Checking if your kit is complete... Looks good Writing Makefile for Slinke Microsoft (R) Program Maintenance Utility Version 7.10.3077 Copyright (C) Microsoft Corporation. All rights reserved. cp Slinke.pm blib\lib\Slinke.pm Microsoft (R) Program Maintenance Utility Version 7.10.3077 Copyright (C) Microsoft Corporation. All rights reserved. C:\cpanrun\build\5-10-0\bin\perl.exe "-Iblib\lib" "-Iblib\arch" test.pl 1..1 Can't locate Device/SerialPort.pm in @INC (@INC contains: blib\lib blib\arch C:/cpanrun/build/5-10-0/site/lib C:/cpanrun/build/5-10-0/lib .) at blib\lib/Slinke.pm line 38. BEGIN failed--compilation aborted at blib\lib/Slinke.pm line 38. Compilation failed in require at test.pl line 11. BEGIN failed--compilation aborted at test.pl line 11. NMAKE : fatal error U1077: 'C:\cpanrun\build\5-10-0\bin\perl.exe' : return code '0x2' Stop.