Compilation task failed !

[sunmooncode]

OS Platform and Distribution

ubuntu22.04

Compiler version

gcc-9.5/g++-9.5

Programming Language and version

python=3.12

Installed using virtualenv? pip? Conda?(if python)

conda base

MediaPipe version

0.10.21

Bazel version

6.5.0

XCode and Tulsi versions (if iOS)

No response

Android SDK and NDK versions (if android)

No response

Android AAR (if android)

None

OpenCV version (if running on desktop)

4.10.0-dev

Describe the problem

A bug happened!

Complete Logs

input: 
bazel build -c opt --define EXCLUDE_OPENCV_SO_LIB=1 --copt -DMESA_EGL_NO_X11_HEADERS --copt -DEGL_NO_X11   mediapipe/examples/desktop/hand_tracking:hand_tracking_gpu

error:
ERROR: /home/adam/.cache/bazel/_bazel_adam/dce6a4a8cf6b46261188e884a81496c6/external/linux_opencv/BUILD.bazel:2:1: name 'new_local_repository' is not defined
ERROR: /home/adam/mediapipe/third_party/BUILD:299:6: no such target '@linux_opencv//:opencv': target 'opencv' not declared in package '' defined by /home/adam/.cache/bazel/_bazel_adam/dce6a4a8cf6b46261188e884a81496c6/external/linux_opencv/BUILD.bazel (Tip: use `query "@linux_opencv//:*"` to see all the targets in that package) and referenced by '//third_party:opencv_binary'
ERROR: Analysis of target '//mediapipe/examples/desktop/hand_tracking:hand_tracking_gpu' failed; build aborted: 
INFO: Elapsed time: 0.063s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (1 packages loaded, 15 targets configured)
    Fetching repository @com_google_mediapipe_palm_detection_full_tflite; starting
    Fetching repository @com_google_mediapipe_hand_landmark_full_tflite; starting

[kuaashish]

Hi @sunmooncode,

Please confirm if you can successfully build the Hello_World example as outlined in the documentation. We recommend verifying Hello_World functionality before proceeding to build the libraries.

Thank you!!

[sunmooncode]

Yes, the Hello_World example works!

[kuaashish]

Hi @sunmooncode,

Could you please verify the following include paths within the linux_opencv repository definition in the WORKSPACE file?

Specifically, please confirm that:

• include/opencv4/opencv2/**/.h correctly captures all header files within the OpenCV 4 include directory.
• include/opencv4/ correctly specifies the base include directory for OpenCV 4.

Relevant Code Snippet:

# WORKSPACE
new_local_repository(
  name = "linux_opencv",
  build_file = "@//third_party:opencv_linux.BUILD",
  path = "/usr",
)

# opencv_linux.BUILD for OpenCV 4 installed from Debian package
cc_library(
  name = "opencv",
  hdrs = glob([
    "include/opencv4/opencv2/**/.h", # Please verify this line
  ]),
  includes = [
    "include/opencv4/", # Please verify this line
  ],
  linkopts = [
    "lib/libopencv_core.so",
    "lib/libopencv_calib3d.so",
    "lib/libopencv_features2d.so",
    "lib/libopencv_highgui.so",
    "lib/libopencv_imgcodecs.so",
    "lib/libopencv_imgproc.so",
    "lib/libopencv_video.so",
    "lib/libopencv_videoio.so",
  ],
  visibility = ["//visibility:public"],
)

Let me know if we need to reproduce this, In the case still an issue. 


Thank you!!

[sunmooncode]

I imported opencv using the method here, but I can't import it using the one in the official documentation, and I'd like to know why?

[kuaashish]

Hi @sunmooncode,

Please confirm the status of the above. For the second query, to ensure proper tracking, if it's an issue, provide the error log. If it's a new request, please open a separate issue with full details and a contextual title.

Thank you!!

[github-actions]

This issue has been marked stale because it has no recent activity since 7 days. It will be closed if no further activity occurs. Thank you.