i am receive the same error
PS E:\usr\sap\fdv\DVEBMGS00\sec> $env:SECUDIR = "E:\usr\sap\FDV\DVEBMGS00\sec"
PS E:\usr\sap\fdv\DVEBMGS00\sec> sapgenpse seclogin -p SAPSSLC.pse
running seclogin with USER="FDVADM"
seclogin: Couldn't open PSE "E:\usr\sap\FDV\DVEBMGS00\sec\SAPSSLC.pse" (Cannot open file)