NoClassDefFoundError: org/apache/tomcat/util/codec/binary/Base64

Hi

i have a problem with ant build xml file in eclipse while running tomcat tasks remaining tasks works fine. i am getting this ERROR: NoClassDefFoundError: org/apache/tomcat/util/codec/binary/Base64

ERROR: C:\development\workspace\lumstat\build.xml:153: java.lang.NoClassDefFoundError: org/apache/tomcat/util/codec/binary/Base64

i have checked tomcat-util.jar files toc hck if i am missing any jar files. I can see everythign looks ok.

I am using apache tomcat version 8
eclipse : Eclipse Java EE IDE for Web Developers.
Version: Mars.1 Release (4.5.1)

i tried different methods to overcome this issue. But not able to fix it.
Can someone please help me with this issue !

Welcome to the JavaRanch, Chowdary!

I'm uncomfortable with your Windows pathnames ("C:\development\ ..."). Backslashes can often bite. I prefer the safer form: "C:/development/...".

As I read it, the Ant script is deploying a WAR into a running Tomcat when it fails. You didn't provide much context for the exception, however. If the webapp itself is attempting the use class org.apache.tomcat.util.codec.binary.Base64, then it's probably right to fail. Webapps should not attempt to directly employ Tomcat's internal classes.

If Tomcat is failing, then the stacktrace and related information from the Tomcat catalina.out console log would be useful.