Git Pull/Push Error: Could not resolve proxy

1. Check to see if your environment has already gain the HTTP and HTTPS proxies:

echo http_proxy
echo https_proxy

2. If they do exist in your environment, run the following commands to reset them.

export http_proxy=""
export https_proxy=""

3. If not, check to see if you have set http.proxy and https.proxy inside your git environment:

git config --global -l

4. If they were set inside your Git environment, run the following commands to remove them:

git config --global --unset-all http.proxy
git config --global --unset-all https.proxy