Mongodb Realm installation using Xcode 11.4 with Cocoapods causes error - xcode

Question

I created a new Swift app with xcode 11.4 and I am trying to install the pod for Mongodb Realm as per the instructions in the documentation (https://docs.mongodb.com/realm/ios/install/#ios-install). But when I do "pod install" I am getting this error:
*Installing Realm (10.0.0-beta.6)
[!] /bin/bash -c
set -e
sh build.sh cocoapods-setup
Downloading dependency: sync 10.0.0-beta.14 from https://static.realm.io/downloads/sync/realm-sync-cocoa-10.0.0-beta.14.tar.xz
Undefined symbols for architecture x86_64:
"___isPlatformVersionAtLeast", referenced from:
realm::util::(anonymous namespace)::ensure_reclaimer_thread_runs() in librealm-sync-ios-dbg.a(file_mapper.o)
realm::util::terminate_internal(std::__1::basic_stringstream<char, std::__1::char_traits<char>, std::__1::allocator<char> >&) in librealm-sync-ios-dbg.a(terminate.o)
realm::util::network::SecureTransportErrorCategory::message(int) const in librealm-sync-ios-dbg.a(network_ssl.o)
realm::util::network::ssl::Stream::verify_peer() in librealm-sync-ios-dbg.a(network_ssl.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)*
My podfile is as per instructions:
*platform :ios, '12.0'
target 'TEST' do
use_frameworks!
pod 'RealmSwift', '=10.0.0-beta.6'
end*
I am following the exact instructions and so why is this happening?

Answer 1

I would say the issue could be the podfile or that XCode was initially launched from another location (like a disk image or the downloads folder) and/or there are multiple XCode versions installed.
Podfile:
Looks like it's missing some components or may be malformed (which is why I asked if it was the exact podfile in my comments)
Here's what it should look like
project 'Test.xcodeproj'
target 'Test' do
use_frameworks!
pod 'RealmSwift', '=10.0.0-beta.6'
# ^^^ or whatever the current vers is
end
I just built a brand new MongoDB Realm project with this podfile and it worked correctly.
Also ensure your cocoapods is up-to-date as well. Either
sudo gem install cocoapods
or for us dealing with an error for that
sudo gem install -n /usr/local/bin cocoapods
Be sure you can access the latest Realm versions by ensuring your pods are up-to-date
pod repo update
XCode:
If it was initially launched from another location is won't know where it's files are. The fix is a delete and reinstall from the AppStore and/or realigning it's files with this in terminal:
xcode-select --switch /Applications/Xcode.app