Coral 开发板 - 无法运行演示答案

【问题标题】：Coral Dev Board - Can't get demo to runCoral 开发板 - 无法运行演示
【发布时间】：2020-08-14 02:26:56
【问题描述】：

我最近购买了一块二手开发板来开始工作。我设法使用启用了 Mendel 5 (Eagle) 的 SSH 来刷新它，并按照入门说明进行操作，没有任何问题，直到我尝试了演示。

我根本无法让它工作！

如果我运行 edgetpu_demo --stream

我明白了：

shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory
Press 'q' to quit.
Press 'n' to switch between models.
Traceback (most recent call last):
  File "/usr/bin/edgetpu_detect_server", line 11, in <module>
    load_entry_point('edgetpuvision==1.0', 'console_scripts', 'edgetpu_detect_server')()
  File "/usr/lib/python3/dist-packages/edgetpuvision/detect_server.py", line 33, in main
    run_server(add_render_gen_args, render_gen)
  File "/usr/lib/python3/dist-packages/edgetpuvision/apps.py", line 43, in run_server
    camera = make_camera(args.source, next(gen), args.loop)
  File "/usr/lib/python3/dist-packages/edgetpuvision/detect.py", line 144, in render_gen
    engines, titles = utils.make_engines(args.model, DetectionEngine)
  File "/usr/lib/python3/dist-packages/edgetpuvision/utils.py", line 53, in make_engines
    engine = engine_class(model_path)
  File "/usr/lib/python3/dist-packages/edgetpu/detection/engine.py", line 80, in __init__
    super().__init__(model_path)
  File "/usr/lib/python3/dist-packages/edgetpu/basic/basic_engine.py", line 92, in __init__
    self._engine = BasicEnginePythonWrapper.CreateFromFile(model_path)
RuntimeError: No Edge TPU device detected!

以 root 身份运行给了我：

shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory
Press 'q' to quit.
Press 'n' to switch between models.
job-working-directory: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory
Unable to init server: Could not connect: Connection refused
Unable to init server: Could not connect: Connection refused
Unable to init server: Could not connect: Connection refused

(edgetpu_detect_server:7283): Gtk-WARNING **: 02:24:31.914: cannot open display:

这似乎更接近，但不知道如何解决。我已经尽可能多地搜索了（将用户添加到plugdev，确保一切都正确安装）

有什么想法吗？可以肯定的是，如果这不起作用，那么某些东西就会被破坏。

【问题讨论】：

标签： google-coral mendel-os

【解决方案1】：

感谢您与我们联系，这绝对不是一个好兆头..

RuntimeError: No Edge TPU device detected!

听起来董事会有些失去对 edgetpu 的访问权限，您能否给我们发送电子邮件至coral-support@google.coon 这个问题？

【讨论】：