A java.lang.NullPointerException exception has occurred
Could you please attach your messages.log file? (It can be found in NetBeans
userdir under var/log/)
Created attachment 23552 [details]
Netbeans Error Log
Created attachment 23553 [details]
Screen Shot of Error message
Looks like a platform issue.
Seems to be caused by issue: #46813.
The NPE is fixed by Jesse's commit:
org.netbeans.spi.project.support.ant.PropertyUtils rev 1.29
*** This issue has been marked as a duplicate of 46813 ***
Note: the actual NPE is fixed by my commit for NB 5.0, but other things may
still be broken. My commit just produced a more useful message for it.