Unable to create new project in Ionic

I am new to ionic and I started learning since 2 months. I have created some sample projects and those are working fine for me, But now after a gap of 15 days when again I started to to create a new project its showing me the below errors. Can anyone pls help me to resolve this issue.

E:\android>ionic start newapp

? What starter would you like to use: tabs
√ Creating directory .\newapp - done!
x Downloading and extracting tabs starter - failed!
Error: unable to verify the first certificate
at TLSSocket. (_tls_wrap.js:1103:38)
at emitNone (events.js:106:13)
at TLSSocket.emit (events.js:208:7)
at TLSSocket._finishInit (_tls_wrap.js:637:8)
at TLSWrap.ssl.onhandshakedone (_tls_wrap.js:467:38)



Might be an issue with the git version you’re using.

Download the latest git and try again.

Didn’t That work, still i am seeing the same error. Anyone got a solution for this issue?