beginner Build problem

[DrorSegev]

Hi,
When building stella_vslam I'm getting the following error:

home/dor/ddd/stella_vslam/src/stella_vslam/data/marker.cc:10:26: error: ‘mutex’ is not a member of ‘std’
10 | std::lock_guardstd::mutex lock(mtx_position_);
| ^~~~~

I have this alias defined: g++='g++ --std=c++11'
My gcc version is 9.4.0

Thanks

[DrorSegev]

Update:
I've added #include in marker.h
Now the next build error is:
home/dor/ddd/stella_vslam/src/stella_vslam/marker_detector/base.h:27:21: error: ‘shared_ptr’ in namespace ‘std’ does not name a template type
27 | const std::shared_ptr<marker_model::base>& marker_model,
|
Will Continue update

[DrorSegev]

I've added #include in marker_detector/base.h
and build OK

[ymd-stella]

Please create a pull request if you would like to do so.

[ymd-stella]

I have fixed it.

[ymd-stella]

@DrorSegev
I estimate that depending on the version of OpenCV you are using, it will not cause errors. May I ask what version of OpenCV you are using so that I can test?

[DrorSegev]

opencv-3.4.0

[DrorSegev]

BTW - what format is the map-db file is stored?
Dr

[ymd-stella]

MessagePack or sqlite3. default is MessagePack.

[ymd-stella]

When building stella_vslam I'm getting the following error:

home/dor/ddd/stella_vslam/src/stella_vslam/data/marker.cc:10:26: error: ‘mutex’ is not a member of ‘std’
10 | std::lock_guardstd::mutex lock(mtx_position_);
| ^~~~~

In my environment, I was also getting the following error

Is it the same in your environment?

In file included from /openvslam/src/stella_vslam/data/marker.cc:1:
/openvslam/src/stella_vslam/data/marker.h:37:18: error: 'mutex' in namespace 'std' does not name a type
   37 |     mutable std::mutex mtx_position_;
      |                  ^~~~~

[AMRitecs]

In my case, the compile error was solved by adding missing headers to the following files:
stella_vslam/data/marker.h
#include < thread>
#include < mutex>

stella_vslam/marker_detector/base,h
#include < memory>