I am trying to implement the package "greenbrown" in R in order to conduct some studies on plant phenology. This package requires a number of dependencies, including "phenopix," which R fails to install. The error reported in the console is as follows: "ERROR: dependencies 'SDMTools', 'bcp' are not available for package 'phenopix'

* removing 'D:/R-SOFTWARE/R-4.0.5/library/phenopix'

Warning in install.packages :

installation of package 'phenopix' had non-zero exit status"

Searching in interner I found that the package 'phenopix' was removed from the CRAN repository.

Can anyone tell me how I can solve this problem? Is there any way to retrieve the package even though it was removed? Or are there alternative packages that I can use equally?

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