I use Windows 10 and jre1.8.0_51. I don\'t know why when I start Eclipse it always displays an alert message \"An error has occurred. See the log file null.\"
And I can
I too came across the same error. My log file says : Java.io.FileNotFoundException: C:\Eclipse\eclipse-jee-luna-SR2-win32-x86_64\eclipse\configuration\org.eclipse.osgi.manager.fileTableLock (Access is denied)
So, i copied entire eclipse in another folder and it worked for me.
So, for me the problem was write access, because eclipse need write across configuration folder, in my case eclipse was unzipped by some other user and i didn't have the access.