libsystem_symptoms.dylib missing in Xcode 8

Question

I just updated to Xcode 8, and I can no longer build xml2-based applications. If I build a simple file and try to build it as follows:

c++ myapp.cc `xml2-config         


        

Answer 1

Until Xcode8 stabilizes, I retain Xcode7.3, renamed as

/Applications/Xcode7.3.app/

Generally I use Xcode8 which is in

/Applications/Xcode.app/

but when encountering errors such as this, I have the option to

sudo xcode-select -switch /Applications/Xcode7.3.app/

This cured the error

ld: file not found: /usr/lib/system/libsystem_symptoms.dylib for architecture x86_64

for me, when attempting to install an R package:

> install.packages('clickstream')