Error in re-building vignettes:
  ...
Loading required package: ape
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Retrieving data for taxon 'Struthioniformes'

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Retrieving data for taxon 'Tinamiformes'

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Retrieving data for taxon 'Craciformes'

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Retrieving data for taxon 'Galliformes'

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Retrieving data for taxon 'Anseriformes'

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Retrieving data for taxon 'Turniciformes'

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Retrieving data for taxon 'Piciformes'

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Retrieving data for taxon 'Galbuliformes'

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Retrieving data for taxon 'Bucerotiformes'

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Retrieving data for taxon 'Upupiformes'

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See https://ncbiinsights.ncbi.nlm.nih.gov/2017/11/02/new-api-keys-for-the-e-utilities/

Retrieving data for taxon 'Trogoniformes'

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Retrieving data for taxon 'Coraciiformes'

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Retrieving data for taxon 'Coliiformes'

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Retrieving data for taxon 'Cuculiformes'

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Retrieving data for taxon 'Psittaciformes'

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Retrieving data for taxon 'Apodiformes'

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Retrieving data for taxon 'Trochiliformes'

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Retrieving data for taxon 'Musophagiformes'

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Retrieving data for taxon 'Strigiformes'

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Retrieving data for taxon 'Columbiformes'

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Retrieving data for taxon 'Gruiformes'

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Retrieving data for taxon 'Ciconiiformes'

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Retrieving data for taxon 'Passeriformes'


Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

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Retrieving data for taxon 'Allenopithecus_nigroviridis'

Quitting from lines 207-211 (metadata.Rmd) 
Error: processing vignette 'metadata.Rmd' failed with diagnostics:
Error in the HTTP2 framing layer
Execution halted