Undefined reference to `Ipopt::IpoptApplication::IpoptApplication(bool, bool)'

[Jackhe96]

I am completely new to cppad and I apologize if this is a stupid question. I have been trying to install cppad and ipopt for a day now and it's getting really frustrating as I don't know how to solve this problem. I am trying to use Cppad in my program but I run into the error:

In function void CppAD::ipopt::solve<CppAD::vector<double>, (anonymous namespace)::FG_eval>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, CppAD::vector<double> const&,CppAD::vector<double> const&, CppAD::vector<double> const&, CppAD::vector<double> const&, CppAD::vector<double> const&, (anonymous namespace)::FG_eval&, CppAD::ipopt::solve_result<CppAD::vector<double> >&)': ipopt_test.cpp:(.text+0xe0a): undefined reference to Ipopt::IpoptApplication::IpoptApplication(bool, bool)'
collect2: error: ld returned 1 exit status

I can't find many resources online of people having the same problem. To check if it is my program I tried running the following example but I get the same error. Wondering if you guys know about it

[bradbell]

It appears that you are not including the ipopt library on your in the command that is creating the executable. It might help to run a simple ipopt example, that does not is CppAD, to ensure it is properly installed and the linking works.

…

I am completely new to cppad and I apologize if this is a stupid question. I have been trying to install cppad and ipopt for a day now and it's getting really frustrating as I don't know how to solve this problem. I am trying to use Cppad in my program but I run into the error: In function `void CppAD::ipopt::solve<CppAD::vector<double>, (anonymous namespace)::FG_eval>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, CppAD::vector<double> const&,CppAD::vector<double> const&, CppAD::vector<double> const&, CppAD::vector<double> const&, CppAD::vector<double> const&, (anonymous namespace)::FG_eval&, CppAD::ipopt::solve_result<CppAD::vector<double> >&)': ipopt_test.cpp:(.text+0xe0a): undefined reference to `Ipopt::IpoptApplication::IpoptApplication(bool, bool)' collect2: error: ld returned 1 exit status I can't find many resources online of people having the same problem. To check if it is my program I tried running the following [example]( https://www.coin-or.org/CppAD/Doc/ipopt_nlp_get_started.cpp.htm) but I get the same error. Wondering if you guys know about it -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: #39

[bradbell]

Please close this issue if the answer above solved this problem.

[lxjlu]

I also have the same question. How do you solve it in the end? Thanks!

[Jackhe96]

@lxjlu It was my fault, I was using ROS and the cmakelists.txt file was not configured correctly

[hichamhendy]

So what was the right configuration in CMakeList looks like?

[lxjlu]

@lxjlu It was my fault, I was using ROS and the cmakelists.txt file was not configured correctly

I also used it for the first time, and I understand whether it is a problem in the link section. I am directly g++ -o example example.cpp. Is there any problem, thank you.

[bradbell]

I assume you are using Ipopt and have installed it.

If on your cmake command line you choose cmake_verbose_makefile eqaul to YES
https://coin-or.github.io/CppAD/doc/cmake.htm#cmake_verbose_makefile

and you also specify ipopt_prefix
https://coin-or.github.io/CppAD/doc/cmake.htm#package_prefix

then during the make check
https://coin-or.github.io/CppAD/doc/cmake.htm#make%20check

you should see how CppAD links in ipopt.

[lxjlu]

I assume you are using Ipopt and have installed it.

If on your cmake command line you choose cmake_verbose_makefile eqaul to YES
https://coin-or.github.io/CppAD/doc/cmake.htm#cmake_verbose_makefile

and you also specify ipopt_prefix
https://coin-or.github.io/CppAD/doc/cmake.htm#package_prefix

then during the make check
https://coin-or.github.io/CppAD/doc/cmake.htm#make%20check

you should see how CppAD links in ipopt.

Thanks, I will check it carefully.

[bradbell]

It will be easier to see if you only check to ipopt_solve examples; i.e., use
make check_example_ipopt_solve

[tu-trinh]

@Jackhe96 Hi, I'm running into the exact same error. How did you fix your cmakelists.txt?
I just freshly installed ipopt and #included cppad/ipopt/solve.hpp as well as Interfaces/IpIpoptApplication.hpp and using Ipopt::IpoptApplication, which I believe is where IpoptApplication comes from.

[bradbell]

@tu-trinh By the exact same error do you mean ?

undefined reference to Ipopt::IpoptApplication::IpoptApplication(bool, bool)'
collect2: error: ld returned 1 exit status

[DanielrdMorais]

I have the same problem:
undefined reference to `Ipopt::IpoptApplication::IpoptApplication(bool, bool)'
collect2: error: ld returned 1 exit status

[bradbell]

Is the undefined reference during the testing of CppAD ?
Perhaps it would help to look at the following discussion: #103

[chenfei8888]

L

hello，target_link_libraries(main ipopt) is used in my cmake file，but it still hasn't been solved.

my cmakelist is:

cmake_minimum_required(VERSION 3.0.0)
project(ipopt_tests VERSION 0.1.0)
list(APPEND CMAKE_MODULE_PATH "/usr/local/lib/cmake")
add_definitions(-std=c++11 -O3)

set(CXX_FLAGS "-Wall")
set(CMAKE_CXX_FLAGS, "${CXX_FLAGS}")

set(sources src/ipopt_tests.cpp)

include_directories(/usr/include)
link_directories(/usr/local/lib /usr/local/lib/packconfig)
include_directories(/usr/include/eigen3)

add_executable(ipopt_test ${sources})

target_link_libraries(ipopt_test ipopt)

[chenfei8888]

The problem has been solved, the vscode environment is not working.
launch.js should be set up

[bradbell]

Can accomplish the necessary cmake setting using the distributed version of CMakeLists.txt and the instructions on ?
https://coin-or.github.io/CppAD/doc/cmake.htm

[chenfei8888]

Yes, I've set up CMakeList.txt. Thank you very much.

[chenfei8888]

My question has been solved by CMakeList and .launch file

[hichamhendy]

I am still getting the following error
In function void CppAD::put_check_for_nan(CppAD::vector const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator >&)':
MPC.cpp:(.text._ZN5CppAD17put_check_for_nanIdEEvRKNS_6vectorIT_EERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE[_ZN5CppAD17put_check_for_nanIdEEvRKNS_6vectorIT_EERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE]+0x64): undefined reference to CppAD::local::temp_file[abi:cxx11]()'

I ain't checking out where is the problem
this how it looks like in my CMake
project(ipopt_tests)

cmake_minimum_required (VERSION 3.5)

add_definitions(-std=c++11)

set(CXX_FLAGS "-Wall")
set(CMAKE_CXX_FLAGS "${CXX_FLAGS}")

set(sources src/ipopt_test.cpp src/main.cpp)

include_directories(src/Eigen-3.3)
include_directories(/usr/local/include)
link_directories(/usr/local/lib)

add_executable(ipopt_tests ${sources})

target_link_libraries(ipopt_tests ipopt python2.7)

[rtheta02043]

Same problem, is this solved @hichamhendy ?

[hichamhendy]

Yeah. The problem lied in the mathematical formulation of the optimisation problem. I corrected it and got it running.

[rtheta02043]

Okay... thanks!

[rtheta02043]

@hichamhendy I am guessing you are referring to MPC.cpp file. Which part of the MPC formulation is causing this problem could you explain please?

[hichamhendy]

no I am using that for quadcopter

[bradbell]

I just fixed a problem that came up when building the ipopt tests and ipopt is the only optional package. (Testing this was motivated by your message above); see 03-04 on
https://cppad.readthedocs.io/en/latest/whats_new_23.html#whats-new-23-mm-dd-03-04

Please test the current master and see if it fixes your problem.

[zhumingpassional]

I also encountered the same problem.

@hichamhendy could you pls share the simple demo codes with me?

[bradbell]

Try the following on your machine and see if you get an error message ?

1. git clone https://github.com/coin-or/CppAD.git cppad.git
2. cd cppad.git
3. bin/get_ipopt.sh
4. export PKG_CONFIG_PATH="$(pwd)/build/prefix/lib/pkgconfig"
5. cd build
6. cmake -D include_ipopt=true ..
7. make check_example_ipopt_solve

I did not get any errors and got the final result:

Begin test group example/ipopt_solve
get_started         OK
ode_inverse         OK
retape              OK
memory_leak         OK
All 4 tests passed.
End test group example/ipopt_solve
[100%] Built target check_example_ipopt_solve