numpy.ufunc has the wrong size, try recompiling. even with the latest pandas and numpy versions : <p>Im using pandas in a container and I get the following error:</p>

<pre><code>Traceback (most recent call last):
  File "/volumes/dependencies/site-packages/celery/app/trace.py", line 374, in trace_task
    R = retval = fun(*args, **kwargs)
  File "/volumes/dependencies/site-packages/celery/app/trace.py", line 629, in __protected_call__
    return self.run(*args, **kwargs)
  File "/volumes/code/autoai/celery/data_template/api.py", line 16, in run_data_template_task
    data_template.run(data_bundle, columns=columns)
  File "/volumes/code/autoai/models/data_template.py", line 504, in run
    self.to_parquet(data_bundle, columns=columns)
  File "/volumes/code/autoai/models/data_template.py", line 162, in to_parquet
    }, parquet_path=data_file.path, directory="", dataset=self)
  File "/volumes/code/autoai/core/datasets/parquet_converter.py", line 46, in convert
    file_system.write_dataframe(parquet_path, chunk, directory, append=append)
  File "/volumes/code/autoai/core/file_systems.py", line 76, in write_dataframe
    append=append)
  File "/volumes/dependencies/site-packages/pandas/core/frame.py", line 1945, in to_parquet
    compression=compression, **kwargs)
  File "/volumes/dependencies/site-packages/pandas/io/parquet.py", line 256, in to_parquet
    impl = get_engine(engine)
  File "/volumes/dependencies/site-packages/pandas/io/parquet.py", line 40, in get_engine
    return FastParquetImpl()
  File "/volumes/dependencies/site-packages/pandas/io/parquet.py", line 180, in __init__
    import fastparquet
  File "/volumes/dependencies/site-packages/fastparquet/__init__.py", line 8, in &lt;module&gt;
    from .core import read_thrift
  File "/volumes/dependencies/site-packages/fastparquet/core.py", line 13, in &lt;module&gt;
    from . import encoding
  File "/volumes/dependencies/site-packages/fastparquet/encoding.py", line 11, in &lt;module&gt;
    from .speedups import unpack_byte_array
  File "__init__.pxd", line 861, in init fastparquet.speedups
ValueError: numpy.ufunc has the wrong size, try recompiling. Expected 192, got 216
</code></pre>

<p>I read on <a href="https://stackoverflow.com/questions/17709641/valueerror-numpy-dtype-has-the-wrong-size-try-recompiling">other answers</a> that this message shows up when pandas is compiled against a newer numpy version than the one you have installed. But updating both pandas and numpy did not work for me. I tried to find out if I have a few versions of numpy, but <code>pip show numpy</code> seems to show the latest version. </p>

<p>Also, in a weird way, this happens only when I deploy locally and not on the server. </p>

<p>Any ideas how to go about fixing that? Or at least how to debug my numpy and pandas versions (if there are multiple versions how do I check that)</p>

<p>I tried: upgrading both packages and removing and reinstalling them. No help there.</p>
