Subject:
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Re: lejos help please
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Newsgroups:
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lugnet.robotics.rcx.java
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Date:
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Sat, 8 Jul 2006 00:40:03 GMT
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Viewed:
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10535 times
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In lugnet.robotics.rcx.java, Muhammad Arif Abdul Rahman wrote:
> I tried to follow the tutorial as close as I can, but I might have made some
> mistakes. I did set up the classpath, but I guess there are some mistakes there.
> Is there any way I can check what is in the classpath? Or shall I just redo the
> setup?
Well, now that I look over the instructions on leJOS, I see that they don't say
to set classpath. I think I always have, however. I haven't installed it on my
newish laptop, though, so I can't check.
Does someone with more experience want to field this one?
I guess there's no harm in trying to add it. Just to see if this works, you
could type it into the command line before trying to compile. It goes something
like
SET CLASSPATH=%CLASSPATH%;.;c:\lejos\classes\
and then try running lejosc to compile your program. See notes below for what
it's doing, but make sure that c:\lejos\classes\ points to the classes folder
installed as part of lejos. If you put it someplace other than c:\lejos, you'll
need to modify this.
If it works, once you close the command prompt window, you'll need to do it
again in the next one. I keep a batch file of these things, so I can set
several things at once without having to remember them.
If this works and you want to set it for your system, depending on your version
of Windows:
*Go to Control Panel
*Choose System
*Click the Advanced tab
*Click the Environment Variables tab
*Look for CLASSPATH--the Java installation probably added one. If so, you can
click the EDIT button and change it; if not, you can click the NEW button and
add an environment variable named CLASSPATH.
*If you already have a classpath, add ;.;C:\lejos\classes\
The first semicolon is to separate . from the preceding entry; . is the
directory you're in when you compile [if it's already in there, you don't need
to re-add it], and c:\lejos\classes\ is the path to the classes folder installed
with leJOS--modify as necessary to reflect your setup. You should already have
the path for the Java install in your classpath--if you don't, I think you would
have gotten more errors than you actually did.
Let me know if this works.
Peter
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Message is in Reply To:
 | | Re: lejos help please
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| (...) Hi Peter, I tried to follow the tutorial as close as I can, but I might have made some mistakes. I did set up the classpath, but I guess there are some mistakes there. Is there any way I can check what is in the classpath? Or shall I just redo (...) (18 years ago, 6-Jul-06, to lugnet.robotics.rcx.java)
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