Netbeans 7.1 won't run after installing python

Question

I have just installed python in nb7.1 using http://deadlock.netbeans.org/hudson/job/nbms-and-javadoc/lastStableBuild/artifact/nbbuild/nbms/updates.xml.gz and and it doesn't show up.

I want to turn some plug-ins of from its home dir. How can I achieve this?

then I read on NB Forums (http://forums.netbeans.org/post-124523.html#115641), I found this guys saying "Dont do this step it will crash Netbeans" But no one is telling how to reverse this.

EDIT

here is the log output

WARNING [org.netbeans.core.modules]: had to upgrade dependencies for module net.sf.efhnbm: added = [module org.openide.awt, module org.openide.options > 6.7, module org.openide.util.lookup > 8.0] removed = []; details: [#170056: Separate module for Lookup API, #88531 Remove SystemOption usage from PrintSettings, SaveCookie extends Savable. To compile you need to include openide.awt on classpath.]
WARNING [org.netbeans.core.modules]: had to upgrade dependencies for module org.netbeans.modules.selenium.php: added = [module org.openide.awt] removed = []; details: [SaveCookie extends Savable. To compile you need to include openide.awt on classpath.]
java.lang.NoClassDefFoundError: org/osgi/framework/startlevel/BundleStartLevel while loading org.eclipse.osgi.framework.internal.core.AbstractBundle; see http://wiki.netbeans.org/DevFaqTroubleshootClassNotFound
    at org.netbeans.ProxyClassLoader.selfLoadClass(ProxyClassLoader.java:304)
    at org.netbeans.ProxyClassLoader.loadClass(ProxyClassLoader.java:227)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at org.eclipse.osgi.framework.internal.core.EquinoxLauncher.internalInit(EquinoxLauncher.java:67)
    at org.eclipse.osgi.framework.internal.core.EquinoxLauncher.init(EquinoxLauncher.java:37)
    at org.eclipse.osgi.launch.Equinox.init(Equinox.java:178)
    at org.netbeans.modules.netbinox.Netbinox.init(Netbinox.java:75)
    at org.netbeans.core.netigso.Netigso.prepare(Netigso.java:149)
    at org.netbeans.NetigsoFramework.turnOn(NetigsoFramework.java:214)
    at org.netbeans.ModuleManager.enable(ModuleManager.java:1087)
    at org.netbeans.ModuleManager.enable(ModuleManager.java:906)
    at org.netbeans.core.startup.ModuleList.installNew(ModuleList.java:340)
    at org.netbeans.core.startup.ModuleList.trigger(ModuleList.java:276)
    at org.netbeans.core.startup.ModuleSystem.restore(ModuleSystem.java:294)
    at org.netbeans.core.startup.Main.getModuleSystem(Main.java:169)
    at org.netbeans.core.startup.Main.start(Main.java:305)
    at org.netbeans.core.startup.TopThreadGroup.run(TopThreadGroup.java:123)
    at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NoClassDefFoundError: org/osgi/framework/startlevel/BundleStartLevel
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
    at org.netbeans.JarClassLoader.doLoadClass(JarClassLoader.java:266)
    at org.netbeans.ProxyClassLoader.selfLoadClass(ProxyClassLoader.java:300)
    ... 17 more
Caused by: java.lang.ClassNotFoundException: org.osgi.framework.startlevel.BundleStartLevel starting from ModuleCL@57f530d8[org.netbeans.modules.netbinox] with possible defining loaders null and declared parents [ModuleCL@4145f572[org.netbeans.core.netigso], org.netbeans.MainImpl$BootClassLoader@18b753f8, ModuleCL@65cc892e[org.netbeans.libs.osgi]]
    at org.netbeans.ProxyClassLoader.loadClass(ProxyClassLoader.java:264)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    ... 22 more
Caused by: java.lang.ClassNotFoundException: org.osgi.framework.startlevel.BundleStartLevel
    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at org.netbeans.ProxyClassLoader.loadClass(ProxyClassLoader.java:262)
    ... 23 more

Regards,

Answer 1

I found the blasted plugin under Users\$MyUser$\AppData\Roaming\Netbeans\7.2

Made special note of (read: deleted) files in Python-sounding directories that matched the time I ran into the startup problem. Netbeans ran fine afterwards.

Answer 2

At least in my case it was the addition of the "development update center" which broke netbeans and not the python plugin itself. See post https://stackoverflow.com/a/9993301/970910 for a possible fix the issue.

Answer 3

In order to remove the plugin manually :

Go in your home, there is a .netbeans directory. Go inside and delete the plugins files here.

http://forums.netbeans.org/post-78253.html&highlight=