Facing an issue while tyrying to setup an ansible lab on AWS EC2

HI ,

i had launch an 2 amazon linux ec2 instance to setup an ansible envoirment, i had used the same pem file to launch this. b ut as soon as i tried to ping an client node from ansible tower, it give an error like '"" permision denied (Publickey,gssapi-keyex,gssapi-with-mic) Please help to resolve this issue"".

can any one help me to resolve this.

Thanks

Can you share that error o/p?