when operator slover class, an error occured, it shows that there is a undefined reference

CMakeFiles/main.dir/main.cpp.o：in the function‘testQP()’：
main.cpp:(.text+0x5b5)：for‘OsqpEigen::Solver::Solver()’an undefined reference
CMakeFiles/main.dir/main.cpp.o：in the function‘std::default_delete::operator()(OsqpEigen::Settings*) const’：
main.cpp:(.text._ZNKSt14default_deleteIN9OsqpEigen8SettingsEEclEPS1_[_ZNKSt14default_deleteIN9OsqpEigen8SettingsEEclEPS1_]+0x1e)：‘OsqpEigen::Settings::~Settings()’an undefined reference
CMakeFiles/main.dir/main.cpp.o：in the function‘std::default_delete::operator()(OsqpEigen::Data*) const’：
main.cpp:(.text._ZNKSt14default_deleteIN9OsqpEigen4DataEEclEPS1_[_ZNKSt14default_deleteIN9OsqpEigen4DataEEclEPS1_]+0x1e)：‘OsqpEigen::Data::~Data()’an undefined reference
collect2: error: ld returned 1 exit status
src/CMakeFiles/main.dir/build.make:120: recipe for target '../bin/main' failed
make[2]: *** [../bin/main] Error 1
CMakeFiles/Makefile2:85: recipe for target 'src/CMakeFiles/main.dir/all' failed
make[1]: *** [src/CMakeFiles/main.dir/all] Error 2
Makefile:83: recipe for target 'all' failed
make: *** [all] Error 2

Start by reproducing the failure with make and inspect main.cpp around testQP(), along with the project's CMake configuration. Check how the main target is linked against OsqpEigen, then confirm that the build completes without the reported undefined references.

Written by the indexing model from the issue text.