Comments below...
-----Original Message-----
From: Eric Wulff [mailto:[EMAIL PROTECTED]
Sent: Tuesday, October 26, 2004 3:25 PM
To: [EMAIL PROTECTED]
Subject: not just install, but upgrade/remove Ant
Straight To The Point...
1. I found info stating that older versions interfere with newer
versions of Ant but I found NO instructions on how to upgrade or
remove versions. I only found information on how to install Ant as if
the system was already clean. Can anyone advise me or point me to
advice on upgrading and removing Ant? I'd like to start clean with
the latest version.
To upgrade Ant you just need to unzip or untar the new version and change ANT_HOME. I
usually create a symlink and point ANT_HOME to that.
symlink /usr/local/ant -> /usr/local/apache-ant-1.5.3
ANT_HOME=/usr/local/ant
PATH=$PATH:$ANT_HOME/bin
Then when I upgrade Ant, I just change the symlink...
symlink /usr/local/ant -> /usr/local/apache-ant-1.6.2
Of course, you could also change ANT_HOME. I find it easier to use a symlink because
then other users do not have to change their environment variable ANT_HOME when a new
version is installed.
thx
Eric
I get many errors related to Ant being unable to load fundamental
class files. They look like this...
Could not load class
(org.apache.tools.ant.taskdefs.optional.javacc.JJTree) for task jjtree
Could be a conflict. I'm not familiar with this task, but perhaps there are
dependencies that have not been met.
- History and other questions which may help -
I recently installed Fedora Core 2 and I am having trouble running
Ant. I tried installing the latest ant, 1.6.2, before realizing I had
1.5.2 which must have been installed with FC2. When I was having
trouble, I reviewed some trouble shooting and FAQ. Due to suggestions
that older versions may interfere with new, I removed the newer
version(the newer one because this was easier since I knew exactly
where I put everything... I think). Anyway, still can't get it to
run and I'm not sure how to check if ANT_HOME and PATH are even
correct because there is no ant/bin in the 1.5.2 version as I'm used
to. Best I can tell is that ant.jar is in ant/lib instead of ant/bin.
If FC2 installed Ant, there should be an rpm that you can uninstall. Run "rpm -qa | grep -i
ant" to find the rpm to uninstall.
2. Is ANT_HOME then ant/lib if that's where ant.jar is located?
No, ANT_HOME is the parent directory of the lib directory that contains ant.jar. When
you run ant, you are actually calling a script that builds the classpath and launches
java.
Also, I noticed an ant.jar as well as ant-1.5.2.jar in...
/usr/share/java/
3. Could that be a problem?
Yes.
Perhaps 2 ant versions in one directory?
Perhaps.
and ant.jar is also located in the following directories...
/usr/share/ant/lib
/usr/local/jakarta.../common/lib/
4. Possible conflict?
I would remove it from all locations and start from scratch. Check all the paths in
your classpath for possible conflicts.
-Rob Anderson
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