qt 抱怨 2 套二进制文件

Question

我正在尝试使用 conda 设置环境。我的 environment.yml 看起来像：

name: name
channels:
  - defaults
  - conda-forge
  - pytorch
  # - fastai
dependencies:
  - python = 3.7.5
  - numpy
  - pillow
  - matplotlib
  - pytorch
  - torchvision
  # - json
  # - zipfile
  # - csv
  - pandas
  # - pickle
  # - glob
  - scikit-learn
  - pip # needed to install pip dependencies below
  - pip:
    # - opencv-contrib-python
    -  opencv-python
  - pyarrow
  # - qt

我一直在尝试添加和删除 qt 包。如果我删除qt，我得到[qt.qpa.plugin] Could not find the Qt platform plugin "cocoa" in ""

然后我试着加了qt，希望能拿到cocoa插件

当我运行应用程序时，我得到

objc[4831]: Class RunLoopModeTracker is implemented in both /opt/miniconda3/envs/grapheme/lib/python3.7/site-packages/cv2/.dylibs/QtCore (0x11e1e87f0) and /opt/miniconda3/envs/grapheme/lib/libQt5Core.5.9.7.dylib (0x1a33234a80). One of the two will be used. Which one is undefined.
loaded library "/opt/miniconda3/envs/grapheme/plugins/platforms/libqcocoa.dylib"
QObject::moveToThread: Current thread (0x7fb18afea390) is not the object's thread (0x7fb18f900090).
Cannot move to target thread (0x7fb18afea390)

You might be loading two sets of Qt binaries into the same process. Check that all plugins are compiled against the right Qt binaries. Export DYLD_PRINT_LIBRARIES=1 and check that only one set of binaries are being loaded.
QObject::moveToThread: Current thread (0x7fb18afea390) is not the object's thread (0x7fb18f900090).
Cannot move to target thread (0x7fb18afea390)

You might be loading two sets of Qt binaries into the same process. Check that all plugins are compiled against the right Qt binaries. Export DYLD_PRINT_LIBRARIES=1 and check that only one set of binaries are being loaded.
qt.qpa.plugin: Could not load the Qt platform plugin "cocoa" in "/opt/miniconda3/envs/grapheme/plugins/platforms/" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: cocoa (from /opt/miniconda3/envs/grapheme/plugins/platforms/), minimal (from /opt/miniconda3/envs/grapheme/plugins/platforms/), offscreen (from /opt/miniconda3/envs/grapheme/plugins/platforms/), cocoa, minimal, offscreen.

Answer 1

这解决了我的问题。你可以试试看。

pip 安装 opencv-python-headless

这些软件包不包含任何 GUI 功能。它们更小，适用于更受限制的环境。如果您只需要主要模块 源，请运行 pip install opencv-python-headless：https : //pypi.org/project/opencv-python/