ImportError: /usr/local/lib/python3.7/dist-packages/mmcv/_ext.cpython-37m-x86_64-linux-gnu.so

[toufique-imam]

I am getting this error in
google colab

Traceback (most recent call last):
  File "demo/restoration_single_face_demo.py", line 12, in <module>
    from mmedit.apis import init_model, restoration_inference
  File "./mmedit/apis/__init__.py", line 5, in <module>
    from .train import init_random_seed, set_random_seed, train_model, init_model
  File "./mmedit/apis/train.py", line 21, in <module>
    from mmedit.models import build_model
  File "./mmedit/models/__init__.py", line 7, in <module>
    from .components import *  # noqa: F401, F403
  File "./mmedit/models/components/__init__.py", line 3, in <module>
    from .stylegan2 import StyleGAN2Discriminator, StyleGANv2Generator
  File "./mmedit/models/components/stylegan2/__init__.py", line 2, in <module>
    from .generator_discriminator import (StyleGAN2Discriminator,
  File "./mmedit/models/components/stylegan2/generator_discriminator.py", line 12, in <module>
    from .modules import (ConstantInput, ConvDownLayer, EqualLinearActModule,
  File "./mmedit/models/components/stylegan2/modules.py", line 13, in <module>
    from mmcv.ops.fused_bias_leakyrelu import (FusedBiasLeakyReLU,
  File "/usr/local/lib/python3.7/dist-packages/mmcv/ops/__init__.py", line 2, in <module>
    from .active_rotated_filter import active_rotated_filter
  File "/usr/local/lib/python3.7/dist-packages/mmcv/ops/active_rotated_filter.py", line 10, in <module>
    ['active_rotated_filter_forward', 'active_rotated_filter_backward'])
  File "/usr/local/lib/python3.7/dist-packages/mmcv/utils/ext_loader.py", line 13, in load_ext
    ext = importlib.import_module('mmcv.' + name)
  File "/usr/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
ImportError: /usr/local/lib/python3.7/dist-packages/mmcv/_ext.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNK3c1010TensorImpl36is_contiguous_nondefault_policy_implENS_12MemoryFormatE

how to fix this