【Pytorch】Yolov5中CPU转GPU过程报错完善留档归纳

最新推荐文章于 2025-09-06 07:49:28 发布

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最新推荐文章于 2025-09-06 07:49:28 发布 · 2.4k 阅读

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#pytorch #YOLO #人工智能 #系统修复 #python

本文讲述了在迁移Yolov5项目时遇到的一系列问题，包括PyTorch、torchvision、numpy、matplotlib和scipy等库之间的版本不匹配，以及如何通过Conda管理和修复这些冲突，如升级Python、numpy，重置库和调整内存配置等。

Yolov5 + 从CPU转GPU + Python多版本切换 + Conda包处理

文章目录

1.Pytorch套件中存在版本不匹配

这是后续一系列惨烈报错的起点，包括但不限于pytorch与torch，torch与torchvision，numpy与python，升级python及numpy导致matplotlib多版本残留，处理matplotlib又导致scipy包损坏，最后一切修好后出现炸掉空间无法启动。。。。。。

ERROR: pip’s dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
torchvision 0.17.2 requires torch==2.2.2, but you have torch 1.8.0 which is incompatible.

解决办法
与此前自动升级了torch而落下torchvision相反，这次是torch被落下（
发生原因是用conda create -n yolov5 python=3.8后，考虑原项目使用的是

torch==1.80+python3.8.16

把torch，torchvision，python都从低版本升级到高版本后，各种问题开始浮上水面。

2.numpy停留在3.8没跟上pytorch2.2.2

torch OSError: [WinError 126] 找不到指定的模块

升级numpy

pip install --upgrade numpy

3.ModuleNotFoundError: No module named ‘pandas._libs.interval’

(yolo5) C:\Users\ASUS\Desktop\yolo\yolov5>python train.py --img 640 --batch 32 --epoch 3 --data data/horse.yaml --cfg models/yolov5s.yaml --weights weights/yolov5s.pt
Traceback (most recent call last):
File “C:\Users\ASUS\Desktop\yolo\yolov5\train.py”, line 49, in
import val as validate # for end-of-epoch mAP
^^^^^^^^^^^^^^^^^^^^^^
File “C:\Users\ASUS\Desktop\yolo\yolov5\val.py”, line 39, in
from models.common import DetectMultiBackend
File “C:\Users\ASUS\Desktop\yolo\yolov5\models\common.py”, line 18, in
import pandas as pd
File “E:\anaconda3\envs\yolo5\Lib\site-packages\pandas_init_.py”, line 22, in
from pandas.compat import is_numpy_dev as is_numpy_dev # pyright: ignore # noqa:F401
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\anaconda3\envs\yolo5\Lib\site-packages\pandas\compat_init.py", line 25, in
from pandas.compat.numpy import (
File “E:\anaconda3\envs\yolo5\Lib\site-packages\pandas\compat\numpy_init_.py”, line 4, in
from pandas.util.version import Version
File “E:\anaconda3\envs\yolo5\Lib\site-packages\pandas\util_init_.py”, line 2, in
from pandas.util._decorators import ( # noqa:F401
File “E:\anaconda3\envs\yolo5\Lib\site-packages\pandas\util_decorators.py”, line 14, in
from pandas.libs.properties import cache_readonly
File "E:\anaconda3\envs\yolo5\Lib\site-packages\pandas_libs_init.py", line 13, in
from pandas._libs.interval import Interval
ModuleNotFoundError: No module named ‘pandas._libs.interval’

缺了pandas小小的库依赖。。。

pip install --force-reinstall pandas

4.ImportError: cannot import name ‘_c_internal_utils’ from partially initialized module ‘matplotlib’ (most likely due to a circular import)

Traceback (most recent call last):
File “C:\Users\ASUS\Desktop\yolo\yolov5\models\common.py”, line 27, in
import ultralytics
File “E:\anaconda3\envs\yolo5\Lib\site-packages\ultralytics_init_.py”