问题一,　解决git clone时报错：The requested URL returned error: 401 Unauthorized while accessing

版本问题，最直接的解决办法就是重新编辑安装git吧：

1. 下载：# wget -O git.zip https://github.com/git/git/archive/master.zip

2. 解压：# unzip git.zip

3. 进入git目录：# cd git-master

4. 编译安装：

autoconf
./configure --prefix=/usr/local
make && make install

5. 最后别忘了删掉旧的git，并把新版本的git建立软链接到/usr/bin/git

rm /usr/bin/git
ln -s /usr/local/bin/git /usr/bin/git

问题二,　fatal: Unable to find remote helper for 'https':

158down voteaccepted

It looks like not having (lib)curl-devel installed when you compile git can cause this.

If you install (lib)curl-devel, and then rebuild/install git, this should solve the problem:

$ yum install curl-devel
$ # cd to wherever the source for git is
$ cd /usr/local/src/git-1.7.9  
$ ./configure
$ make
$ make install

This worked for me on Centos 6.3.

If you don't have yum, you can download the source to curl-devel here: