Compilation error due to missing "fdeep/fdeep.hpp" header file in a C++ project.

[Alextenz]

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SIM_VEHICLE: "/pid-piper/simulator/modules/waf/waf-light" "configure" "--board" "sitl"
invalid lock file in /pid-piper/simulator
Setting top to : /pid-piper/simulator
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Checking for program 'python' : /usr/bin/python
Checking for python version >= 2.7.0 : 2.7.17
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'configure' finished successfully (1.041s)
SIM_VEHICLE: Building
SIM_VEHICLE: "/pid-piper/simulator/modules/waf/waf-light" "build" "--target" "bin/arducopter"
Waf: Entering directory `/pid-piper/simulator/build/sitl'
[ 3/533] Compiling libraries/AC_AttitudeControl/AC_AttitudeControl_Sub.cpp
[ 4/533] Compiling libraries/AC_AttitudeControl/AC_AttitudeControl_Heli.cpp
[ 5/533] Compiling libraries/AC_AttitudeControl/ControlMonitor.cpp
[ 6/533] Compiling libraries/AC_AttitudeControl/AC_AttitudeControl_Multi.cpp
[ 7/533] Compiling libraries/AC_AttitudeControl/AC_PosControl_Sub.cpp
[ 8/533] Compiling libraries/AC_AutoTune/AC_AutoTune.cpp
[ 14/533] Compiling libraries/AC_PID/AC_PID.cpp
[ 16/533] Compiling libraries/AC_PID/AC_HELI_PID.cpp
[ 17/533] Compiling libraries/AC_PrecLand/AC_PrecLand.cpp
[ 19/533] Compiling libraries/AC_PrecLand/AC_PrecLand_SITL_Gazebo.cpp
[ 20/533] Compiling libraries/AC_PrecLand/AC_PrecLand_SITL.cpp
[ 21/533] Compiling libraries/AC_PrecLand/AC_PrecLand_IRLock.cpp
[ 22/533] Compiling libraries/AC_PrecLand/AC_PrecLand_Companion.cpp
[ 23/533] Compiling libraries/AC_Sprayer/AC_Sprayer.cpp
[ 24/533] Compiling libraries/AC_WPNav/AC_Loiter.cpp
[ 25/533] Compiling libraries/AC_WPNav/AC_WPNav.cpp
In file included from ../../libraries/PID_Piper/PID_Piper.h:5:0,
from ../../libraries/AP_Compass/AP_Compass.h:17,
from ../../libraries/AP_AHRS/AP_AHRS.h:25,
from ../../libraries/AP_AHRS/AP_AHRS_View.h:23,
from ../../libraries/AC_AttitudeControl/AC_AttitudeControl.h:10,
from ../../libraries/AC_AttitudeControl/AC_AttitudeControl_Sub.h:6,
from ../../libraries/AC_AttitudeControl/AC_AttitudeControl_Sub.cpp:1:
../../libraries/PID_Piper/LSTM.h:9:10: fatal error: fdeep/fdeep.hpp: No such file or directory
#include <fdeep/fdeep.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.

In file included from ../../libraries/PID_Piper/PID_Piper.h:5:0,
from ../../libraries/AP_Compass/AP_Compass.h:17,
from ../../libraries/AP_AHRS/AP_AHRS.h:25,
from ../../libraries/AP_Logger/AP_Logger.h:13,
from ../../libraries/AC_PID/AC_PID.h:10,
from ../../libraries/AC_AttitudeControl/AC_PosControl.h:7,
from ../../libraries/AC_AttitudeControl/AC_PosControl_Sub.h:3,
from ../../libraries/AC_AttitudeControl/AC_PosControl_Sub.cpp:1:
../../libraries/PID_Piper/LSTM.h:9:10: fatal error: fdeep/fdeep.hpp: No such file or directory
#include <fdeep/fdeep.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.

In file included from ../../libraries/PID_Piper/PID_Piper.h:5:0,
from ../../libraries/AP_Compass/AP_Compass.h:17,
from ../../libraries/AP_AHRS/AP_AHRS.h:25,
from ../../libraries/AP_Logger/AP_Logger.h:13,
from ../../libraries/AC_PID/AC_PID.h:10,
from ../../libraries/AC_PID/AC_HELI_PID.h:10,
from ../../libraries/AC_PID/AC_HELI_PID.cpp:5:
../../libraries/PID_Piper/LSTM.h:9:10: fatal error: fdeep/fdeep.hpp: No such file or directory
#include <fdeep/fdeep.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.

In file included from ../../libraries/PID_Piper/PID_Piper.h:5:0,
from ../../libraries/AP_Compass/AP_Compass.h:17,
from ../../libraries/AP_AHRS/AP_AHRS.h:25,
from ../../libraries/AP_AHRS/AP_AHRS_View.h:23,
from ../../libraries/AC_AttitudeControl/AC_AttitudeControl.h:10,
from ../../libraries/AC_AttitudeControl/AC_AttitudeControl_Multi.h:6,
from ../../libraries/AC_AttitudeControl/AC_AttitudeControl_Multi.cpp:1:
../../libraries/PID_Piper/LSTM.h:9:10: fatal error: fdeep/fdeep.hpp: No such file or directory
#include <fdeep/fdeep.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.

In file included from ../../libraries/PID_Piper/PID_Piper.h:5:0,
from ../../libraries/AP_Compass/AP_Compass.h:17,
from ../../libraries/AP_AHRS/AP_AHRS.h:25,
from ../../libraries/AC_Sprayer/AC_Sprayer.cpp:3:
../../libraries/PID_Piper/LSTM.h:9:10: fatal error: fdeep/fdeep.hpp: No such file or directory
#include <fdeep/fdeep.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.

In file included from ../../libraries/PID_Piper/PID_Piper.h:5:0,
from ../../libraries/AP_Compass/AP_Compass.h:17,
from ../../libraries/AP_AHRS/AP_AHRS.h:25,
from ../../libraries/AP_Logger/AP_Logger.h:13,
from ../../libraries/AC_PID/AC_PID.h:10,
from ../../libraries/AC_PrecLand/AC_PrecLand_Backend.h:4,
from ../../libraries/AC_PrecLand/AC_PrecLand_Companion.h:4,
from ../../libraries/AC_PrecLand/AC_PrecLand_Companion.cpp:2:
../../libraries/PID_Piper/LSTM.h:9:10: fatal error: fdeep/fdeep.hpp: No such file or directory
#include <fdeep/fdeep.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.

In file included from ../../libraries/PID_Piper/PID_Piper.h:5:0,
from ../../libraries/AP_Compass/AP_Compass.h:17,
from ../../libraries/AP_AHRS/AP_AHRS.h:25,
from ../../libraries/AP_InertialNav/AP_InertialNav.h:3,
from ../../libraries/AC_WPNav/AC_Loiter.h:7,
from ../../libraries/AC_WPNav/AC_Loiter.cpp:2:
../../libraries/PID_Piper/LSTM.h:9:10: fatal error: fdeep/fdeep.hpp: No such file or directory
#include <fdeep/fdeep.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.

In file included from ../../libraries/PID_Piper/PID_Piper.h:5:0,
from ../../libraries/AP_Compass/AP_Compass.h:17,
from ../../libraries/AP_AHRS/AP_AHRS.h:25,
from ../../libraries/AP_AHRS/AP_AHRS_View.h:23,
from ../../libraries/AC_AttitudeControl/AC_AttitudeControl.h:10,
from ../../libraries/AC_AttitudeControl/AC_AttitudeControl_Heli.h:6,
from ../../libraries/AC_AttitudeControl/AC_AttitudeControl_Heli.cpp:1:
../../libraries/PID_Piper/LSTM.h:9:10: fatal error: fdeep/fdeep.hpp: No such file or directory
#include <fdeep/fdeep.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.

In file included from ../../libraries/PID_Piper/PID_Piper.h:5:0,
from ../../libraries/AP_Compass/AP_Compass.h:17,
from ../../libraries/AP_AHRS/AP_AHRS.h:25,
from ../../libraries/AC_PrecLand/AC_PrecLand.cpp:3:
../../libraries/PID_Piper/LSTM.h:9:10: fatal error: fdeep/fdeep.hpp: No such file or directory
#include <fdeep/fdeep.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.

In file included from ../../libraries/PID_Piper/PID_Piper.h:5:0,
from ../../libraries/AP_Compass/AP_Compass.h:17,
from ../../libraries/AP_AHRS/AP_AHRS.h:25,
from ../../libraries/AP_Logger/AP_Logger.h:13,
from ../../libraries/AC_PID/AC_PID.h:10,
from ../../libraries/AC_PrecLand/AC_PrecLand_Backend.h:4,
from ../../libraries/AC_PrecLand/AC_PrecLand_IRLock.h:4,
from ../../libraries/AC_PrecLand/AC_PrecLand_IRLock.cpp:2:
../../libraries/PID_Piper/LSTM.h:9:10: fatal error: fdeep/fdeep.hpp: No such file or directory
#include <fdeep/fdeep.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.

In file included from ../../libraries/PID_Piper/PID_Piper.h:5:0,
from ../../libraries/AP_Compass/AP_Compass.h:17,
from ../../libraries/AP_AHRS/AP_AHRS.h:25,
from ../../libraries/AP_Logger/AP_Logger.h:13,
from ../../libraries/AC_PID/AC_PID.h:10,
from ../../libraries/AC_PID/AC_PID.cpp:5:
../../libraries/PID_Piper/LSTM.h:9:10: fatal error: fdeep/fdeep.hpp: No such file or directory
#include <fdeep/fdeep.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.

In file included from ../../libraries/PID_Piper/PID_Piper.h:5:0,
from ../../libraries/AP_Compass/AP_Compass.h:17,
from ../../libraries/AP_AHRS/AP_AHRS.h:25,
from ../../libraries/AP_Logger/AP_Logger.h:13,
from ../../libraries/AC_PID/AC_PID.h:10,
from ../../libraries/AC_PrecLand/AC_PrecLand_Backend.h:4,
from ../../libraries/AC_PrecLand/AC_PrecLand_SITL.h:5,
from ../../libraries/AC_PrecLand/AC_PrecLand_SITL.cpp:2:
../../libraries/PID_Piper/LSTM.h:9:10: fatal error: fdeep/fdeep.hpp: No such file or directory
#include <fdeep/fdeep.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.

In file included from ../../libraries/PID_Piper/PID_Piper.h:5:0,
from ../../libraries/AP_Compass/AP_Compass.h:17,
from ../../libraries/AP_AHRS/AP_AHRS.h:25,
from ../../libraries/AP_AHRS/AP_AHRS_View.h:23,
from ../../libraries/AC_AttitudeControl/AC_AttitudeControl.h:10,
from ../../libraries/AC_AttitudeControl/AC_AttitudeControl_Multi.h:6,
from ../../libraries/AC_AutoTune/AC_AutoTune.h:23,
from ../../libraries/AC_AutoTune/AC_AutoTune.cpp:1:
../../libraries/PID_Piper/LSTM.h:9:10: fatal error: fdeep/fdeep.hpp: No such file or directory
#include <fdeep/fdeep.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.

In file included from ../../libraries/PID_Piper/PID_Piper.h:5:0,
from ../../libraries/AP_Compass/AP_Compass.h:17,
from ../../libraries/AP_AHRS/AP_AHRS.h:25,
from ../../libraries/AP_Logger/AP_Logger.h:13,
from ../../libraries/AC_PID/AC_PID.h:10,
from ../../libraries/AC_PrecLand/AC_PrecLand_Backend.h:4,
from ../../libraries/AC_PrecLand/AC_PrecLand_SITL_Gazebo.h:5,
from ../../libraries/AC_PrecLand/AC_PrecLand_SITL_Gazebo.cpp:2:
../../libraries/PID_Piper/LSTM.h:9:10: fatal error: fdeep/fdeep.hpp: No such file or directory
#include <fdeep/fdeep.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.

In file included from ../../libraries/PID_Piper/PID_Piper.h:5:0,
from ../../libraries/AP_Compass/AP_Compass.h:17,
from ../../libraries/AP_AHRS/AP_AHRS.h:25,
from ../../libraries/AP_InertialNav/AP_InertialNav.h:3,
from ../../libraries/AC_WPNav/AC_WPNav.h:7,
from ../../libraries/AC_WPNav/AC_WPNav.cpp:2:
../../libraries/PID_Piper/LSTM.h:9:10: fatal error: fdeep/fdeep.hpp: No such file or directory
#include <fdeep/fdeep.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.

In file included from ../../libraries/PID_Piper/PID_Piper.h:5:0,
from ../../libraries/AP_Compass/AP_Compass.h:17,
from ../../libraries/AP_AHRS/AP_AHRS.h:25,
from ../../libraries/AP_AHRS/AP_AHRS_View.h:23,
from ../../libraries/AC_AttitudeControl/AC_AttitudeControl.h:10,
from ../../libraries/AC_AttitudeControl/ControlMonitor.cpp:1:
../../libraries/PID_Piper/LSTM.h:9:10: fatal error: fdeep/fdeep.hpp: No such file or directory
#include <fdeep/fdeep.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.

Waf: Leaving directory `/pid-piper/simulator/build/sitl'
Build failed
-> task in 'objs/AC_AttitudeControl' failed (exit status 1):
{task 139806281792592: cxx AC_AttitudeControl_Sub.cpp -> AC_AttitudeControl_Sub.cpp.0.o}
(run with -v to display more information)
-> task in 'objs/AC_AttitudeControl' failed (exit status 1):
{task 139806281792720: cxx AC_PosControl_Sub.cpp -> AC_PosControl_Sub.cpp.0.o}
(run with -v to display more information)
-> task in 'objs/AC_PID' failed (exit status 1):
{task 139806281334992: cxx AC_HELI_PID.cpp -> AC_HELI_PID.cpp.0.o}
(run with -v to display more information)
-> task in 'objs/AC_AttitudeControl' failed (exit status 1):
{task 139806281792464: cxx AC_AttitudeControl_Multi.cpp -> AC_AttitudeControl_Multi.cpp.0.o}
(run with -v to display more information)
-> task in 'objs/AC_Sprayer' failed (exit status 1):
{task 139806281791312: cxx AC_Sprayer.cpp -> AC_Sprayer.cpp.0.o}
(run with -v to display more information)
-> task in 'objs/AC_PrecLand' failed (exit status 1):
{task 139806281335632: cxx AC_PrecLand_Companion.cpp -> AC_PrecLand_Companion.cpp.0.o}
(run with -v to display more information)
-> task in 'objs/AC_WPNav' failed (exit status 1):
{task 139806281336400: cxx AC_Loiter.cpp -> AC_Loiter.cpp.0.o}
(run with -v to display more information)
-> task in 'objs/AC_AttitudeControl' failed (exit status 1):
{task 139806281791952: cxx AC_AttitudeControl_Heli.cpp -> AC_AttitudeControl_Heli.cpp.0.o}
(run with -v to display more information)
-> task in 'objs/AC_PrecLand' failed (exit status 1):
{task 139806281335504: cxx AC_PrecLand.cpp -> AC_PrecLand.cpp.0.o}
(run with -v to display more information)
-> task in 'objs/AC_PrecLand' failed (exit status 1):
{task 139806281335760: cxx AC_PrecLand_IRLock.cpp -> AC_PrecLand_IRLock.cpp.0.o}
(run with -v to display more information)
-> task in 'objs/AC_PID' failed (exit status 1):
{task 139806281335120: cxx AC_PID.cpp -> AC_PID.cpp.0.o}
(run with -v to display more information)
-> task in 'objs/AC_PrecLand' failed (exit status 1):
{task 139806281335888: cxx AC_PrecLand_SITL.cpp -> AC_PrecLand_SITL.cpp.0.o}
(run with -v to display more information)
-> task in 'objs/AC_AutoTune' failed (exit status 1):
{task 139806281391568: cxx AC_AutoTune.cpp -> AC_AutoTune.cpp.0.o}
(run with -v to display more information)
-> task in 'objs/AC_PrecLand' failed (exit status 1):
{task 139806281336016: cxx AC_PrecLand_SITL_Gazebo.cpp -> AC_PrecLand_SITL_Gazebo.cpp.0.o}
(run with -v to display more information)
-> task in 'objs/AC_WPNav' failed (exit status 1):
{task 139806281336528: cxx AC_WPNav.cpp -> AC_WPNav.cpp.0.o}
(run with -v to display more information)
-> task in 'objs/AC_AttitudeControl' failed (exit status 1):
{task 139806281792848: cxx ControlMonitor.cpp -> ControlMonitor.cpp.0.o}
(run with -v to display more information)
SIM_VEHICLE: Build failed
SIM_VEHICLE: Killing tasks