Running examples in 'ggguitar-Ex.R' failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: select_chords
> ### Title: Select chords by criteria
> ### Aliases: select_chords
> 
> ### ** Examples
> 
> select_chords(chord_name = 'Major', string_5_fret = 3)
Warning: `filter_()` was deprecated in dplyr 0.7.0.
Please use `filter()` instead.
See vignette('programming') for more help
This warning is displayed once every 8 hours.
Call `lifecycle::last_lifecycle_warnings()` to see where this warning was generated.
Error in if (!is.null(value) && value != "") { : 
  missing value where TRUE/FALSE needed
Calls: select_chords -> narrow_chord
Execution halted
Package vignette with placeholder title 'Vignette Title':
  'my-vignette.Rmd'
Running examples in ‘ggguitar-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: select_chords
> ### Title: Select chords by criteria
> ### Aliases: select_chords
> 
> ### ** Examples
> 
> select_chords(chord_name = 'Major', string_5_fret = 3)
Warning: `filter_()` was deprecated in dplyr 0.7.0.
Please use `filter()` instead.
See vignette('programming') for more help
This warning is displayed once every 8 hours.
Call `lifecycle::last_lifecycle_warnings()` to see where this warning was generated.
Error in if (!is.null(value) && value != "") { : 
  missing value where TRUE/FALSE needed
Calls: select_chords -> narrow_chord
Execution halted
Package vignette with placeholder title ‘Vignette Title’:
  ‘my-vignette.Rmd’
Namespaces in Imports field not imported from:
  ‘gridExtra’ ‘lazyeval’ ‘readr’
  All declared Imports should be used.
Running examples in ‘ggguitar-Ex.R’ failed
The error most likely occurred in:

> ### Name: select_chords
> ### Title: Select chords by criteria
> ### Aliases: select_chords
> 
> ### ** Examples
> 
> select_chords(chord_name = 'Major', string_5_fret = 3)
Warning: `filter_()` was deprecated in dplyr 0.7.0.
Please use `filter()` instead.
See vignette('programming') for more help
This warning is displayed once every 8 hours.
Call `lifecycle::last_lifecycle_warnings()` to see where this warning was generated.
Error in if (!is.null(value) && value != "") { : 
  missing value where TRUE/FALSE needed
Calls: select_chords -> narrow_chord
Execution halted
Namespaces in Imports field not imported from:
  ‘gridExtra’ ‘lazyeval’ ‘readr’
  All declared Imports should be used.
Running examples in ‘ggguitar-Ex.R’ failed
The error most likely occurred in:

> ### Name: select_chords
> ### Title: Select chords by criteria
> ### Aliases: select_chords
> 
> ### ** Examples
> 
> select_chords(chord_name = 'Major', string_5_fret = 3)
Warning: `filter_()` was deprecated in dplyr 0.7.0.
Please use `filter()` instead.
See vignette('programming') for more help
This warning is displayed once every 8 hours.
Call `lifecycle::last_lifecycle_warnings()` to see where this warning was generated.
Error in if (!is.null(value) && value != "") { : 
  missing value where TRUE/FALSE needed
Calls: select_chords -> narrow_chord
Execution halted
Running examples in 'ggguitar-Ex.R' failed
The error most likely occurred in:

> ### Name: select_chords
> ### Title: Select chords by criteria
> ### Aliases: select_chords
> 
> ### ** Examples
> 
> select_chords(chord_name = 'Major', string_5_fret = 3)
Warning: `filter_()` was deprecated in dplyr 0.7.0.
Please use `filter()` instead.
See vignette('programming') for more help
This warning is displayed once every 8 hours.
Call `lifecycle::last_lifecycle_warnings()` to see where this warning was generated.
Error in if (!is.null(value) && value != "") { : 
  missing value where TRUE/FALSE needed
Calls: select_chords -> narrow_chord
Execution halted
Package vignette with placeholder title 'Vignette Title':
  'my-vignette.Rmd'
Namespaces in Imports field not imported from:
  'gridExtra' 'lazyeval' 'readr'
  All declared Imports should be used.
Running examples in 'ggguitar-Ex.R' failed
The error most likely occurred in:

> ### Name: select_chords
> ### Title: Select chords by criteria
> ### Aliases: select_chords
> 
> ### ** Examples
> 
> select_chords(chord_name = 'Major', string_5_fret = 3)
Warning: `filter_()` was deprecated in dplyr 0.7.0.
Please use `filter()` instead.
See vignette('programming') for more help
This warning is displayed once every 8 hours.
Call `lifecycle::last_lifecycle_warnings()` to see where this warning was generated.
Error in if (!is.null(value) && value != "") { : 
  missing value where TRUE/FALSE needed
Calls: select_chords -> narrow_chord
Execution halted
Package vignette with placeholder title ‘Vignette Title’:
  ‘my-vignette.Rmd’
Namespaces in Imports field not imported from:
  ‘gridExtra’ ‘lazyeval’ ‘readr’
  All declared Imports should be used.
Package vignette with placeholder title ‘Vignette Title’:
  ‘my-vignette.Rmd’
Namespaces in Imports field not imported from:
  ‘gridExtra’ ‘lazyeval’ ‘readr’
  All declared Imports should be used.
Namespaces in Imports field not imported from:
  ‘gridExtra’ ‘lazyeval’ ‘readr’
  All declared Imports should be used.
Package vignette with placeholder title 'Vignette Title':
  'my-vignette.Rmd'
Namespaces in Imports field not imported from:
  ‘gridExtra’ ‘lazyeval’ ‘readr’
  All declared Imports should be used.
Package vignette with placeholder title 'Vignette Title':
  'my-vignette.Rmd'