Not able to install towr using catkin build on ubuntu 14.04. " A required package was not found" error is coming.

[neerajpal]

Errors << ifopt:cmake /home/neeraj/leggedrobot/logs/ifopt/build.cmake.006.log
CMake Error at /usr/local/share/cmake-3.14/Modules/FindPkgConfig.cmake:457 (message):
A required package was not found
Call Stack (most recent call first):
/usr/local/share/cmake-3.14/Modules/FindPkgConfig.cmake:642 (_pkg_check_modules_internal)
ifopt_ipopt/cmake/FindIPOPT.cmake:99 (pkg_check_modules)
ifopt_ipopt/CMakeLists.txt:2 (find_package)

cd /home/neeraj/leggedrobot/build/ifopt; catkin build --get-env ifopt | catkin env -si /usr/local/bin/cmake /home/neeraj/leggedrobot/src/ifopt --no-warn-unused-cli -DCMAKE_INSTALL_PREFIX=/home/neeraj/leggedrobot/devel -DCMAKE_BUILD_TYPE=Release; cd -
...............................................................................
Failed << ifopt:cmake [ Exited with code 1 ]
Failed <<< ifopt [ 0.3 seconds ]
Abandoned <<< towr [ Unrelated job failed ]
Abandoned <<< towr_ros [ Unrelated job failed ]
[build] Summary: 0 of 3 packages succeeded.

[awinkler]

Make sure to install:
sudo apt-get install coinor-libipopt-dev

However, the IPOPT package for 14.04 has a bug, so it's better to install IPOPT manually for cmake to find.