AttributeError: 'NoneType' object has no attribute 'train'

[songnanx]

对模型量化时报错
PaddleSlim 2.1.1
paddlepaddle-gpu 2.1.3.post112
paddleseg 2.3

[juncaipeng]

量化的文档中建议安装paddlepaddle-gpu的nightly build版本，近期会发布paddlepaddle-gpu 2.2版本，到时候也可以安装2.2版本。
https://github.com/PaddlePaddle/PaddleSeg/blob/release/2.3/docs/slim/quant/quant.md#31-%E7%8E%AF%E5%A2%83%E5%87%86%E5%A4%87

[Darki-luo]

量化的文档中建议安装paddlepaddle-gpu的nightly build版本，近期会发布paddlepaddle-gpu 2.2版本，到时候也可以安装2.2版本。 https://github.com/PaddlePaddle/PaddleSeg/blob/release/2.3/docs/slim/quant/quant.md#31-%E7%8E%AF%E5%A2%83%E5%87%86%E5%A4%87

ubuntu18.04
PaddleSlim 2.1.1
PaddlePaddle-gpu=2.2.1
Paddleseg=2.3
python=3.8.12
cudatoolkit=10.2 cudnn=7.6.5

W1207 19:16:10.254144 10534 device_context.cc:447] Please NOTE: device: 0, GPU Compute Capability: 7.5, Driver API Version: 11.0, Runtime API Version: 10.2
W1207 19:16:10.254165 10534 device_context.cc:465] device: 0, cuDNN Version: 7.6.
2021-12-07 19:16:11 [INFO] Loading pretrained model from /home/w/python/laaneseg/output/bisenet/iter_5000/model.pdparams
2021-12-07 19:16:11 [INFO] There are 356/356 variables loaded into BiSeNetV2.
2021-12-07 19:16:11 [INFO] Loaded trained params of model successfully
2021-12-07 19:16:11 [INFO] Quantize all target ops
2021-12-07 19:16:12 [INFO] Quantize the model successfully
Traceback (most recent call last):
File "slim/quant/qat_train.py", line 212, in
main(args)
File "slim/quant/qat_train.py", line 193, in main
train(
File "/home/w/python/laaneseg/Pdseg/paddleseg/core/train.py", line 95, in train
model.train()
AttributeError: 'NoneType' object has no attribute 'train'
还是报这个错误

[wayneck]

更新了版本还是一样的错！能给个靠谱的方案吗？
......
2022-01-13 18:00:33 [INFO] Quantize the model successfully
/usr/lib/python3/dist-packages/apport/report.py:13: DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses
import fnmatch, glob, traceback, errno, sys, atexit, locale, imp, stat
Traceback (most recent call last):
File "slim/quant/qat_train.py", line 217, in
main(args)
File "slim/quant/qat_train.py", line 198, in main
train(
File "/xxx/PaddleSeg/paddleseg/core/train.py", line 95, in train
model.train()
AttributeError: 'NoneType' object has no attribute 'train'

[A834309]

同样的问题，求个解决方案~

[juncaipeng]

已经提供修复PR。