The texts in the ALIASES are taken literally and therefore should be (in this case) no space after the comma as this results in a space ion the resulting link and thus a file not found.
right after the merge of 4.14 release branch
+ manual fix on one line in:
* Arrangement_on_surface_2/include/CGAL/IO/Arr_text_formatter.h
* .travis/generate_travis.sh