# Tensorflow error tensorflow.python.framework.errors_impl.NotFoundError….libtfkernel_sobol_op.so:

## post by yseeker on May 17, 2021

After I updated lambda stack (sudo apt-get update && sudo apt-get dist-upgrade), I got the following error. Looks like version compatibility issue?

```python
import tensorflow

Traceback (most recent call last):

File "", line 1, in

File "/home/yu/.local/lib/python3.8/site-packages/tensorflow/__init__.py", line 444, in

_ll.load_library(_main_dir)

File "/home/yu/.local/lib/python3.8/site-packages/tensorflow/python/framework/load_library.py", line 154, in load_library

py_tf.TF_LoadLibrary(lib)

tensorflow.python.framework.errors_impl.NotFoundError: /usr/lib/python3/dist-packages/tensorflow/core/kernels/libtfkernel_sobol_op.so: undefined symbol: _ZNK10tensorflow8OpKernel11TraceStringB5cxx11ERKNS_15OpKernelContextEb
```

4.9k views

## post by yseeker on May 17, 2021

Solved by removing lambda stack and reinstalled it.

Somehow tensorflow seems to have been installed by pip at some point…