20 March 2018 10:55:02.538 AM VEC_IO_TEST FORTRAN90 version Test the VEC_IO library. TEST01 R8UD_IO stores and retrieves data vectors. The data type is "double precision", (R8) The storage format is "unformatted", (U) The access mode is "direct" (D). Creating file "r8ud_io_test01.dat". File "r8ud_io_test01.dat" has been assigned I/O unit 1 R8UD_IO - Fatal error! IO error of type 5015 Could not write to "r8ud_io_test01.dat".