html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue
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')` ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1164454058