Hi, so I was doing the ROS Basics course with no problem, until I arrived at exercise 4.3 of making the turtlebot avoid the wall. However I had a problem compiling the project, since catkin_make is giving me an error. I tried searching on the internet and in this forum with no luck. I did manage to build and compile with catkin build and it ran fine, but the bot correcting the quiz uses catkin_make, so it fails there.
Here is last lines of the console output:
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/noetic/share/xmlrpcpp
- noetic/noetic/share/xmlrpcpp
- noetic/share/xmlrpcpp
- share/xmlrpcpp
CMake Error at /opt/ros/noetic/share/catkin/cmake/safe_execute_process.cmake:11 (message):
execute_process(/home/user/catkin_ws/build/catkin_generated/env_cached.sh
"/usr/bin/python3" "/usr/lib/python3/dist-packages/em.py" "--raw-errors"
"-F" "/home/user/catkin_ws/build/catkin_generated/order_packages.py" "-o"
"/home/user/catkin_ws/build/catkin_generated/order_packages.cmake"
"/opt/ros/noetic/share/catkin/cmake/em/order_packages.cmake.em") returned
error code 1
Call Stack (most recent call first):
/opt/ros/noetic/share/catkin/cmake/em_expand.cmake:25 (safe_execute_process)
/opt/ros/noetic/share/catkin/cmake/catkin_workspace.cmake:35 (em_expand)
CMakeLists.txt:69 (catkin_workspace)
-- Configuring incomplete, errors occurred!
See also "/home/user/catkin_ws/build/CMakeFiles/CMakeOutput.log".
See also "/home/user/catkin_ws/build/CMakeFiles/CMakeError.log".
Invoking "cmake" failed
Here is CMakeError.log:
Performing C SOURCE FILE Test CMAKE_HAVE_LIBC_PTHREAD failed with the following output:
Change Dir: /home/user/catkin_ws/build/CMakeFiles/CMakeTmp
Run Build Command(s):/usr/bin/make cmTC_5092c/fast && /usr/bin/make -f CMakeFiles/cmTC_5092c.dir/build.make CMakeFiles/cmTC_5092c.dir/build
make[1]: Entering directory '/home/user/catkin_ws/build/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_5092c.dir/src.c.o
/usr/bin/cc -DCMAKE_HAVE_LIBC_PTHREAD -o CMakeFiles/cmTC_5092c.dir/src.c.o -c /home/user/catkin_ws/build/CMakeFiles/CMakeTmp/src.c
Linking C executable cmTC_5092c
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_5092c.dir/link.txt --verbose=1
/usr/bin/cc -DCMAKE_HAVE_LIBC_PTHREAD -rdynamic CMakeFiles/cmTC_5092c.dir/src.c.o -o cmTC_5092c
/usr/bin/ld: CMakeFiles/cmTC_5092c.dir/src.c.o: in function `main':
src.c:(.text+0x46): undefined reference to `pthread_create'
/usr/bin/ld: src.c:(.text+0x52): undefined reference to `pthread_detach'
/usr/bin/ld: src.c:(.text+0x63): undefined reference to `pthread_join'
collect2: error: ld returned 1 exit status
make[1]: *** [CMakeFiles/cmTC_5092c.dir/build.make:87: cmTC_5092c] Error 1
make[1]: Leaving directory '/home/user/catkin_ws/build/CMakeFiles/CMakeTmp'
make: *** [Makefile:121: cmTC_5092c/fast] Error 2
Source file was:
#include <pthread.h>
void* test_func(void* data)
{
return data;
}
int main(void)
{
pthread_t thread;
pthread_create(&thread, NULL, test_func, NULL);
pthread_detach(thread);
pthread_join(thread, NULL);
pthread_atfork(NULL, NULL, NULL);
pthread_exit(NULL);
return 0;
}
Determining if the function pthread_create exists in the pthreads failed with the following output:
Change Dir: /home/user/catkin_ws/build/CMakeFiles/CMakeTmp
Run Build Command(s):/usr/bin/make cmTC_95b04/fast && /usr/bin/make -f CMakeFiles/cmTC_95b04.dir/build.make CMakeFiles/cmTC_95b04.dir/build
make[1]: Entering directory '/home/user/catkin_ws/build/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_95b04.dir/CheckFunctionExists.c.o
/usr/bin/cc -DCHECK_FUNCTION_EXISTS=pthread_create -o CMakeFiles/cmTC_95b04.dir/CheckFunctionExists.c.o -c /usr/share/cmake-3.16/Modules/CheckFunctionExists.c
Linking C executable cmTC_95b04
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_95b04.dir/link.txt --verbose=1
/usr/bin/cc -DCHECK_FUNCTION_EXISTS=pthread_create -rdynamic CMakeFiles/cmTC_95b04.dir/CheckFunctionExists.c.o -o cmTC_95b04 -lpthreads
/usr/bin/ld: cannot find -lpthreads
collect2: error: ld returned 1 exit status
make[1]: *** [CMakeFiles/cmTC_95b04.dir/build.make:87: cmTC_95b04] Error 1
make[1]: Leaving directory '/home/user/catkin_ws/build/CMakeFiles/CMakeTmp'
make: *** [Makefile:121: cmTC_95b04/fast] Error 2
Thanks for the help in advance,
João Pinhal