ros2 resource_error ai_generated true

ros2 bag play: Could not open bag 'my_bag' - storage plugin 'mcap' not found

ID: ros2/rosbag2-play-missing-storage-plugin

Also available as: JSON · Markdown · 中文
95%Fix Rate
90%Confidence
1Evidence
2023-09-12First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
Humble active — — —
Iron active — — —
Jazzy active — — —
Rolling active — — —

Root Cause

The rosbag2 storage plugin for the bag format (e.g., mcap, sqlite3) is not installed, so the bag file cannot be read.

generic

中文

用于包格式（例如mcap、sqlite3）的rosbag2存储插件未安装，因此无法读取包文件。

Official Documentation

https://github.com/ros2/rosbag2/tree/rolling/rosbag2_storage_mcap

Workarounds

  1. 95% success Install the missing storage plugin using apt. 
    Install the missing storage plugin using apt.
  2. 90% success Check which storage plugins are available and use a supported format. 
    Check which storage plugins are available and use a supported format.
  3. 85% success Re-record the bag with a known working storage plugin. 
    Re-record the bag with a known working storage plugin.

中文步骤

  1. Install the missing storage plugin using apt.
  2. Check which storage plugins are available and use a supported format.
  3. Re-record the bag with a known working storage plugin.

Dead Ends

Common approaches that don't work:

  1. Reinstalling rosbag2 package without the storage plugin 70% fail

    rosbag2 core doesn't include all storage plugins; they must be installed separately.

  2. Converting the bag file manually with a hex editor 90% fail

    Bag files are structured binary formats; manual editing corrupts them.

  3. Setting ROS_DOMAIN_ID to a different value 20% fail

    Domain ID affects discovery, not storage plugin loading.