Scala IDE Issues

1. Error : Cross compiled with an incompatible version of scala (2.10.0) while building scala-application.
  Solution : If you are installed new version of scala and that is compiled. But ScalaIDE will provide built-in Scala 2.10.0 version. Over here you are able to see 2 Scala versions.
  Go to the Project Build Path -> Libraries -> select the Scala Library (currently scala 2.11.7 in my eclipse) -> Edit
       You can see the 4 types of Scala Library Containers
               - Latest 2.11 bundle (dynamic)
               - Latest 2.10 bundle (dynamic)
               - Fixed Scala Library container ( 2.11.7)
               - Fixed Scala Library container (2.10.6)

2. After buildig the project , Java Library automatically changed to the 1.6 version even if we changed to 1.8
    Solution: In pom.xml we had the below properties while creating maven-scala project
    <maven.compiler.source>1.6</maven.compiler.source>
    <maven.compiler.target>1.6</maven.compiler.target>
   The above paremeters are pointing to 1.6 means after build the project, The project preferences change to Java1.6
To fix the above problem you can always change the version number.
For example: If we want to point the project to Java 1.8
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>

3. Error: Could not find or load main class com.test.scala.CountWord
   Solution: By default Scala Compiler points to 1.6JVM. If you change the Scala compiler jvm1.6 to jvm1.8 then you will get the error as "Could not find or load main class Error".
        Project -> right click -> Build Path -> Scala Compiler change to jvm1.6 by default one then problem solves.