问题确认 Search before asking

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

Bug组件 Bug Component

Training、Validation

Bug描述 Describe the Bug

<class 'dict'>
Traceback (most recent call last):
File "tools/train.py", line 172, in
main()
File "tools/train.py", line 168, in main
run(FLAGS, cfg)
File "tools/train.py", line 132, in run
trainer.train(FLAGS.eval)
File "/home/aistudio/work/PaddleDetection/ppdet/engine/trainer.py", line 537, in train
self.model.set_dict(self.ema.apply())
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/framework.py", line 486, in wrapper
return func(*args, **kwargs)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/dygraph/layers.py", line 1496, in set_state_dict
param.set_value(state)
File "", line 2, in set_value
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/wrapped_decorator.py", line 25, in impl
return wrapped_func(*args, **kwargs)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/framework.py", line 434, in impl
return func(*args, **kwargs)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/dygraph/varbase_patch_methods.py", line 188, in set_value
self.name, self.dtype, dtype)
AssertionError: Variable dtype not match, Variable [ auto_16_ ] need tensor with dtype paddle.int64 but load tensor with dtype paddle.float32

复现环境 Environment

paddlepaddle：2.5.2
paddledetection：release/2.6
python：3.10.10
cuda：11.3
cudnn：8.4

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!