I launched Eclipse earlier to jot down a snippet and was faced with the following as an error when I tried to run a fresh project:
An internal error occur
Got this from another site of some guy who got this same error after upgrading. Worked for me as well. Apparently putting the following line in your eclipse.ini helps:
eclipse.ini
-Dcom.ibm.icu.util.TimeZone.DefaultTimeZoneType=ICU