中电软件园场景运行generate_traffic.py报错（Town10没问题）

[donghaiwang]

中电软件园场景运行generate_traffic.py报错（Town10没问题）：

Traceback (most recent call last):
  File "generate_traffic.py", line 367, in <module>
    main()
  File "generate_traffic.py", line 285, in main
    results = client.apply_batch_sync(batch, do_tick=True)
RuntimeError: length >= 2.0f * std::numeric_limits<float>::epsilon()

Originally posted by @donghaiwang in #3453

[donghaiwang]

同样问题：carla-simulator/carla#9538

[donghaiwang]

最后报错位置：

hutb/LibCarla/source/carla/geom/Vector3D.h

Line 72 in 8f1d58a

DEVELOPMENT_ASSERT(length >= 2.0f * std::numeric_limits<float>::epsilon());

[donghaiwang]

移除断言：carla-simulator/carla@7b2ef1d