cannot build - build fails

[Big-Brother]

when I try to build this in Xcode 8.3.2 it fails with.

fatal: Not a git repository (or any of the parent directories): .git
Command /bin/sh failed with exit code 128

export WATCHOS_DEPLOYMENT_TARGET=2.0
export WATCH_BUILT_PRODUCTS_DIR=/Users/bigbrother/Library/Developer/Xcode/DerivedData/DashWallet-fdourdclxpoghuacijskxdvqffqs/Build/Products/Debug-watchsimulator
export WRAP_ASSET_PACKS_IN_SEPARATE_DIRECTORIES=NO
export XCODE_APP_SUPPORT_DIR=/Users/bigbrother/Downloads/Xcode.app/Contents/Developer/Library/Xcode
export XCODE_PRODUCT_BUILD_VERSION=8E2002
export XCODE_VERSION_ACTUAL=0832
export XCODE_VERSION_MAJOR=0800
export XCODE_VERSION_MINOR=0830
export ZERO_AR_DATE=1
export arch=x86_64
export variant=normal
/bin/sh -c git\ submodule\ init\ &&\ git\ submodule\ update

[NamrataKhanduri]

add git in project from ...Source control -> create git respositories

[NamrataKhanduri]

'secp256k1/src/basic-config.h' file not found