Issues

• Is cmake-args merging possible/wanted now?

  colcon/colcon-core#742 · Filter by author peci1 opened on Jul 27, 2026

• Proposal: Migration of colcon-core to PEP 517/518/621/660 Standards

  colcon/colcon-core#736 · Filter by author KmoM88 opened on Jun 3, 2026

• setup.bash silently fails on conda/pixi prefixes: _local_setup_util_sh.py not found in chained prefix

  colcon/colcon-core#734 · Filter by author antrom99 opened on May 18, 2026

• a colcon-venv package to manage venv for python packages

  colcon/colcon-core#733 · Filter by author Briancbn opened on Apr 24, 2026

• Policy on Feature flags

  colcon/colcon-core#716 · Filter by author SuperJappie08 opened on Nov 12, 2025
  1

• ROS2 colcon build normalizes underscores to dashes in Python package names, causing “No package metadata found” errors

  colcon/colcon-core#715 · Filter by author maheshudaykar opened on Nov 5, 2025
  1

• Colcon Fish Extension

  help wanted
  Feature

  colcon/colcon-core#710 · Filter by author threeal opened on Oct 9, 2025
  2

• Consider not accessing run/exec dependencies during colcon build

  Feature

  colcon/colcon-core#707 · Filter by author clalancette opened on Aug 25, 2025
  6

• Consider ignoring setup.py if there is no package.xml at that level?

  colcon/colcon-core#706 · Filter by author sea-bass opened on Aug 4, 2025
  3

• Possibility to create separate JUnit XML files on retest

  colcon/colcon-core#705 · Filter by author heinemichael opened on Aug 1, 2025

• [Question] Is there a mechanism for generating a publishable/runtime artifact for a C++ package?

  colcon/colcon-core#703 · Filter by author villapx-path opened on Jun 18, 2025

• [Question / Feature Request] Only build packages with modified source code

  colcon/colcon-core#702 · Filter by author bharathsivaram10 opened on Jun 12, 2025
  5

• Use CMAKE_INSTALL_MODE environment variable to implement --symlink-install for plain cmake projects

  colcon/colcon-core#701 · Filter by author traversaro opened on Jun 6, 2025

• Feature: Add option to show the colcon info output in JSON or other machine parseable format

  colcon/colcon-core#695 · Filter by author 0xjairo opened on May 14, 2025

• --symlink-install ignores build_scripts executable option in setup.py

  colcon/colcon-core#694 · Filter by author aaron-riact opened on May 13, 2025
  3

• colcon builds fail when symlinked files were deleted

  colcon/colcon-core#692 · Filter by author b-adkins opened on Apr 16, 2025
  2

• --symlink-install option ignore cmdclass in setup.py?

  colcon/colcon-core#691 · Filter by author jsupratman13 opened on Apr 10, 2025

• NO TESTS RAN failure on Noble for an ament_python package

  colcon/colcon-core#678 · Filter by author stonier opened on Nov 25, 2024
  8

• Treat exec_dependencies differently

  enhancement
  colcon/colcon-core#671 · Filter by author Spenser-Dewey opened on Oct 4, 2024
  1

  

• Distinguish between required and optional dependencies

  colcon/colcon-core#659 · Filter by author leorich opened on Aug 5, 2024
  1

• colcon build executor not affecting make -j command

  colcon/colcon-core#657 · Filter by author YossiO-BWR opened on Jul 25, 2024
  1

• Request to transfer colcon-lint extension repository

  colcon/colcon-core#653 · Filter by author Tacha-S opened on Jun 22, 2024
  2

  

• colcon returns with success when extension loading fails

  colcon/colcon-core#637 · Filter by author christianrauch opened on Apr 12, 2024

• Error building after deleting a file: can't copy '<deleted-file> doesn't exist or not a regular file

  bug
  colcon/colcon-core#633 · Filter by author tonynajjar opened on Mar 22, 2024
  6

  

• Install colcon on x86 to cross compile ros2

  colcon/colcon-core#631 · Filter by author CTGUMARK opened on Mar 20, 2024
  4