This would be the exact error
Error : .onAttach failed in attachNamespace() for 'forecast', details:
call: readLines(f)
error: 5 arguments passed to .Internal(readLines) which requires 6
Error: package or namespace load failed for 'forecast'
A first chance exception of type 'RDotNet.ParseException' occurred in RDotNet.dll
Error : .onAttach failed in attachNamespace() for 'forecast', details:
call: readLines(f)
error: 5 arguments passed to .Internal(readLines) which requires 6
Error: package or namespace load failed for 'forecast'
A first chance exception of type 'RDotNet.ParseException' occurred in RDotNet.dll