I want to install the GenomicAlignments R package, however the installation is distorted because it cannot install one of the dependencies, which RCurl. When I try to install RCurlone by running install.packages("RCurl"), I get the following error:
ld: file not found: /usr/lib/system/libsystem_darwin.dylib for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [RCurl.so] Error 1
ERROR: compilation failed for package ‘RCurl’
* removing ‘/usr/local/lib/R/3.4/site-library/RCurl’
Warning in install.packages :
installation of package ‘RCurl’ had non-zero exit status
This is sessionInfo():
R version 3.4.2 (2017-09-28)
Platform: x86_64-apple-darwin16.7.0 (64-bit)
Running under: macOS Sierra 10.12.6
I traced it to the faulty version of Xcode 9 that I installed recently. So, any ideas on how to fix this? Returning to Xcode 8.3.3 will probably fix the problem, but I have no idea how to do this.
Thanks in advance, TP
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