flink-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Stephan Ewen <se...@apache.org>
Subject Re: "main" java.lang.NoClassDefFoundError: scala/collection/Traversable
Date Tue, 18 Aug 2015 15:03:24 GMT
Hi!

This looks like your IDE setup is not quite correct. The Scala library is
probably not in the classpath when you launch the program.

Please check if you correctly installed your Scala Plugin, of the Scala Lib
has been added to the build path in the project properties, ...

Greetings,
Stephan


On Mon, Aug 17, 2015 at 9:39 PM, Nyamath Ulla Khan <ullakhan@gmail.com>
wrote:

> Hi All,
>  I have just started learning Apache Flink and found the guide link to
> start the development in  EClipse IDE.
>
>
> https://ci.apache.org/projects/flink/flink-docs-master/quickstart/java_api_quickstart.html
>
> When I RUN the WordCount.java file as Application it is throwing the below
> though i have scala-library 2.10.4 which contains the
> scala.collection,Traversable class in it.
>
> 00:20:26,993 INFO  org.apache.flink.api.java.ExecutionEnvironment
>      - The job has 0 registered types and 0 default Kryo serializers
> Exception in thread "main" java.lang.NoClassDefFoundError:
> scala/collection/Traversable
> at java.lang.ClassLoader.defineClass1(Native Method)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
> at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
> at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
> at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
>
> at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
> at java.security.AccessController.doPrivileged(Native Method)
>
> I'm not sure what I am missing over here.
>
> Please help out  to overcome from this issue.
>
> --
> Thanks and Regards
> Nyamath Ulla Khan
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message