Here is the error message c:\diyclock>make sdcc -code-size 4089 -xram-size 0 -data-loc 0x30 -disable-warning 126 -disable-warning 59 -Dstc15f204ea -o build/adc.rel -c src/adc.c src/adc.c:49: error 257: Failed to open output file 'build/adc.asm' (No such file or directory) Makefile:20: recipe for target 'build/adc.rel' failed make: *** Error 1 Running it with a debug, it throws up heaps of data, but the ending bit when it starts to error is Must remake target 'build/adc.rel'. I know the make program is working properly, as I was able to compile another file properly as a test. Well I thought I would start to be annoying as my skills are so limited.