Error on install pod with pod 'PIATunnel'

[FaShapouri]

Summary

I tried to install pod framework, but I got error. my terminal log shows below message:

Ignoring json-2.1.0 because its extensions are not built. Try: gem pristine json --version 2.1.0
Ignoring unf_ext-0.0.7.5 because its extensions are not built. Try: gem pristine unf_ext --version 0.0.7.5
Analyzing dependencies
Downloading dependencies
Installing OpenSSL-Apple (1.1.0h)

[!] Error installing OpenSSL-Apple
[!] /usr/bin/git clone https://github.com/keeshux/OpenSSL-Apple /var/folders/nr/8zms3kxj3mvfjbh89v9_ltm40000gn/T/d20191005-19233-1aigq54 --template= --single-branch --depth 1 --branch 1.0

Cloning into '/var/folders/nr/8zms3kxj3mvfjbh89v9_ltm40000gn/T/d20191005-19233-1aigq54'...
warning: Could not find remote branch 1.0 to clone.
fatal: Remote branch 1.0 not found in upstream origin

I am using xcode 10.2.1

How can I fix this issue?

[samkerm]

@FaShapouri Try downloading an older Xcode and replace it in the applications then run the $ pod install