master branch doesn't have setup.py file

[shubham-monarch]

I need to work with the commit #89ce83. To make it work, I have checked out to the appropriate COLMAP version, and built + installed it.

However, I am facing issue installing pycolmap for the aforementioned commit. I have been using pip install . but that doesn't seem to be working. More specifically, I am getting the error —

The link interface of target "colmap::colmap_scene" contains: SQLite::SQLite3 but the target was not found. Possible reasons include: * There is a typo in the target name. * A find_package call is missing for an IMPORTED target. * An ALIAS target is missing.

The repo also doesn't seem to contain any setup.py file corresponding to the commit. What am I missing?

Also, probably a very navie question — since setup.py is missing, how come pip install . is working in the first place?

[sarlinpe]

• We need to update the doc: the commit that you reference requires COLMAP 3.9. Does the error still occur at that point?
• We recently switched from setup.py to pyproject.toml, which is now the recommended way of managing builds. I think that this requires pip>=10.0.

[shubham-monarch]

I checked out to COLMAP 3.9 and built and installed it. On running pip install . , I am still getting the same error —

CMake Error at /usr/local/share/colmap/colmap-targets.cmake:138 (set_target_properties):
    The link interface of target colmap::colmap_scene contains:
      SQLite::SQLite3
    but the target was not found.  Possible reasons include:
      - There is a typo in the target name.
      - A find_package call is missing for an IMPORTED target.
      - An ALIAS target is missing.
 Call Stack (most recent call first):
    /usr/local/share/colmap/colmap-config.cmake:105 (include)
    CMakeLists.txt:21 (find_package)

  CMake Error at /usr/local/share/colmap/colmap-targets.cmake:159 (set_target_properties):
    The link interface of target "colmap::colmap_util" contains:
      SQLite::SQLite3
    but the target was not found.  Possible reasons include:
      - There is a typo in the target name.
      - A find_package call is missing for an IMPORTED target.
      - An ALIAS target is missing.
  Call Stack (most recent call first):
    /usr/local/share/colmap/colmap-config.cmake:105 (include)
    CMakeLists.txt:21 (find_package)
   Generating done (0.0s)
  CMake Generate step failed.  Build files cannot be regenerated correctly.
  CMake configuration failed
  ERROR: Failed building wheel for pycolmap

If I comment out SQLite:SQLite3 from set_target_properties(colmap::colmap_scene) and (colmap::colmap_util) inside the colmap-targets.cmake file, pip install . finishes successfully. However, import pycolmap doesn't work in that case.

Also, when I run pip install . --verbose , somewhere in the print log, I do see

-- Found SQLite3
  --   Includes : /usr/include
  --   Libraries : /usr/lib/x86_64-linux-gnu/libsqlite3.so

which makes me believe it is not a missing SQLite library issue.

[sarlinpe]

Can you include the full log? Can you try to swap the 2 include(...) lines in /usr/local/share/colmap/colmap-config.cmake: https://github.com/colmap/colmap/blob/71cebde85b5ce290c93f67326eea7c1b1c0cea97/cmake/colmap-config.cmake.in#L81-L82

[shubham-monarch]

Already tried swapping those 2 lines. Doesn't help.
I am attaching the complete log for your reference.
log.txt

[sarlinpe]

-- Found SQLite3
  --   Includes : /usr/include
  --   Libraries : /usr/lib/x86_64-linux-gnu/libsqlite3.so

is the log printed by the old, broken FindSQLite3.cmake shipped in COLMAP <= 3.8; CMake>=3.14 ships it own FindSQLite3.cmake, which properly defines the SQLite::SQLite3 target: https://cmake.org/cmake/help/latest/module/FindSQLite3.html Maybe you didn't properly uninstall 3.8 and the file /usr/local/share/colmap/cmake/FindSQLite3.cmake remains?

[shubham-monarch]

@sarlinpe what would be the best way to uninstall colmap 3.8?

[sarlinpe]

This should work:

rm -rf /usr/local/bin/colmap /usr/local/share/colmap/ /usr/local/include/colmap/ /usr/local/lib/libcolmap*  /usr/local/share/applications/COLMAP.desktop

[shubham-monarch]

I noticed the CMakeUnistall.cmake file inside the colmap/build/ folder. So, I just ran sudo cmake -P CMakeUnistall.cmake. That did the job.