ImportError: cannot import name 'in_dynamic_mode' from 'paddle' (unknown location)

[1a1aca]

问题确认 Search before asking

• 我已经查询历史issue(包括open与closed)，没有发现相似的bug。I have searched the open and closed issues and found no similar bug report.

Bug描述 Describe the Bug

执行导出预测模型时也出现此错误

复现环境 Environment

PS E:\Python Projects\PaddleSegTest2_8\PaddleSeg\contrib\PP-HumanSeg> cd PP-LiteSeg
PS E:\Python Projects\PaddleSegTest2_8\PaddleSeg\contrib\PP-HumanSeg\PP-LiteSeg> python ../../../tools/export.py --config configs/pp_liteseg/pp_liteseg_stdc1_cityscapes_1024x512_scale0.5_160k.yml --model_path PP-LiteSeg/model.pdparams --save_dir inference_model
Traceback (most recent call last):
File "E:\Python Projects\PaddleSegTest2_8\PaddleSeg\tools\export.py", line 21, in
from paddleseg.cvlibs import Config, SegBuilder
File "D:\Users\Administrator\anaconda3\envs\paddle22\lib\site-packages\paddleseg_init_.py", line 15, in
from . import models, datasets, transforms, optimizers
File "D:\Users\Administrator\anaconda3\envs\paddle22\lib\site-packages\paddleseg\models_init_.py", line 15, in
from .backbones import *
File "D:\Users\Administrator\anaconda3\envs\paddle22\lib\site-packages\paddleseg\models\backbones_init_.py", line 15, in
from .hrnet import *
File "D:\Users\Administrator\anaconda3\envs\paddle22\lib\site-packages\paddleseg\models\backbones\hrnet.py", line 18, in
import paddle.nn as nn
File "D:\Users\Administrator\anaconda3\envs\paddle22\lib\site-packages\paddle\nn_init_.py", line 15, in
from . import functional, initializer, quant, utils # noqa: F401
File "D:\Users\Administrator\anaconda3\envs\paddle22\lib\site-packages\paddle\nn\functional_init_.py", line 18, in
from .activation import (
File "D:\Users\Administrator\anaconda3\envs\paddle22\lib\site-packages\paddle\nn\functional\activation.py", line 16, in
from paddle import _C_ops, _legacy_C_ops, in_dynamic_mode
ImportError: cannot import name 'in_dynamic_mode' from 'paddle' (unknown location)
PS E:\Python Projects\PaddleSegTest2_8\PaddleSeg\contrib\PP-HumanSeg\PP-LiteSeg>

Bug描述确认 Bug description confirmation

• 我确认已经提供了Bug复现步骤、代码改动说明、以及环境信息，确认问题是可以复现的。I confirm that the bug replication steps, code change instructions, and environment information have been provided, and the problem can be reproduced.

是否愿意提交PR？ Are you willing to submit a PR?

• 我愿意提交PR！I'd like to help by submitting a PR!

[TingquanGao]

Thanks for this issue. As it has been inactive for a long time, we would close it. If you has any questions, please feel free to reopen or new issue, and we will follow up and resolve it.