compilation error - can not open source input file

[vit bernatik]

Compiling nordic project I get errors:

compiling main.c...
..\..\..\main.c(37): error:  #5: cannot open source input file "softdevice_handler.h": No such file or directory
  #include "softdevice_handler.h"
..\..\..\main.c: 0 warnings, 1 error

and error:

compiling softdevice_handler.c...
"no source": Error:  #5: cannot open source input file "..\..\..\..\..\..\components\softdevice\common\softdevice_handler\softdevice_handler.c": No such file or directory
..\..\..\..\..\..\components\softdevice\common\softdevice_handler\softdevice_handler.c: 0 warnings, 1 error

I'm sure that those file exists and that paths is filled correctly. So why I'm getting these errors??

[vit bernatik]

The error was too long path. Windows limits path to ~255 characters. And Keil compiler combines relative path + keil project path so the used paths is longer than absolute path to source file.

Solution is either to copy project closer to root.

Or in keil Project->options->C/C++->Misc Controls add --reduce_paths.

see more here

If you are really missing the files maybe you can try this answer

[Susheel Nuguru]

I liked that you have done your homework searching the forum first