RuntimeError: Legacy autograd function with non-static forward method is deprecated.

[amazingcodeLYL]

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RuntimeError: Legacy autograd function with non-static forward method is deprecated. Please use new-style autograd function with static forward method. (Example: https://pytorch.org/docs/stable/autograd.html#torch.autograd.Function)

升级了torch和torchvision版本，又降低了torch和torchvision版本都不行 求解决办法

[MiaoRain]

遇到同样问题 怎么解决的？

[tobyatgithub]

其实这个就是torch版本的问题， specify torchvision==0.4.0就可以解决

pip uninstall torchvision
pip uninstall torch
pip install torchvision==0.4.0

torchvision==0.4.0会自动安装1.2版本的pytorch，安装好之后重启一下environment就可以运行了

[MiaoRain]

感谢 tobyatgithub 的帮助

[chensong1995]

I changed RoIPooling2D here to:

class RoIPooling2D(t.nn.Module):
    def __init__(self, outh, outw, spatial_scale):
        super(RoIPooling2D, self).__init__()
        self.outh, self.outw, self.spatial_scale = outh, outw, spatial_scale

    def forward(self, x, rois):
        return roi_pool(x, rois, (self.outh, self.outw), self.spatial_scale)

I also did from torchvision.ops import roi_pool in the same file. This looks to me solve the problem.

[jiangsn]

I changed RoIPooling2D here to:

class RoIPooling2D(t.nn.Module):
    def __init__(self, outh, outw, spatial_scale):
        super(RoIPooling2D, self).__init__()
        self.outh, self.outw, self.spatial_scale = outh, outw, spatial_scale

    def forward(self, x, rois):
        return roi_pool(x, rois, (self.outh, self.outw), self.spatial_scale)

I also did from torchvision.ops import roi_pool in the same file. This looks to me solve the problem.

Problem solved, thank you!