So why not downgrade to the version you love. LAPACK: /Library/Frameworks/R.framework/Versions/4.1-arm64/Resources/lib/libRlapack.dylib provides free software downloads for old versions of programs, drivers and games. Platform: aarch64-apple-darwin20 (64-bit) The 7-zip program is needed to unpack NHD downloads (). Which returns Error in nhd_plus_get(vpu = 15, component = 'NHDSnapshot') : RStudio: nhdR::nhd_plus_get(vpu = 15, component = 'NHDSnapshot') (and also returns a list of commands and switches) P7zip Version 17.04 (locale=utf8,Utf16=on,HugeFiles=on,64 bits,8 CPUs LE) Step 4: Once done, the zipped files will be decompressed and placed into the Finder folder. Step 2: Find the ZIP archive you’d like to decompress. Any idea what's happening? Is there some path I need to specify in R to the location of 7zip? I'm losing it a bit with this, so any help is appreciated.ħ-Zip 17.04 : Copyright (c) 1999-2021 Igor Pavlov : Here’s how to open ZIP files using Finder: Step 1: To get started, go to Finder. And as far as I can tell, there's no additional step needed to configure R to use 7zip. However, when I call nhdR functions that require 7zip, R appears not to recognize that I have 7zip installed. I'm on a MacBook pro, so I installed 7zip through the terminal via homebrew ( brew install p7zip). NhdR requires 7zip to unzip data downloaded with package functions (e.g. I'm working in R using the package nhdR ( link to package page).

7zip osx