I was developing a plugin, using Eclipse IDE for java developers (Version: 2021-09 (4.21.0)
Build id: 20210910-1417)
During development, when I run it as an eclipse application, it opens a runtime-Eclipse application where the plug-in is present. In my setup this new runtime-eclips app opened from a folder next to the workspace, where C codes were present. (and my progrem would get the tests run in C , and get the results from it's exe)
Then I downloaded the Eclipse IDE for committers, which is a newer version. I downloaded it as a zip and after unpacking I run the eclipse.exe. My program had problems opening the runtime-Eclipse application in C there, so i went back to the older one which is installed on my computer.
After opening the original eclipse, on which I was working and had no problems, I was hoping everything will be fine. It opens the IDE for java developers (same version, same build) but I have the same problems with the runtime-eclipse application as the one I run as an eclipse.exe , (not recognising the C code?? I don't understand).
When i try to run the plug-in I get this error.
And when the runtime-app opens i get this error.
I cannot create C projects anymore on the runtime-app. I don't know the reason behind this.
Also I have billion of these
["java.net.UnknownHostException: downdload.eclipse.ort"]
[" org.eclipse.equinox.p2.core.ProvisionException: Unknown Host: http://downdload.eclipse.ort/eclipse/updates/4.2/content.xml "]
Thank you in advance!
I don't know if it is possible or not, since seemingly it did not update the older eclipse IDE. If it can be restored the way it was before i run the eclipse.exe, I would be happy.
eclipse.ort is obviously a typo, it should be eclipse.org, I don't know where it is coming from - but its possible you enter it yourself as update site
the runtime error means eclipse cannot resolve all dependencies, which means it could not load bunch of plugins including yours, you need to figure out why on your own, its not possible to debug this remotely, its best to start from the scratch in the new workspace
The solution was easier than expected. The run configuration was modified by the other eclipse version. It was not launched with every plugin. only a selected handful
Related
Install Netbeans 12.6 on a Windows 10 machine. I was able to install the CodenameOne plugin with no problem. When creating a project I get the following error message:
Cannot invoke "org.openide.filesystems.FileObject.getFileObject(String)" because "folder" is null
I've been surfing the internet and can't find a way to fix it.
Thank you for your support.
This approach is no longer supported. The plugin is only used for legacy applications and no longer works in newer IDEs due to breaking changes in almost all IDEs.
Starting with Codename One 7.x we moved to maven projects which don't require the plugin and can be created in https://start.codenameone.com/
I have followed the instructions in the manual and it mentions as important:
"Before opening the project in NetBeans, you need to copy the contents of the tools/netbeans directory into the root project directory. These files are required by NetBeans to build, run, and debug the project correctly. "
But I can't find this folder in netbeans version 12.6.
I have just reinstalled my OS and made a clean install of Eclipse.
I want to import my previous projects made on a previous version of Eclipse and that is no problem. However when I try to run it then it says: "The selection cannot be run on any server".
I read around I need to go into Properties => Build Path and do something there.
Only problem is my Properties menu does not have a Build Path option. I have searched around Eclipse for a long time now to find Build Path but stil no luck.
Does anyone now where og why my Build Path is no where to be found?
By Chance i found the solution myself.
I originally installed the Eclipse Php Mars version of Eclipse which i still can't get to work. But install the Eclipse Jee Mars (Java EE IDE) version instead solves the problem.
First time you run the code though you might have to run it through the main menu in the top and not by the convenient Run icon botton.
I have no clue why this is but now i can continue my work.
I have an eclipse plugin which runs fine in the eclipse version i'm using for developing it. It basicly also runs fine if i export it and install it in a fresh keppler version.
My plugin contains a New Project wizard to create projects which can be used with the plugin.
Now if i used this wizard in my development eclipse if i click finish, everything runs fine the project is created and the dialog is closed.
If i do the same in the fresh keppler installation, the project will also be created and everthing seems to be correct but the dialog won't close until i hit cancel.
Now i really wanted to come up with more information but in the development environment there is no exception occuring.
Also when i start the fresh keppler one with the -debug option i won't get an exception if i hit finish().
Any ideas what could cause this problem or how i could get more information on this?
It is always worth looking in the .log file in the workspace .metadata directory when something unexplained happens to see if something has been logged.
In fact it is worth checking the log once in a while during plug-in development just in case something has been logged.
i'm running into following errors everytime i start eclipse. If i move my project to a new workspace, everything works fine for the duration of one session - as soon as i open eclipse for the next time, the same thing is popping up again.
I tried various suggestions i found in other posts (closing/reopening project, validation, cleaning,etc.) without success. Here is my stacktrace from the last session (its too long to post it directly in here:))
The main symptom is that Tomcat doesnt start - it is stuck at 7%.
Thank you guys in advance, your help is highly appreciated!! If you need anything else, just leave me a comment and i i'll post it!
Your Eclipse environment is seriously messed up. Perhaps you installed plugins the wrong way or you used the wrong Eclipse or plugin version.
Trash everything. Delete the Eclipse program folder altogether. You can keep your workspace folder, but you should delete its .metadata folder. Now download a fresh copy of Eclipse for Java EE (note, with the EE!), extract it and then integrate Tomcat again the usual way by the Servers view. Note that you don't need any additional plugins for this step.
JBoss Tools should be installed via Help > Install New Software. You should specify the JBoss Tools update site matching the exact Eclipse version. Currently it's Indigo SR2, so you should specify http://download.jboss.org/jbosstools/updates/indigo/SR2/ as URL.
I do C++ embedded development for the NetBurner platform. They have plug-ins that customize Eclipse and in addition to a build tool-chain they add a Launch Group under the Run Configuration area. Everything was working fine under Indigo (32 bit) when I decided to install Subclipse (big mistake). As soon as the install finished I could no longer run my existing configurations successfully. When I went into the Run Configurations area I noticed the Launch Group I used to use was missing. Here is what it looked like earlier yesterday:
Here's what it looks like today:
Things I've tried
First I uninstalled the Subclipse plugins using the
Help->About->Installation Details and then selecting them one at a
time, Uninstalling and restarting after each uninstall. No change.
Then I unpacked the original Eclipse Indigo/CDT 32 bit download to a
fresh folder. Copied over the NetBurner plugins from the zip I got
from the manufacturer. No change.
Launched with different Workspaces, no change.
Launched a Galileo version, it uses older plug-ins, and it still
works.
Copied older plug-ins into Indigo, the older NetBurner launcher
shows up (but it doesn't really work with Indigo)
Removed the older plug-ins put in the newer ones, old NetBurner
launcher went away new launcher does not show up.
Tried removing the
{Workspace}.metadata.plugins\org.eclipse.debug.core.launches - no
change.
Interestingly even though launches has many .launch files that should show up under Run Configuration, nothing shows up.
One other strange (possibly relevant) thing is that icon for the NetBurner Perspective went away, now it just has <NetBurner> as the text and a generic perspective icon.
I can still cross-compile and build for the NetBurner (i.e. the build toolchain still works), it's just the ability to use run configurations that seems to be missing.
I'm out of ideas, does anyone know of some global setting that sits outside the workspace and outside the Indigo installation folder that could be causing this?
I'm running on Win 7 64 bit ultimate, I run the 32 bit version of Indigo because the 64 bit doesn't appear to work with the NetBurner plug-ins. I've also disabled the two Mylyn tasks under General->Startup and Shutdown (they seemed to cause many Permgen memory crashes). This is the same setup I had working flawlessly yesterday.
Update
I also noticed that only 3 of the 4plug-ins are showing up in the Installation Details plug-in pane. The nbeclipse.core_2.6.0.jar is in the eclipse plugin directory but not showing as loaded. So I guess I know now the problem is the plug-in isn't loading but I don't know why or how to get it to load, or what subclipse could have changed that would cause this.
I suspect that the Subclipse installation may have caused an update to some other plugin(s) that it depended on (keep in mind the transitive nature plugin dependency resolution; if you're installing plugin A and it requires a certain version of Plugin B that you don't have, Plugin B will be installed or updated to that version). In doing so, maybe the NetBurner plugin can no longer load because its declared dependencies are no longer met (ie, it depended on an earlier version and does not tolerate a later version).
You can use the OSGi Console to help determine why a plugin is not loading. Here are a couple of references that should help:
http://grep.elasticpath.com/community/techblog/blog/2010/05/27/eclipse-plugins-and-the-osgi-console
http://www.vogella.com/articles/OSGi/article.html#osgiconsole
By the way, you can not just copy plugins into an Eclipse installation and expect them to work. For several versions now, Eclipse has not supported that ability. You must use Help > Install New Software or File > Import > Install > From Existing Installation to install plugins. Ask the vendor if they have an update site to install from; like I said above, simply dropping things into Eclipse's plugins folder is not supported any more, it won't work. Other than the vendor providing an update site, the only other option is to use the dropins folder, as described here.