When i tried to instail this plugin
http://fornwall.net/eclipsecoder/ to compete in Arena at TopCoder
I found this problem.
http://i.stack.imgur.com/VvcRh.png
So how can i solve this problem?
You get this error when p2 can't find the update site to install. Looks like the url that youa re using is correct, so the problem is one of two things:
Temporary network issues. Try again and it might work
A firewall on your side. If so, set your network proxies at Preferences -> General -> Network connections
As a side note, the update site is an old style update site (ie- pre-3.4 and does have proper metadata). You should encourage the maintainers of this plugin to update to a modern update site.
I don't have any problems installing the plugin. May be the location you have specified when adding the repository was wrong. The location specified in the site of EclipseCoder and that I use is: http://fornwall.net/eclipsecoder/
I think that you have invalid update site URLs in the available update site list (Window > Install/Update > Available Software site).
Remove or disable the update site causing problem and retry adding the proper update site URL you want to access: http://fornwall.net/eclipsecoder/
When i tried to instail this plugin
http://fornwall.net/eclipsecoder/ to compete in Arena at TopCoder
I found this problem.
http://i.stack.imgur.com/VvcRh.png
So how can i solve this problem?
You get this error when p2 can't find the update site to install. Looks like the url that youa re using is correct, so the problem is one of two things:
Temporary network issues. Try again and it might work
A firewall on your side. If so, set your network proxies at Preferences -> General -> Network connections
As a side note, the update site is an old style update site (ie- pre-3.4 and does have proper metadata). You should encourage the maintainers of this plugin to update to a modern update site.
I don't have any problems installing the plugin. May be the location you have specified when adding the repository was wrong. The location specified in the site of EclipseCoder and that I use is: http://fornwall.net/eclipsecoder/
I think that you have invalid update site URLs in the available update site list (Window > Install/Update > Available Software site).
Remove or disable the update site causing problem and retry adding the proper update site URL you want to access: http://fornwall.net/eclipsecoder/
I'm producing plugin's for eclipse - but for some reason when I build a new version of the plugin - the update site isn't noticing it.
The build process says that the plugins should be at version 1.1.0.201209191506, but when I access to install I'm shown these versions:
The XML file looks like this:
<?xml version="1.0" encoding="UTF-8"?>
<site>
<feature url="features/supportStructuresForCSFEditing -_1.1.0.201209191506.jar" id="supportStructuresForCSFEditing -" version="1.1.0.201209191506">
<category name="plancomps"/>
</feature>
<feature url="features/supportStructuresForCSFEditingTest -_1.1.0.201209191506.jar" id="supportStructuresForCSFEditingTest -" version="1.1.0.201209191506">
<category name="plancomps"/>
</feature>
<category-def name="plancomps" label="plancomps"/>
</site>
and this happens if I'm installing from local or from the web - any idea what might be happening? Or diagnostic tricks I could try?
EDIT - there have been restarts of the machine - and attempts from machines that have never seen the plugin's before - all have shown the old versions. :(
I'd check two things.
1) I think that due to a bug, sometimes features are removed from category (if you use GUI to update your site). So you might be looking at your plug-ins in your category, when latest version is at top level or vice-versa.
2) Eclipse caches current state of update site. So you need to restart, to make it show newer versions.
Most likely, your cache is not being updated. p2 will often cache update site content information. It looks like you are using old style update sites and that you do not have a content.xml(or .jar) and a artifact.xml(or .jar), which is not really supported any more and may make it harder to delete the cache.
Here are somethings you can try:
Help -> Install new software -> Available software sites -> (Select your update site) -> Reload
Delete and re-add your update site
Restart eclipse with the -clean option to clear out the configuration area
But, really you should be making sure that you are creating artifact.xml and content.xml (or .jar) and creating proper update sites.
Okay, so coming back to this I have a reason and a workaround.
Eclipse's caching is pretty aggressive. But something I was doing wasn't helping and I thought I'd share.
When I was building a new version of the plugin, I was deleting the previous one (which made sense to me, generally the previous one was an internal buggy thing and I could have always reconstructed it from the svn). However when I started leaving the previous versions in, the update site started working much more as expected.
I imagine the issue is already solved for the OP, but I thought I'd share:
I just spent 2+ hours fighting with a very similar problem and finally managed to solve it. I'm not sure whether my solution can be applied to this case. My case was like this:
I created some plugins and uploaded them to a software site I had also created.
In a default.target file I added the plugins from that software site.
I realized there was an error in one of the plugins, created it again, uploaded it to the software site, and clicked "Update" for that site in my default.target.
The plugin never got reloaded. Even when I deleted the update site, eclipse "magically" still saw it and pretended to update from there when I clicked update. Fun fun fun.
I tried all kinds of things and this is the only one that worked for me in the end (I'm going to assume that you have a default.target as well):
Remove the plugins that aren't being updated from your default.target.
Exit eclipse (at least the instance for the problematic workspace).
Backup your workspace, or at least default.target and <pathToYourWorkspace>\.metadata\.plugins\org.eclipse.pde.core\.bundle_pool\. It may be difficult to revert the following changes if you need to.
In <pathToYourWorkspace>\.metadata\.plugins\org.eclipse.pde.core\.bundle_pool\:
Open artifacts.xml and delete all references to the plugins that aren't being updated. Note that there may be multiple references to each plugin; for example in my case I have one with 'classifier='org.eclipse.update.feature' and one with classifier='osgi.bundle' (I'm using OSGi).
Open subdir features and delete the folders corresponding to the plugins that aren't being updated. (Sorting by date may help. Btw, in my case the "date modified" for those jars showed that they had only been downloaded the first time and never updated again)
Open subdir plugins and delete the jars corresponding to the plugins that aren't being updated. (Sorting by date may help. Ditto)
Open eclipse again, with the options -clean and -data <pathToYourWorkspace> so that it cleans the workspace.
Add the plugins to default.target.
If there are still problems try selecting the plugins or update site and clicking "Update", and/or restarting eclipse.
This almost drove me crazy. I hope this helps someone.
I think you first use a fresh copy of eclipse to add a plugin,if that plugin is already installed.Copy eclipse.zip in new folder,unzip it ,run eclipse and then start using update site to do this please
Help-->Install new software-->"paste update site url"-->It will catch updates-->click ok-->accept license-->"continue process"-->It gives a warning press Ok " now you are success in updating.
Note:An internet connection should be properly available.
I was trying to add the PDT,
Indigo - http://download.eclipse.org/releases/indigo
Unable to read repository at http://download.eclipse.org/releases/indigo.
Unable to read repository at http://download.eclipse.org/releases/indigo.
http://download.eclipse.org/releases/indigo is not a valid repository location.
So what's the correct url ? I went and looked lots of places. Can someone point me to the exact link ?
Edit :
Problem once you go to http://download.eclipse.org/releases/indigo , you will see the below error. So I guess its moved somewhere.
This software repository URL, http://download.eclipse.org/releases/indigo/ , provides access to the software repository for the Eclipse indigo release. Until its released in June 2011, it will contain milestone builds.
The repository site URL is typically pre-populated in the list of software repositories when you install the Eclipse Platform or SDK.
For more information about installing or updating software, see the Eclipse Platform Help.
There is also a collection of handy, downloadable all-in-one zip files available for many interests and platforms. Many people find these all-in-one packages the easiest way to get started.
Can you connect to internet at all through Eclipse?
Open the internal webbrowser. In Eclipse: Window -> show view -> Other -> General: Internal web browser.
Look up any normal adress, is it working?
Can you connect to another update site? Try for example Eclipse Emma:
http://update.eclemma.org/
Do you see anything there?
What are your proxy preferences? Go to Window -> preferences -> General: Network connections.
The active provider:
Specifies the settings profile to be used when opening connections. Choosing the Direct provider causes all the connections to be opened without the use of a proxy server. Selecting Manual causes settings defined in Eclipse to be used. On some platforms there is also a Native provider available, selecting this one causes settings that were discovered in the OS to be used.
If internet is working fine outside of Eclipse, try changing to Native. After that, try Direct.
I have encountered problems where an update site would not load, then I had to remove it and add it again. This forces Eclipse to reread the contents of the site even if it has a cached copy. So, if you still get no connection to the indigo update site, but everything else is working, try that. Go to Window -> Preferences -> Install/update: Available Software sites. Then remove and add the indigo site. Just remember to copy the adress so you can add it again.
As suggested in a comment below by #lostiniceland, this is a simpler way to achieve the above:
Goto Window -> Preferences -> Install Update -> Available Software Sites => select the entry and click the "Reload" button to the right. This is sometimes also helpful when you have a local updatesite for testing custom plugins
I had the same problem and resolved it by
Deleting the cache directory \eclipse\p2\org.eclipse.equinox.p2.repository\cache
Refreshing the repositories.
Preferences -> Install Update -> Available Software Sites => select the entry
Click the "Reload"
Check if you are able to connect to eclipse market place url (http://marketplace.eclipse.org/) from browser. If its working then the issue is because of proxy server using in your network.
We have to update eclipse with proxy server details used in our network.
Go to :- Windows-> Preference -> General -> Network Connections.
And edit HTTP ,with proxy details.
Click OK
Done.
I was having this problem and it turned out to be our firewall. It has some very general functions for blocking ActiveX, Java, etc., and the Java functionality was blocking the jar downloads as Eclipse attempted them.
The firewall was returning an html page explaining that the content was blocked, which of course went unseen. Thank goodness for Wireshark :)
Another way to solve this kind of error is to start eclipse with this argument
-vmargs -Djava.net.preferIPv4Stack=true
Working fine with Eclipse (x64) 4.3.1
Had this problem in Linux, and I found that the user doesn't have permission to update the eclipse directory
change the owner of eclipse folder recursively, or run eclipse with user who has write permission to the folder
In Windows 7 32-bit version, I started the eclipse with as an administrator. This worked for me.
I had the same problem. Try to deactivate your Firewall (I had avast!), which worked for me.
(Sorry for my English I'm French :D)
Please make sure you are using correct url. If You are using url - http://download.eclipse.org/releases/indigo on your eclipse luna(v4.4) then it might be not working in this case you should use - http://download.eclipse.org/releases/luna
I have tried this and its working.
What worked for me:
Since yesterday, I have been trying to install the Eclipse plugin - "Remote System Explorer" from the Eclipse marketplace on a freshly downloaded Eclipse 4.8 as shown below,
and everytime I was getting this error:
Unable to read repository at http://download.eclipse.org/releases/kepler/.
Unable to read repository at http://download.eclipse.org/releases/kepler/201306260900/content.jar.
download.eclipse.org:80 failed to respond
which brought me to this SO post.
I tried a few solutions mentioned here in the different answers like this one and this one and this one, but none of them worked. I just gave up almost, thinking that either the corporate network here is somehow blocking the specific download requests or the 4.8 version of Eclipse is buggy.
Discovery:
I could not reload all the paths under 'Window' -> 'Preferences' -> 'Install/Update' -> 'Available Software Sites'.
Preconditions:
What did work for me from the beginning was:
I could open google.com from the internal web browser of eclipse and,
some of the update paths, I could reload even. (As was mentioned as a possible solution or test, in some of the answers here, like this one.)
Finally, this answer put me on the right track - for my specific case, at least. Just my step was to do the exact opposite of what that answer was doing.
Solution:
I had to change all the http:\\ paths to https:\\ and suddenly it started to work. I don't know who - either IE/Edge on Windows 10 or the Windows 10 firewall or the company firewall is blocking HTTP communications. But with HTTPS, I can finally install plugins from the Marketplace.
HTTPS reload works
I must say, what is strange is that not all the paths required https. Except a few, the rest seemed to have had no problem working with HTTP. But I anyways changed all to HTTPS, just for good measure.
Then reload all the repositories one by one. Press "Apply and close".
Then check for updates. Eclipse will update itself successfully now.
Restart after update.
Finally you can install whichever Plugin you would like to from the Eclipse Marketplace.
Note: In case during the update, this same error pops up again, then see in the repositories that any new paths added by eclipse during the update, are also HTTPS and not HTTP.
Kudos to #Fredrik above. His answer didn't work for me, but lead me to the resolution of my issue:
In 'Window'|'Preferences'|'Install/Update'|'Available Software Sites'. The location that I was attempting to install from the 'Marketplace' was getting inserted with an https:// URL. Editing this to http:// allowed me to then use 'Help'|Install New Software ...' to select the repository from the drop down 'Work with:' combobox instead of having the https:// one automatically inserted and used.
For eclipse, there are normally different options available:
If you want to use the PHP development environment (only), you should go with the corresponding distro of eclipse. There is a distro for PHP provided by Zend.
You may add PDT to an indigo release by doing the following steps:
Check if an update site for PDT is included in your eclipse installation:
Open the Help > Install New Software dialog.
Click there on the link Available Software Sites.
In the list, the URL http://download.eclipse.org/releases/indigo should be marked.
Close the dialog.
Select from the Work with list the site with the right URL.
Enter in the filter box PDT and search in the list for the PDT tooling you want to install.
Install the PDT tooling.
If that does not work, you may download a complete update site from the PDT project site.
Visit the site (URL above).
Click on downloads.
Search there for the string "all in one update site".
Download the zip file.
Install it in your Indigo installation. Help > Install New Software > Add... > Enter name and select from button Archive the zip file
I hope some of the installation instructions will work for you.
This is the correct URL. Chances are Eclipse cannot read it properly because of the Internet connexion.
Are you using a proxy to get Internet access? If this is the case you need to notify Eclipse via the "Preferences/General/Network Connections" menu.
That URL works fine. The message you report is normal when you look at it in a browser. My copy of Eclipse has no problems talking to it. If yours does, I suspect a proxy configuration error in your copy of eclipse.
Also try it by turning off the firewall, and similar services. It worked for me!
If you can't access https://dl-ssl.google.com/android/eclipse/ simply
try to use http://
instead of https://
I spent whole my day figuring out this and found the following. And it works great now.
This is basically an issue with your gateway or proxy, If you are under proxy network, Please go to the network settings and set the proxy server settings(server, port , user name and password). If you are under direct gateway network, your firewall may be blocking the http get request from your eclipse.
I was also unable to read the repository. Even after the disabling most of the entries under Available Software Sites things were still not working.
I had no proxy to worry about and even disabling the firewall (which I do not recommended) as a last resort did not help.
Viewing the error log, from the dialog box which Eclipse displayed, there was mention of a cache directory under .eclipse in my home directory. I deleted the two cache directories I found and Eclipse was working again.
For my setup the two directories I deleted were:
.eclipse/org.eclipse.platform_4.4.2_119745494_macosx_cocoa_x86_64/p2/org.eclipse.equinox.p2.core/cache
.eclipse/org.eclipse.platform_4.4.2_119745494_macosx_cocoa_x86_64/p2/org.eclipse.equinox.p2.repository/cache
NB: My setup is Eclipse Luna 4.4.2 running on Mac OS X Yosemite 10.10.3
In my case, I discovered that the major issue why my eclipse won't connect to internet is my Internet Service Provider. I was only able to browse some websites but unable to browse other website. Fixing the issue with the ISP worked.
My issue was the Eclipse Marketplace client needed updating.
After trying Fredriks solution of
Go to Window -> Preferences -> Install/update: Available Software sites. Then remove and add the indigo site. Just remember to copy the adress so you can add it again.
The Marketplace client wouldn't load. But I could access it via a browser.
So, I went to the Help -> Eclipse Marketplace
it loaded fine
Clicked on Installed and found the Eclipse Marketplace Client and it had so i clicked it it updated and then when I did the standard update everything worked.
Sometimes, there will be firewalls and restrictions in the network preventing the plugin to get downloaded. We can try some other network. This actually resolved my issue.
I was facing the issue while adding team explorer plugin to eclipse from https://marketplace.eclipse.org/content/team-explorer-everywhere.
Used team explorer plugin for ecplise for internal use of xamarin for mac.
Error:
unable to read repository at http://marketplace.eclipse.org/content/team-explorer-everywhere
org.eclipse.equinox.p2.core.provisionexception unable to read repository
Unknown host exception
Goto https://github.com/microsoft/team-explorer-everywhere/releases
Download: TFSEclipsePlugin-UpdateSiteArchive-14.135.0.zip
From Eclipse->Help->Install new software.
From Add Repository window select Archive select the downloaded zip file.
Continue installation.
Also try if in the eclipse paths there is some duplicated
Luna - http://download.eclipse.org/releases/luna
Luna - http://download.eclipse.org/releases/luna/1234567...
Try both of them, one may work.
In my case, with 2 eclispes installed, in one of them the path
Luna - http://download.eclipse.org/releases/luna
works, in the other one, i must select:
Luna - http://download.eclipse.org/releases/luna/123456...
In both the internal browser can access to internet. Both are Luna (but one is RCM, the other one i don't remember).
No meu caso era o anti-vírus que estava bloqueando a conexão do eclipse, desativei o anti-víruse tudo funcionou o//.
Translation:
In my case it was the anti-virus that was blocking the connection from eclipse. I disabled the anti-virus and everything worked.
I'm trying to add this repository to Eclipse (Indigo):-
http://download.eclipse.org/releases/indigo
Seems okay when checked in a browser, but I keep getting "unable to connect" in Eclipse, and when I check the URL Eclipse is apparently looking for:-
http://download.eclipse.org/releases/indigo/content.xml
in a browser, I get a "404 not found". The locations for previous releases (e.g. galileo) don't seem to be there either. Have they moved? Am I misunderstanding something?
I tried some of the suggestions in this previous thread:-
Eclipse updates not working
But they don't seem to work (and I'm not using a proxy anyway).
Hemdoar
This worked for me:
Open terminal. Navigate to Eclipse folder.
sudo nano eclipse.ini
at the bottom, add this line in:
-Djava.net.preferIPv4Stack = true
Then ctrl+O to save, ctrl+X to close (it says at bottom). IPv4/IPv6 problems? Solved.
Then delete the cache VonC said to:
<eclipse>/p2/org.eclipse.equinox.p2.repository/cache
(This can be done using "sudo rmdir /p2/org.eclipse.equinox.p2.repository/cache" or by typing "sudo nautilus" into terminal, to open a root-priveleged filesystem browser, than navigating to, selecting the folder, and pressing the delete key). Then restart eclipse, goto Help>install new software>available software sites
Make sure the repos you want (such as "http://download.eclipse.org/egit/updates/") has a "/" right at the end. If it doesn't, delete that entry, and create a new, identical one which does, because Eclipse won't just let you edit it and click ok. Then click ok, and from the combo box choose e.g. the egit link, and lo, it will find it.
Still not working? Window>show view>internal web browser; check it can access internet. Hope that helps!
Credit to:
http://drfits.com/2011/11/13/eclipse-contacting-software-sites-has-encountered-a-problem/
VonC Sep 14 '11 at 6:03
I used VonC's answer to good effect. I also uninstalled a program called webroot. I think this had something to do with it because other programs were also having network problems.
This is because windows IPV6 issue. Try adding the following VM option in the eclipse.ini
-Djava.net.preferIPv4Stack=true
Can you connect to internet at all through Eclipse?
Open the internal webbrowser. In Eclipse: Window -> show view -> Other -> General: Internal web browser.
Look up any normal adress, is it working?
Can you connect to another update site? Try for example Eclipse Emma: http://update.eclemma.org/ Do you see anything there?
What are your proxy preferences? Go to Window -> preferences -> General: Network connections.
The active provider:
Specifies the settings profile to be used when opening connections. Choosing the Direct provider causes all the connections to be opened without the use of a proxy server. Selecting Manual causes settings defined in Eclipse to be used. On some platforms there is also a Native provider available, selecting this one causes settings that were discovered in the OS to be used.
If internet is working fine outside of Eclipse, try changing to Native. After that, try Direct.
I have encountered problems where an update site would not load, then I had to remove it and add it again. This forces Eclipse to reread the contents of the site even if it has a cached copy. So, if you still get no connection to the indigo update site, but everything else is working, try that. Go to Window -> Preferences -> Install/update: Available Software sites. Then remove and add the indigo site. Just remember to copy the adress so you can add it again.
As suggested in a comment below by #lostiniceland, this is a simpler way to achieve the above:
Goto Preferences -> Install Update -> Available Software Sites => select the entry and click the "Reload" button to the right. This is sometimes also helpful when you have a local updatesite for testing custom plugins
first resolve proxy conflicts and if then too eclipse is not getting connected to internet *turnoff your firewall/antiviru*s and try again
To resolve proxy conflicts:Go to windows->prefernces-general tab->network settings
if you dont use proxy settings, cgange native to direct
if you use proxy, chenge native to manual and fill details of proxy for http and https by pressing 'edit' and clear SOCKS tab by pressing 'clear'
check if your SOCK is disabled on operating system too. or doing it open to 'Internet options' dailog box. Go to connections and press lan connection. press 'advanced' button ans clear the textboxes in front of 'socks' and uncheck the msg saying 'use same address for other network protocols'
I did this and worked for me
If you are using Fiddler2 (or any other web sniffer/debugger tool), it may be your problem, as it acts as a local proxy.
Sometimes, even if its not running, I find myself obligated to start it and disable traffic capture.
Hope that helps!