Installation issue

Mon May 16, 2011 9:07 pm

Hi all,

I'm trying to install Eigen3 on my Ubuntu machine and I think I'm making a dumb mistake. I follow the instructions in the INSTALL file, but get MANY errors after running cmake <source_dir> (I do use the correct folder name here). The errors take this form:

CMake Error at unsupported/cmake/EigenTesting.cmake:16 (add_executable):
add_executable cannot create target "dontalign_6" because another target
with the same name already exists. The existing target is an executable
created in source directory "/opt/eigen/test". See documentation for
policy CMP0002 for more details.
Call Stack (most recent call first):
unsupported/cmake/EigenTesting.cmake:130 (ei_add_test_internal)
unsupported/test/CMakeLists.txt:122 (ei_add_test)

Any ideas what I'm missing?

Thanks
~Robin

rheld Registered Member Posts 2 Karma 0 OS	Installation issue Mon May 16, 2011 9:07 pm Hi all, I'm trying to install Eigen3 on my Ubuntu machine and I think I'm making a dumb mistake. I follow the instructions in the INSTALL file, but get MANY errors after running cmake <source_dir> (I do use the correct folder name here). The errors take this form: CMake Error at unsupported/cmake/EigenTesting.cmake:16 (add_executable): add_executable cannot create target "dontalign_6" because another target with the same name already exists. The existing target is an executable created in source directory "/opt/eigen/test". See documentation for policy CMP0002 for more details. Call Stack (most recent call first): unsupported/cmake/EigenTesting.cmake:130 (ei_add_test_internal) unsupported/test/CMakeLists.txt:122 (ei_add_test) Any ideas what I'm missing? Thanks ~Robin
ggael Moderator Posts 3447 Karma 19 OS	Re: Installation issue Tue May 17, 2011 4:38 pm that's very strange, are you sure you ran cmake from a fresh empty directory, e.g.: cd <path_to_eigen_source> mkdir build cd build cmake .. . . .
rheld Registered Member Posts 2 Karma 0 OS	Re: Installation issue Tue May 17, 2011 8:52 pm Yep, I followed exactly those steps when I got the errors. The good news is that I was just able to install the package as a debian package.

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