Hi , I am installing NW7.5 application server ABAP as administrator user . First I got the error in Installing common system files phase (CJS-30129 Creating node $(DIR_INSTALL) with type DIRECTORY failed. Original exception text was: syslib.filesystem.nodeCreationFailed) after many trials I logged in as SIDadm and started installation with old option and it was fine upto 20th phase. After this I got error in Install instance basics of Ascs01 (sapstartsrv.exe returned with -1). In log file it is stating that target node does not exist . Could any one help me to resolve this issue .