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From "Barry Kimelman" <>
Subject Newbie with problems during tomcat application "install"
Date Mon, 29 Dec 2003 22:48:50 GMT
 My system is a laptop running Linux Redhat 9.
I have installed Tomcat 5.0.14 from a binary download distribution.

The sample applications work perfectly.

I can compile my application with no problems.

But when I issue the ant command "ant install" I receive the following
output :


Buildfile: build.xml




/home/bkimelman/tomcat1/build.xml:365: Could not create task or type of 
type: deploy.

Ant could not find the task or a class this task relies upon.

This is common and has a number of causes; the usual
solutions are to read the manual pages then download and
install needed JAR files, or fix the build file:
- You have misspelt 'deploy'.
   Fix: check your spelling.
- The task needs an external JAR file to execute
   and this is not found at the right place in the classpath.
   Fix: check the documentation for dependencies.
   Fix: declare the task.
- The task is an Ant optional task and optional.jar is absent
   Fix: look for optional.jar in ANT_HOME/lib, download if needed
- The task was not built into optional.jar as dependent
   libraries were not found at build time.
   Fix: look in the JAR to verify, then rebuild with the needed
   libraries, or download a release version from
- The build file was written for a later version of Ant
   Fix: upgrade to at least the latest release version of Ant
- The task is not an Ant core or optional task
   and needs to be declared using <taskdef>.

Remember that for JAR files to be visible to Ant tasks implemented
in ANT_HOME/lib, the files must be in the same directory or on the

Please neither file bug reports on this problem, nor email the
Ant mailing lists, until all of these causes have been explored,
as this is not an Ant bug.

Total time: 13 seconds


I followed all the "instructions" in the sample build.xml" file with respect
to copying files into the appropriate locations.

I then reran the ant command with the debugging option "ant -d install"

According to the debugging output from ant, the "compilation classpath" does
indeed contain a reference to the JAR file which contains the DeployTask
class file.


Here is the relevant portion from my build.xml file. I created this file by
copying the sample build.xml file and making the appropriate changes.

340 <!-- ==================== Install Target
================================== -->
342 <!--
344   The "install" target tells the specified Tomcat 5 installation to
345   install this web application and make it available for execution.  It
346   *not* cause the existence of this web application to be remembered
347   Tomcat restarts; if you restart the server, you will need to
re-install all
348   this web application.
350   If you have already installed this application, and simply want Tomcat
351   recognize that you have updated Java classes (or the web.xml file),
use the
352   "reload" target instead.
354   NOTE:  This target will only succeed if it is run from the same server
355   Tomcat is running on.
357   NOTE:  This is the logical opposite of the "remove" target.
359 -->
361   <target name="install" depends="compile"
362    description="Install application to servlet container">
364     <deploy url="${manager.url}"
365        username="${manager.username}"
366        password="${manager.password}"
367            path="${app.path}"
368             war="file://${build.home}"/>
370   </target>


Any ideas as to where I should look for the problem ??
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