Build failure: Error in loadNamespace(x) : there is no package called ‘palmerpenguins’

This is likely Macports-specific error, but this is the only one package I got it (we have about 1500 `R` packages in Macports by now):
```
---> Configuring R-palmerpenguins
Executing: cd "/opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_R_R-palmerpenguins/R-palmerpenguins/work/palmerpenguins" && /opt/local/bin/R CMD build . --no-manual --no-build-vignettes
* checking for file ‘./DESCRIPTION’ ... OK
* preparing ‘palmerpenguins’:
* checking DESCRIPTION meta-information ... OK
* checking for LF line-endings in source and make files and shell scripts
* checking for empty or unneeded directories
* re-saving .R files as .rda
Error in loadNamespace(x) : there is no package called ‘palmerpenguins’
Execution halted
Command failed: cd "/opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_R_R-palmerpenguins/R-palmerpenguins/work/palmerpenguins" && /opt/local/bin/R CMD build . --no-manual --no-build-vignettes
Exit code: 1
Error: Failed to configure R-palmerpenguins: configure failure: command execution failed
```

NAMESPACE has:
```
# Generated by roxygen2: do not edit by hand

export(path_to_file)
```