Accounts - Error javalangnoclassdeffounderror, How to install apache ant

Error javalangnoclassdeffounderror

error java.lang.NoClassDefFoundError
If you have a tomcat application server and if you are facing java.lang.NoClassDefFoundError: org/apache/tools/ant/BuildException error while running jsp or servlet then do the following steps :

How to install apache ant

1) Download apache-ant-1.7.1-bin.tar.gz
2) Extarct the tar.gz file by using the command

 # tar-xzvf apache-ant-1.7.1-bin.tar.gz

 #  cd apache-ant-1.7.1/lib

3) copy all ant related jar file to your tomcat's lib directory by using the following appropriate command:

For tomcat 5.X :

 # cp ant*.jar /usr/local/tomcat5/common/lib 

this is for tomcat5.X which is installed under /usr/local/ . If tomcat is installed in a NGASI environmant then you can use the command cp ant*.jar /home//appservers/apache-tomcat5.X/common/lib

For tomcat 6.X :

 # cp ant*.jar /usr/local/tomcat6/common/lib

this is for tomcat5 which is installed under /usr/local/ . If tomcat6 is installed in a NGASI environmant then you can use the command cp ant*.jar /home//apache-tomcat6.X/lib

By installing the apache ant you can get rid of the error java.lang.NoClassDefFoundError

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