Problem with PyAlembic installation

[Zixuan Song]

Hey I met this error when trying to build PyAlembic(1.8.5).

─(14:59:34)──> cmake ..                                                                                                                                                                 
-- CMAKE SYSTEM NAME: Linux
Defaulting CMAKE_CXX_STANDARD to 14
-- The install dir is /usr/local
-- Found package Imath
-- Found Python 3.8.16
-- Found package Imath using: Imath::PyImath_Python3_8
-- BOOST INCLUDE DIRS: /usr/local/include
-- BOOST LIBRARIES: Boost::python
CMake Error at python/PyAlembic/Tests/CMakeLists.txt:49 (GET_TARGET_PROPERTY):
  get_target_property() called with non-existent target
  "Imath::PyImath_Python3_8".


-- Skipping AbcConvert: it requires USE_HDF5

   * Alembic Configuration              ===
   * USE_ARNOLD                         OFF
   * USE_BINARIES                       ON
   * USE_EXAMPLES                       OFF
   * USE_HDF5                           OFF
   * USE_MAYA                           OFF
   * USE_PRMAN                          OFF
   * USE_PYALEMBIC                      ON
   * USE_STATIC_BOOST                   OFF
   * USE_STATIC_HDF5                    OFF
   * USE_TESTS                          ON
   * ALEMBIC_ILMBASE_LINK_STATIC        OFF
   * ALEMBIC_SHARED_LIBS                ON
   * ALEMBIC_DEBUG_WARNINGS_AS_ERRORS   ON
   * PYALEMBIC_PYTHON_MAJOR             3
   * DOCS_PATH                          OFF
-- Configuring incomplete, errors occurred!
See also "/home/ubuntu/alembic-1.8.5/build/CMakeFiles/CMakeOutput.log".
See also "/home/ubuntu/alembic-1.8.5/build/CMakeFiles/CMakeError.log".

I've already built Boost(1.57.0) and Imath with python bindings. Tried to rebuild but it still didn't work. Can anyone figure out what problem it is? Where can I find the latest install guide of the dependencies? Thanks a lot!

[Lucas Miller]

What version of Imath did you build?

In your lib/cmake/Imath/ImathTargets-release.cmake you should see a set_target_properties for Imath::PyImath_Python3_8  one of which is IMPORTED_LOCATION_RELEASE which the python unit tests need so that they know where they can find PyImath for importing.

An example of our set_target_properties (built against python3.9) looks like:

set_target_properties(Imath::PyImath_Python3_9 PROPERTIES   IMPORTED_LINK_DEPENDENT_LIBRARIES_RELEASE "Python3::Python"   IMPORTED_LOCATION_RELEASE "${_IMPORT_PREFIX}/lib64/libPyImath_Python3_9-3_1.so.29.4.0"   IMPORTED_SONAME_RELEASE "libPyImath_Python3_9-3_1.so.29" 

  )

Lucas

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