fatal error: dlib/image_processing/frontal_face_detector.h: No such file or directory about extreme_3d_faces

[anhttran]

Did you build Dlib to shared object (.so) file?
Check the CMakeLists.txt of Dlib before building. With my version (19.10), I need to add the following line befor building Dlib:
"set(DLIB_IN_PROJECT_BUILD false)"

[anlan625]

Hi Thanks for the reply.

I checked my CMakeLists.txt again and I found it includes "set(DLIB_IN_PROJECT_BUILD false)". I tried to build it from scratch again and the same problem comes again.

Here is my CMakeLists.txt:
get_directory_property(has_parent PARENT_DIRECTORY)
if(NOT has_parent
set(DLIB_IN_PROJECT_BUILD false)
endif()
add_subdirectory(dlib)

According to dlib:
( When you call add_subdirectory(dlib) from a parent CMake project dlib's
CMake scripts will assume you want to statically compile dlib into
whatever you are building rather than create a standalone copy of dlib.
This means CMake will build dlib as a static library, disable dlib's
install targets so they don't clutter your project, and adjust a few other
minor things that are convenient when statically building dlib as part of
your own projects.
On the other hand, if there is no parent CMake project or if
DLIB_IN_PROJECT_BUILD is set to false, CMake will compile dlib as a normal
standalone library (either shared or static, based on the state of CMake's
BUILD_SHARED_LIBS flag), and include the usual install targets so you can
install dlib on your computer via make install. Since the only reason
to build this CMakeLists.txt (the one you are reading right now) by itself
is if you want to install dlib, we indicate as such by setting
DLIB_IN_PROJECT_BUILD to false.)

Later, I tried to delete the "add_subdirectory(dlib)" and build it again, it still does not work.

I wonder what to do now. Thanks again!

[FelipeCrispim]

Hi @anlan625 , one temporary solution that you can do is directly add the path of the Dlib in the includes of the file modules/PoseExpr/include/DlibWrapper.h.

[anhttran]

Thank you for your interest on my work.
I will provide Docker file to build this code in few days. Hope it will solve all compilation issues.

[anhttran]

I have converted my code to Docker for easier installation.