While I am running intel fortran I got the following error "Unhandled exception at 0x7798176e in Console4.exe: 0xC0000005: Access violation writing location 0x0000000000030fd8." , and I don't know how to solve it.
This is a FFAQ (fairly frequently asked question). Read, for example, http://software.intel.com/en-us/forums/topic/378429 .
0x30fd8 may be the address of a constant, fixed string or may be within the code segment. The address could itself have been incorrectly computed. Recompiling and running with /traceback (and other debugging options) will help you to locate, analyze and fix the error.