Error: The system does not support Eclipse based ABAP Development Tools
Show Error MSG：
The system does not support Eclipse based ABAP Development Tools
ADT requires at least an AS ABAP with SAP Kernel 7.20 and SAP BASIS 7.31 with support package stack 04.
Check system version
Your are on support package level SAP_BASIS 7.31 SP2. You need at least SAP_BASIS 7.31 SP4.
Reference：
http://scn.sap.com/docs/DOC-29113
http://scn.sap.com/community/abap/eclipse/blog/2012/07/10/which-sap-netweaver-as-abap-release-is-compatible-with-adt
