issue_comments: 1065343999

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https://github.com/pydata/xarray/issues/6345#issuecomment-1065343999 https://api.github.com/repos/pydata/xarray/issues/6345 1065343999 IC_kwDOAMm_X84_f9v_ 9536301 2022-03-11T17:50:21Z 2022-03-11T17:50:21Z NONE

I just ran into this today as well. I am trying to add a dimensionless variable to an existing Zarr store, to help with CF-compliance (if exporting to netCDF), and I ran into this issue. The dtype of my variable is '|S1', and the error message is printed below:

ValueError: Invalid dtype for data variable: <xarray.DataArray 'crs' ()> array(b'', dtype='|S1') 

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