Project include trouble

I have a project that has a header file (includeAll.h) located in the include folder. I include it from main.cpp, no issues. I include it in another file “homestat_FS.cpp”, and it appears to work. What i mean is that if i use the intellisense, i can see it in the list. And once in the file, all variable references are ok. If i remove the #include “includeAll.h” all variables are broken (which i would expect). I try to compile and i get “lib/homestat_filesystem/homestat_FS.cpp:1:24: fatal error: includeAll.h: No such file or directory”. Why does this say its not there when it clearly is?

Have you resolved this issue?