RangeISAMExample Error 'gtsam::ValuesKeyDoesNotExist'

[KierenSama2]

I am fairly new to GTSAM and am trying to run the RangeISAMExample.cpp. When I run the code as is I get the following error:
[100%] Built target RangeISAMExample_plaza2 terminate called after throwing an instance of 'gtsam::ValuesKeyDoesNotExist' what(): Attempting to at the key "L2", which does not exist in the Values. Aborted (core dumped) make[3]: *** [examples/CMakeFiles/RangeISAMExample_plaza2.run.dir/build.make:57: examples/CMakeFiles/RangeISAMExample_plaza2.run] Error 134 make[2]: *** [CMakeFiles/Makefile2:21082: examples/CMakeFiles/RangeISAMExample_plaza2.run.dir/all] Error 2 make[1]: *** [CMakeFiles/Makefile2:21089: examples/CMakeFiles/RangeISAMExample_plaza2.run.dir/rule] Error 2 make: *** [Makefile:8556: RangeISAMExample_plaza2.run] Error 2

[dellaert]

You are right. The initialization was totally wrong. Probably was originally the smaller plaza1 dataset.
I cleaned up this old example up and fixed this in #1131
I did not check whether the result makes sense. Maybe you can visualize from that branch and paste an image here?

[KierenSama2]

@dellaert thank you for the quick reply. After pulling a different error occurred.

`[100%] Built target RangeISAMExample_plaza2
terminate called after throwing an instance of 'gtsam::IndeterminantLinearSystemException'
what():
Indeterminant linear system detected while working near variable
3086 (Symbol: 3086).

Thrown when a linear system is ill-posed. The most common cause for this
error is having underconstrained variables. Mathematically, the system is
underdetermined. See the GTSAM Doxygen documentation at
http://borg.cc.gatech.edu/ on gtsam::IndeterminantLinearSystemException for
more information.
Aborted (core dumped)
`

[dellaert]

Hmm. I don’t have this. Try with a different random seed for rng ?

[KierenSama2]

Error still occurs with other random seeds. The same instance is thrown but is detected near other variables
Indeterminant linear system detected while working near variable 5476377146882523139 (Symbol: L3).
Will provide an update if solved.

[KierenSama2]

Still not solved, do you think it has something to do with the config @dellaert ?
- ================ Configuration Options ====================== -- CMAKE_CXX_COMPILER_ID type : GNU -- CMAKE_CXX_COMPILER_VERSION : 9.3.0 -- CMake version : 3.16.3 -- CMake generator : Unix Makefiles -- CMake build tool : /usr/bin/make -- Build flags -- Build Tests : Enabled -- Build examples with 'make all' : Enabled -- Build timing scripts with 'make all' : Disabled -- Build Docs : Enabled -- Build shared GTSAM libraries : Enabled -- Put build type in library name : Enabled -- Build libgtsam_unstable : Enabled -- Build GTSAM unstable Python : Enabled -- Build MATLAB Toolbox for unstable : Disabled -- Build for native architecture : Enabled -- Build type : Release -- C compilation flags : -O3 -DNDEBUG -- C++ compilation flags : -O3 -DNDEBUG -- GTSAM_COMPILE_FEATURES_PUBLIC : cxx_std_11 -- GTSAM_COMPILE_OPTIONS_PUBLIC : -march=native -- GTSAM_COMPILE_DEFINITIONS_PUBLIC : -- GTSAM_COMPILE_OPTIONS_PUBLIC_DEBUG : -- GTSAM_COMPILE_DEFINITIONS_PUBLIC_DEBUG : -- GTSAM_COMPILE_OPTIONS_PUBLIC_RELEASE : -- GTSAM_COMPILE_DEFINITIONS_PUBLIC_RELEASE : -- GTSAM_COMPILE_OPTIONS_PUBLIC_TIMING : -- GTSAM_COMPILE_DEFINITIONS_PUBLIC_TIMING : -- GTSAM_COMPILE_OPTIONS_PUBLIC_PROFILING : -- GTSAM_COMPILE_DEFINITIONS_PUBLIC_PROFILING : -- GTSAM_COMPILE_OPTIONS_PUBLIC_RELWITHDEBINFO : -- GTSAM_COMPILE_DEFINITIONS_PUBLIC_RELWITHDEBINFO : -- GTSAM_COMPILE_OPTIONS_PUBLIC_MINSIZEREL : -- GTSAM_COMPILE_DEFINITIONS_PUBLIC_MINSIZEREL : -- Use System Eigen : OFF (Using version: 3.3.7) -- Use Intel TBB : Yes (Version: 2020.1) -- Eigen will use MKL : MKL not found -- Eigen will use MKL and OpenMP : OpenMP found but GTSAM_WITH_EIGEN_MKL is disabled -- Default allocator : TBB -- Cheirality exceptions enabled : YES -- Build with ccache : Yes -- Packaging flags -- CPack Source Generator : TGZ -- CPack Generator : TGZ -- GTSAM flags -- Quaternions as default Rot3 : Disabled -- Runtime consistency checking : Disabled -- Rot3 retract is full ExpMap : Enabled -- Pose3 retract is full ExpMap : Enabled -- Allow features deprecated in GTSAM 4.1 : Enabled -- Metis-based Nested Dissection : Enabled -- Use tangent-space preintegration : Enabled -- MATLAB toolbox flags -- Install MATLAB toolbox : Disabled -- Python toolbox flags -- Build Python module with pybind : Disabled -- =============================================================== -- Configuring done -- Generating done

[dellaert]

Turns out it was a parsing error in c++, see #1131 . Waiting on @jerredchen to approve and merge that PR, which now also has a notebook example with graphics. See PR for more details.