Hi, I just checked the MitkMatchPointRegistration module and it hasn’t a direct nor transitive dependency to Eigen. I guess you modified MITK somehow? Even in other modules that depend on Eigen there’s just the legacy notation “Eigen”, not “Eigen3::Eigen”.
Best, Stefan From: enjoy3d...@gmail.com [mailto:enjoy3d...@gmail.com] Sent: Sunday, February 2, 2020 1:06 PM To: mitk-users@lists.sourceforge.net Subject: [mitk-users] CMaker Error: Target "***" links to target "Eigen3::Eigen" but the target was not found. Dear MITKers: I was trying to build MITK (clone lastest) on Mac OS Catalina (10.15.2) using CMake 3.16.2. I have gotten hundreds of errors similar to the following: .... -- Configuring done CMake Error at CMake/mitkFunctionCreateModule.cmake:463 (add_library): Target "MitkMatchPointRegistration" links to target "Eigen3::Eigen" but the target was not found. Perhaps a find_package() call is missing for an IMPORTED target, or an ALIAS target is missing? Call Stack (most recent call first): Modules/MatchPointRegistration/CMakeLists.txt:1 (MITK_CREATE_MODULE) ..... Moreover, each error has appeared 7 times continuously. The default version of Eigen in MITK is 3.2.8. In order to get the newest version of Eigen(3.3.7), I have tried to two ways: 1. brew install eigen, then changed the "exteral eigen dir to installed/path; 2. modify the URL in the source file MITK/CMakeExternals/Eigen.cmake. However, I got the same errors. Thanks in advance Maxwell
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