# IndexError: list index out of range **URL:** \ **Category:** Ansible Project\ **Created:** [February 12, 2015, 6:18am UTC](https://forum.ansible.com/t/indexerror-list-index-out-of-range/17506 "2015-02-12T06:18:26Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Amol\_Shende](https://avatars.discourse-cdn.com/v4/letter/a/ea666f/32.png) [@Amol\_Shende](https://forum.ansible.com/u/Amol_Shende)\ **Post date:** [February 12, 2015, 6:18am UTC](https://forum.ansible.com/t/indexerror-list-index-out-of-range/17506/1 "2015-02-12T06:18:26Z")
Hi Everyone, I am using ansible since 2 months. It was working fine uptill now. But, now it is giving error to every ansible command. For Ex. I am running ping command it is giving following error **ansible -vvvv 172.27.59.27 -m ping** \<172.27.59.27\> ESTABLISH CONNECTION FOR USER: root \<172.27.59.27\> REMOTE\_MODULE ping \<172.27.59.27\> EXEC ssh -C -tt -vvv -o ControlMaster=auto -o ControlPersist=60s -o ControlPath=“/root/.ansible/cp/ansible-ssh-%h-%p-%r” -o Port=22 -o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o ConnectTimeout=10 172.27.59.27 /bin/sh -c ‘mkdir -p $HOME/.ansible/tmp/ansible-tmp-1423718954.13-54115388015450 && echo $HOME/.ansible/tmp/ansible-tmp-1423718954.13-54115388015450’ 172.27.59.27 | FAILED =\> Traceback (most recent call last): File “/usr/lib/python2.7/site-packages/ansible/runner/ **init**.py”, line 590, in \_executor exec\_rc = self.\_executor\_internal(host, new\_stdin) File “/usr/lib/python2.7/site-packages/ansible/runner/ **init**.py”, line 792, in \_executor\_internal return self.\_executor\_internal\_inner(host, self.module\_name, self.module\_args, inject, port, complex\_args=complex\_args) File “/usr/lib/python2.7/site-packages/ansible/runner/ **init**.py”, line 1025, in \_executor\_internal\_inner result = handler.run(conn, tmp, module\_name, module\_args, inject, complex\_args) File “/usr/lib/python2.7/site-packages/ansible/runner/action\_plugins/normal.py”, line 57, in run return self.runner.\_execute\_module(conn, tmp, module\_name, module\_args, inject=inject, complex\_args=complex\_args) File “/usr/lib/python2.7/site-packages/ansible/runner/ **init**.py”, line 475, in \_execute\_module tmp = self.\_make\_tmp\_path(conn) File “/usr/lib/python2.7/site-packages/ansible/runner/ **init**.py”, line 1267, in \_make\_tmp\_path result = self.\_low\_level\_exec\_command(conn, cmd, None, sudoable=False) File “/usr/lib/python2.7/site-packages/ansible/runner/ **init**.py”, line 1173, in \_low\_level\_exec\_command in\_data=in\_data) File “/usr/lib/python2.7/site-packages/ansible/runner/connection\_plugins/ssh.py”, line 291, in exec\_command not\_in\_host\_file = self.not\_in\_host\_file(self.host) File “/usr/lib/python2.7/site-packages/ansible/runner/connection\_plugins/ssh.py”, line 236, in not\_in\_host\_file if tokens[0].find(self.HASHED\_KEY\_MAGIC) == 0: **IndexError: list index out of range** ---
**Author:** ![Daniel6](https://avatars.discourse-cdn.com/v4/letter/d/71e660/32.png) [@Daniel6](https://forum.ansible.com/u/Daniel6)\ **Post date:** [February 12, 2015, 10:44pm UTC](https://forum.ansible.com/t/indexerror-list-index-out-of-range/17506/2 "2015-02-12T22:44:04Z")
From the “not\_in\_host\_file” it sounds like possibly something on the ssh side. Are you able to ssh to 172.27.59.27 manually (either with a password or with the certificate that command is trying to use)? Cheers, Daniel ---
**Author:** ![Giovanni\_Tirloni](https://avatars.discourse-cdn.com/v4/letter/g/71c47a/32.png) [@Giovanni\_Tirloni](https://forum.ansible.com/u/Giovanni_Tirloni)\ **Post date:** [February 13, 2015, 1:24am UTC](https://forum.ansible.com/t/indexerror-list-index-out-of-range/17506/3 "2015-02-13T01:24:02Z")
> Hi Everyone, I am using ansible since 2 months. It was working fine > uptill > now. But, now it is giving error to every ansible command. > For Ex. I am running ping command it is giving following error [...] > "/usr/lib/python2.7/site-packages/ansible/runner/connection\_plugins/ssh.py", > line 236, in not\_in\_host\_file >     if tokens[0].find(self.HASHED\_KEY\_MAGIC) == 0: > \*IndexError: list index out of range\* Something is wrong with your "~/.ssh/known\_hosts" file? Giovanni ---
**Author:** ![Amol\_Shende](https://avatars.discourse-cdn.com/v4/letter/a/ea666f/32.png) [@Amol\_Shende](https://forum.ansible.com/u/Amol_Shende)\ **Post date:** [February 13, 2015, 10:14am UTC](https://forum.ansible.com/t/indexerror-list-index-out-of-range/17506/4 "2015-02-13T10:14:52Z")
Hi Giovanni , Thanks for your valuable solution. I deleted all entries in known\_hosts file and it resolved my issue. ---
**Author:** ![Brian\_Coca](https://avatars.discourse-cdn.com/v4/letter/b/6de8d8/32.png) [@Brian\_Coca](https://forum.ansible.com/u/Brian_Coca)\ **Post date:** [February 13, 2015, 3:56pm UTC](https://forum.ansible.com/t/indexerror-list-index-out-of-range/17506/5 "2015-02-13T15:56:13Z")
A stacktrace is still a bug in our opinion, this PR [https://github.com/ansible/ansible/pull/10238](https://github.com/ansible/ansible/pull/10238) should skip bad data in the file.