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From "Antoine Levy-Lambert" <>
Subject Re: optional.jar - why doesn't ant find it in ANT_HOME\lib?
Date Wed, 30 Jul 2003 15:41:51 GMT
can you check whether your copy of optional.jar contains the class
May be you are using a non-official build which was done in the absence of
and does not contain the FTP class.

----- Original Message -----
From: "Wendi Sisson" <>
To: <>
Sent: Wednesday, July 30, 2003 5:35 PM
Subject: optional.jar - why doesn't ant find it in ANT_HOME\lib?

> I am attempting to use the optional ftp task with ant 1.5 in Windows
> 2000 Professional. I run ant from the command-line, and I get this
> standard error (below). I have read the ant FAQ as well as done a Google
> search on this issue. I have the feeling the answer is obvious, but I'm
> momentarily at a dead-end, and would appreciate any suggestions of what
> to try next.
> "D:\opt\TradeOne\build.xml:110: Could not create task of type: ftp.
> Common solutions are to use taskdef to declare your task, or, if this is
> an optional task, to put the optional.jar in the lib directory of your
> ant installation (ANT_HOME)."
> This error leads me to believe ant cannot find the optional.jar.
> However, I believe I am explicitly following the instructions in the
> "Installing Ant" and "Library Dependencies" sections of the Ant manual.
> I have both the optional.jar and the NetComponents.jar in
> D:\opt\ant\lib. I have an environment variable ANT_HOME (D:\opt\ant),
> and I have added D:\opt\ant\bin to my PATH.
> I don't think I should have to add anything to my CLASSPATH because the
> Ant manual states that optional external libraries "may either be placed
> in Ant's lib directory, where they will be picked up automatically, or
> made available on the system CLASSPATH environment variable." However,
> to be safe I have also added
> "D:\opt\ant\lib\optional.jar;D:\opt\ant\lib\NetComponents.jar" to my
> Can anyone provide a pointer about what else I might check? I appreciate
> your help. Wendi
> --
> Wendi Sisson
> Systems Programmer
> International Trade Development
> FedEx Services
> (901) 263-6695
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