Multiple declaration of class ADFun about cppadcodegen HOT 4 CLOSED

Hello Alex,

I'm using ubuntu 18.04 and I couldn't reproduce the issue.
Which version of CppAD and CppADCodeGen are you using?
How did you install the packages?

Could you please try the following steps:

sudo apt install cppad
git clone https://github.com/joaoleal/CppADCodeGen.git
cd CppADCodeGen
mkdir build
cd build
ccmake .. # or cmake ..
cd example
make example_lagrangian

I see the following output:

joao@megafox:~/Development/CppADCodeGen/build/example$ make >example_lagrangian
Building CXX object example/CMakeFiles/lagrangian.dir/lagrangian.cpp.o
Linking CXX executable lagrangian
Built target lagrangian
(0,0) 4
(0,2) 6.5
(1,1) 6
(2,0) 6.5
(2,2) 8
Built target example_lagrangian

from cppadcodegen.

Thanks for the instructions. I was able to get everything running by following your continuous integration code. What i found is that now,
cmake -DCPPAD_HOME=$CPPAD_HOME ..
does work and i can compile the examples. But just using the cppAD version in my usr/include folder cmake .. does produce an error, now actually a different error.

/Documents/GitHub/CppADCodeGen2/build/example$ make example_lagrangian
Scanning dependencies of target lagrangian
[100%] Building CXX object example/CMakeFiles/lagrangian.dir/lagrangian.cpp.o
In file included from /home/orca/Documents/GitHub/CppADCodeGen2/include/cppad/cg/extra/extra.hpp:20:0,
from /home/orca/Documents/GitHub/CppADCodeGen2/include/cppad/cg/cppadcg.hpp:151,
from /home/orca/Documents/GitHub/CppADCodeGen2/include/cppad/cg.hpp:18,
from /home/orca/Documents/GitHub/CppADCodeGen2/example/lagrangian.cpp:18:
/home/orca/Documents/GitHub/CppADCodeGen2/include/cppad/cg/extra/sparse_forjac_hessian.hpp: In function ‘size_t CppAD::cg::colorForwardJacobianHessian(const CppAD::ADFun&, const VectorSet&, const VectorSet&, CppAD::cg::SparseForjacHessianWork&)’:
/home/orca/Documents/GitHub/CppADCodeGen2/include/cppad/cg/extra/sparse_forjac_hessian.hpp:247:38: error: ‘local’ has not been declared
using SparsityPattern = typename local::internal_sparsity<Set_type>::pattern_type;

and a lot more errors all related to the sparse functionality.

from cppadcodegen.

This appears to be related to #7 (comment)
The version of CppAD in 16.04 (https://packages.ubuntu.com/xenial/cppad) is not compatible with the current version of CppADCodeGen.
You could consider installing the version from 18.04 (https://packages.ubuntu.com/bionic/cppad).

from cppadcodegen.

Installing the 2017 version of CppAD in a local folder as done in the CI of the project and then make CppADCodeGen using cmake -DCPPAD_HOME=$CPPAD_HOME .. solved the issue for me.
But I assume updating to 18.04 is anyhow a good idea.

from cppadcodegen.