Java: reading configuration: Unable to create lock manager

Question

I am getting following error. I have Eclipse Mars and JRE V 1.7 (i initially had installed V1.8 but as it was not compatible so uninstalled and installed this version.)

I am facing this issue when invoking Eclipse itself.

eclipse.buildId=4.5.0.I20150603-2000
java.version=1.7.0_80
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=en_US

!ENTRY org.eclipse.osgi 4 0 2015-07-14 11:20:39.006
!MESSAGE Error reading configuration: Unable to create lock manager.
!STACK 0
java.io.IOException: Unable to create lock manager.
    at org.eclipse.osgi.storagemanager.StorageManager.open(StorageManager.java:698)
    at org.eclipse.osgi.storage.Storage.getChildStorageManager(Storage.java:1750)
    at org.eclipse.osgi.storage.Storage.getInfoInputStream(Storage.java:1767)
    at org.eclipse.osgi.storage.Storage.<init>(Storage.java:127)
    at org.eclipse.osgi.storage.Storage.createStorage(Storage.java:86)
    at org.eclipse.osgi.internal.framework.EquinoxContainer.<init>(EquinoxContainer.java:75)
    at org.eclipse.osgi.launch.Equinox.<init>(Equinox.java:31)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:295)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:231)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
    at org.eclipse.equinox.launcher.Main.main(Main.java:1488)

Answer 1

I suspect that you don't have to correct write permissions for whatever folder eclipse is trying to write it's lock file to. Make sure you have the correct permissions to write.

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In addition, you may also need to run Eclipse itself with administrative privileges. For instance, in Windows, right-click -> Run as administrator.