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Helios configuration problem [message #653178]

Tue, 08 February 2011 13:32

Eclipse User

I've been using Eclipse 3.5 and downloaded 3.6 yesterday (Ubuntu). I unzipped to one of my folders and made a copy of one of my workspaces to test it. One of my apps compiles without warnings but fails at runtime with an error:

Exception in thread "main" java.lang.UnsatisfiedLinkError: no PvJNI in java.library.path

I I think I've gone through all the preference menus and compared them to 3.5 to no avail.

How do I correct this? It's my intention to uninstall 3.5 if 3.6 works with my code.

Re: Helios configuration problem [message #653215 is a reply to message #653178]

Tue, 08 February 2011 16:14

Eclipse User

On 2/8/11 1:32 PM, Robert Lockwood wrote:
> I've been using Eclipse 3.5 and downloaded 3.6 yesterday (Ubuntu). I
> unzipped to one of my folders and made a copy of one of my workspaces to
> test it. One of my apps compiles without warnings but fails at runtime
> with an error:
>
> Exception in thread "main" java.lang.UnsatisfiedLinkError: no PvJNI in
> java.library.path
>
> I I think I've gone through all the preference menus and compared them
> to 3.5 to no avail.
>
> How do I correct this? It's my intention to uninstall 3.5 if 3.6 works
> with my code.
>
>

First thing: workspaces are not intended to be copied and/or moved
around. Doing so almost always leads to problems.

Second: what is PvJNI? Is your project using JNI to call into native
code? If so, you'll have to edit the launch configuration for the
project to add the location of PvJNI to the runtime java.library.path.

Eric

Re: Helios configuration problem [message #653232 is a reply to message #653215]

Tue, 08 February 2011 17:04

Eclipse User

Thanks, Eric, I think I would like to "upgrade" from 3.5, which is properly installed as an application on the machine, to 3.6 - how do I properly do that?

I really like Eclipse, it's helping me to learn Java and some Swing and to make progress on my larger work projects. I've been using Borland for years.

Nate

Re: Helios configuration problem [message #653251 is a reply to message #653232]

Tue, 08 February 2011 21:28

Eclipse User

On 2011.02.08 15:04, Robert Lockwood wrote:
> Thanks, Eric, I think I would like to "upgrade" from 3.5, which is
> properly installed as an application on the machine, to 3.6 - how do I
> properly do that?
>
> I really like Eclipse, it's helping me to learn Java and some Swing and
> to make progress on my larger work projects. I've been using Borland for
> years.
> Nate

You install Helios just as you did Galileo. Once you've installed it,
launch it and open your original workspace. It will likely work. The
only thing that might keep it from working would be having failed to
install in Helios any important plug-ins you had in Galileo.

Do this first, then if you've got something special like a JNI, come
back and let's talk about that separately.

Re: Helios configuration problem [message #653404 is a reply to message #653251]

Wed, 09 February 2011 11:33

Eclipse User

Thanks.

IIRC I installed 3.5 from Ubuntu using Ubuntu Software Center. When I access Ubuntu Software Center there is only the option of "Remove". The page that describes Eclipse refers to 3.5 but I don't know if that is a reference to what is installed or what is available.

Should I remove 3.5 and then install 3.6? Is apt-get available?

I don't want Indigo as I really need CDT and want Window Builder neither of which appear to be available for Indigo yet.

Re: Helios configuration problem [message #653428 is a reply to message #653404]

Wed, 09 February 2011 12:29

Eclipse User

On 2/9/11 11:33 AM, Robert Lockwood wrote:
> Thanks.
>
> IIRC I installed 3.5 from Ubuntu using Ubuntu Software Center. When I
> access Ubuntu Software Center there is only the option of "Remove". The
> page that describes Eclipse refers to 3.5 but I don't know if that is a
> reference to what is installed or what is available.
> Should I remove 3.5 and then install 3.6? Is apt-get available?
>
> I don't want Indigo as I really need CDT and want Window Builder neither
> of which appear to be available for Indigo yet.

I strongly recommend against installing Eclipse from any of the Linux
distro package managers. Instead, go right to the source,
www.eclipse.org/downloads and get the package you want. Just make sure
you have the Sun/Oracle JDK installed and configure Eclipse to use it
(see http://wiki.eclipse.org/Eclipse.ini )

Eric

Re: Helios configuration problem [message #653445 is a reply to message #653428]

Wed, 09 February 2011 14:19

Eclipse User

So I would just unzip and put the Eclipse folder where convenient, say in my Development folder, and proceed as outlined in the wiki?

Thanks

Re: Helios configuration problem [message #653488 is a reply to message #653445]

Wed, 09 February 2011 17:05

Eclipse User

On 2/9/11 2:19 PM, Robert Lockwood wrote:
> So I would just unzip and put the Eclipse folder where convenient, say
> in my Development folder, and proceed as outlined in the wiki?

Yep; Eclipse installation is a breeze that way.

Re: Helios configuration problem [message #653507 is a reply to message #653488]

Wed, 09 February 2011 21:21

Eclipse User

Thanks, it was a breeze that way - I had no idea. Got C and I think I have Window Builder installed (I don't know how to start it) and test ran two apps! Very Happy

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