes$ref : Unsupported major.minor version 51.0

[warn] Problem processing dependencies of source /home/evermean/Code/playWorkspace/todolist/target/scala-2.9.1/src_managed/main/controllers/routes.java : java.lang.UnsupportedClassVersionError: controllers/routes$javascript : Unsupported major.minor version 51.0

[warn] Problem processing dependencies of source /home/evermean/Code/playWorkspace/todolist/target/scala-2.9.1/src_managed/main/controllers/routes.java : java.lang.UnsupportedClassVersionError: controllers/routes : Unsupported major.minor version 51.0

[warn] Problem processing dependencies of source /home/evermean/Code/playWorkspace/todolist/target/scala-2.9.1/src_managed/main/controllers/routes.java : java.lang.UnsupportedClassVersionError: controllers/routes$ref : Unsupported major.minor version 51.0

[warn] Problem processing dependencies of source /home/evermean/Code/playWorkspace/todolist/target/scala-2.9.1/src_managed/main/controllers/routes.java : java.lang.UnsupportedClassVersionError: controllers/routes : Unsupported major.minor version 51.0

[warn] Problem processing dependencies of source /home/evermean/Code/playWorkspace/todolist/target/scala-2.9.1/src_managed/main/controllers/routes.java : java.lang.UnsupportedClassVersionError: controllers/routes$javascript : Unsupported major.minor version 51.0

[warn] Error reading API from class file : java.lang.UnsupportedClassVersionError: controllers/routes : Unsupported major.minor version 51.0

[warn] Error reading API from class file : java.lang.UnsupportedClassVersionError: controllers/routes$ref : Unsupported major.minor version 51.0 [warn] Error reading API from class file : java.lang.UnsupportedClassVersionError: controllers/routes$javascript : Unsupported major.minor version 51.0

[info] play - Application started (Dev)

I really do not know what to make of that, perhaps someone has an idea on this one. I guess I'm doing something wrong but cannot see where my mistake lies. I hope some can help.

Thanks...

Answer 1

It looks as though the JDK you are using is too old. What version of Java are you using?