V7 Installation Error

I WAS TRYING TO INSTALL ERPNEXT v7 ON MY PC
AND I FOOLOW THE STSEPS BUT FOUND THIS ERROR,PLEASE HELP

1-1ubuntu0.3 [2,586 kB]
Get:34 http://et.archive.ubuntu.com/ubuntu/ trusty/main libalgorithm-diff-perl all 1.19.02-3 [50.0 kB]
Get:35 http://et.archive.ubuntu.com/ubuntu/ trusty/main libalgorithm-diff-xs-perl amd64 0.04-2build4 [12.6 kB]
Get:36 http://et.archive.ubuntu.com/ubuntu/ trusty/main libalgorithm-merge-perl all 0.08-2 [12.7 kB]
Get:37 http://et.archive.ubuntu.com/ubuntu/ trusty/main libpython-dev amd64 2.7.5-5ubuntu3 [7,078 B]
Get:38 http://et.archive.ubuntu.com/ubuntu/ trusty/main zlib1g-dev amd64 1:1.2.8.dfsg-1ubuntu1 [183 kB]
Get:39 http://et.archive.ubuntu.com/ubuntu/ trusty-updates/main libssl-dev amd64 1.0.1f-1ubuntu2.19 [1,073 kB]
Get:40 http://et.archive.ubuntu.com/ubuntu/ trusty-updates/main libssl-doc all 1.0.1f-1ubuntu2.19 [971 kB]
Get:41 http://et.archive.ubuntu.com/ubuntu/ trusty-updates/main python2.7-dev amd64 2.7.6-8ubuntu0.2 [269 kB]
Get:42 http://et.archive.ubuntu.com/ubuntu/ trusty/main python-dev amd64 2.7.5-5ubuntu3 [1,166 B]
Get:43 http://et.archive.ubuntu.com/ubuntu/ trusty-updates/main python-pkg-resources all 3.3-1ubuntu2 [61.9 kB]
Get:44 http://et.archive.ubuntu.com/ubuntu/ trusty-updates/main python-setuptools all 3.3-1ubuntu2 [230 kB]
Get:45 http://et.archive.ubuntu.com/ubuntu/ trusty-updates/main libffi-dev amd64 3.1~rc1+r3.0.13-12ubuntu0.1 [99.8 kB]
Fetched 52.0 MB in 1h 32min 23s (9,384 B/s)                                    
Extracting templates from packages: 100%
Preconfiguring packages ...
(Reading database ... 163211 files and directories currently installed.)
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Unpacking libitm1:amd64 (4.8.4-2ubuntu1~14.04.3) over (4.8.2-19ubuntu1) ...
Preparing to unpack .../libgomp1_4.8.4-2ubuntu1~14.04.3_amd64.deb ...
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Unpacking cpp-4.8 (4.8.4-2ubuntu1~14.04.3) over (4.8.2-19ubuntu1) ...
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Processing triggers for man-db (2.6.7.1-1) ...
Setting up gcc-4.8-base:amd64 (4.8.4-2ubuntu1~14.04.3) ...
(Reading database ... 163211 files and directories currently installed.)
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Setting up libstdc++6:amd64 (4.8.4-2ubuntu1~14.04.3) ...
Processing triggers for libc-bin (2.19-0ubuntu6) ...
(Reading database ... 163223 files and directories currently installed.)
Preparing to unpack .../libexpat1_2.1.0-4ubuntu1.3_amd64.deb ...
Unpacking libexpat1:amd64 (2.1.0-4ubuntu1.3) over (2.1.0-4ubuntu1) ...
Preparing to unpack .../libffi6_3.1~rc1+r3.0.13-12ubuntu0.1_amd64.deb ...
Unpacking libffi6:amd64 (3.1~rc1+r3.0.13-12ubuntu0.1) over (3.1~rc1+r3.0.13-12) ...
Preparing to unpack .../libssl1.0.0_1.0.1f-1ubuntu2.19_amd64.deb ...
Unpacking libssl1.0.0:amd64 (1.0.1f-1ubuntu2.19) over (1.0.1f-1ubuntu2) ...
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Unpacking libpython2.7-dev:amd64 (2.7.6-8ubuntu0.2) ...
Selecting previously unselected package libstdc++-4.8-dev:amd64.
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Unpacking libstdc++-4.8-dev:amd64 (4.8.4-2ubuntu1~14.04.3) ...
Selecting previously unselected package g++-4.8.
Preparing to unpack .../g++-4.8_4.8.4-2ubuntu1~14.04.3_amd64.deb ...
Unpacking g++-4.8 (4.8.4-2ubuntu1~14.04.3) ...
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Unpacking g++ (4:4.8.2-1ubuntu6) ...
Preparing to unpack .../libdpkg-perl_1.17.5ubuntu5.7_all.deb ...
Unpacking libdpkg-perl (1.17.5ubuntu5.7) over (1.17.5ubuntu5) ...
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Unpacking dpkg-dev (1.17.5ubuntu5.7) ...
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Unpacking build-essential (11.6ubuntu6) ...
Selecting previously unselected package libfakeroot:amd64.
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Unpacking fakeroot (1.20-3ubuntu2) ...
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Unpacking liberror-perl (0.17-1.1) ...
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Selecting previously unselected package libalgorithm-diff-perl.
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Unpacking libalgorithm-diff-perl (1.19.02-3) ...
Selecting previously unselected package libalgorithm-diff-xs-perl.
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Unpacking libalgorithm-diff-xs-perl (0.04-2build4) ...
Selecting previously unselected package libalgorithm-merge-perl.
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Unpacking libalgorithm-merge-perl (0.08-2) ...
Selecting previously unselected package libpython-dev:amd64.
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Unpacking libpython-dev:amd64 (2.7.5-5ubuntu3) ...
Selecting previously unselected package zlib1g-dev:amd64.
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Unpacking zlib1g-dev:amd64 (1:1.2.8.dfsg-1ubuntu1) ...
Selecting previously unselected package libssl-dev:amd64.
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Unpacking libssl-doc (1.0.1f-1ubuntu2.19) ...
Selecting previously unselected package python2.7-dev.
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Unpacking python2.7-dev (2.7.6-8ubuntu0.2) ...
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Unpacking python-dev (2.7.5-5ubuntu3) ...
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Unpacking python-pkg-resources (3.3-1ubuntu2) over (3.3-1ubuntu1) ...
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Unpacking python-setuptools (3.3-1ubuntu2) ...
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Unpacking libffi-dev:amd64 (3.1~rc1+r3.0.13-12ubuntu0.1) ...
Processing triggers for man-db (2.6.7.1-1) ...
Processing triggers for gnome-menus (3.10.1-0ubuntu2) ...
Processing triggers for desktop-file-utils (0.22-1ubuntu1) ...
Processing triggers for bamfdaemon (0.5.1+14.04.20140409-0ubuntu1) ...
Rebuilding /usr/share/applications/bamf-2.index...
Processing triggers for mime-support (3.54ubuntu1) ...
Processing triggers for doc-base (0.10.5) ...
Processing 33 changed doc-base files, 2 added doc-base files...
Processing triggers for install-info (5.2.0.dfsg.1-2) ...
Setting up libtsan0:amd64 (4.8.4-2ubuntu1~14.04.3) ...
Setting up libquadmath0:amd64 (4.8.4-2ubuntu1~14.04.3) ...
Setting up libitm1:amd64 (4.8.4-2ubuntu1~14.04.3) ...
Setting up libgomp1:amd64 (4.8.4-2ubuntu1~14.04.3) ...
Setting up libatomic1:amd64 (4.8.4-2ubuntu1~14.04.3) ...
Setting up libasan0:amd64 (4.8.4-2ubuntu1~14.04.3) ...
Setting up cpp-4.8 (4.8.4-2ubuntu1~14.04.3) ...
Setting up libgcc-4.8-dev:amd64 (4.8.4-2ubuntu1~14.04.3) ...
Setting up gcc-4.8 (4.8.4-2ubuntu1~14.04.3) ...
Setting up libexpat1:amd64 (2.1.0-4ubuntu1.3) ...
Setting up libffi6:amd64 (3.1~rc1+r3.0.13-12ubuntu0.1) ...
Setting up libssl1.0.0:amd64 (1.0.1f-1ubuntu2.19) ...
Setting up libpython2.7-minimal:amd64 (2.7.6-8ubuntu0.2) ...
Setting up python2.7-minimal (2.7.6-8ubuntu0.2) ...
Setting up libpython2.7-stdlib:amd64 (2.7.6-8ubuntu0.2) ...
Setting up python2.7 (2.7.6-8ubuntu0.2) ...
Setting up libpython2.7:amd64 (2.7.6-8ubuntu0.2) ...
Setting up libexpat1-dev:amd64 (2.1.0-4ubuntu1.3) ...
Setting up libpython2.7-dev:amd64 (2.7.6-8ubuntu0.2) ...
Setting up libstdc++-4.8-dev:amd64 (4.8.4-2ubuntu1~14.04.3) ...
Setting up g++-4.8 (4.8.4-2ubuntu1~14.04.3) ...
Setting up g++ (4:4.8.2-1ubuntu6) ...
update-alternatives: using /usr/bin/g++ to provide /usr/bin/c++ (c++) in auto mode
Setting up libdpkg-perl (1.17.5ubuntu5.7) ...
Setting up dpkg-dev (1.17.5ubuntu5.7) ...
Setting up build-essential (11.6ubuntu6) ...
Setting up libfakeroot:amd64 (1.20-3ubuntu2) ...
Setting up fakeroot (1.20-3ubuntu2) ...
update-alternatives: using /usr/bin/fakeroot-sysv to provide /usr/bin/fakeroot (fakeroot) in auto mode
Setting up liberror-perl (0.17-1.1) ...
Setting up git-man (1:1.9.1-1ubuntu0.3) ...
Setting up git (1:1.9.1-1ubuntu0.3) ...
Setting up libalgorithm-diff-perl (1.19.02-3) ...
Setting up libalgorithm-diff-xs-perl (0.04-2build4) ...
Setting up libalgorithm-merge-perl (0.08-2) ...
Setting up libpython-dev:amd64 (2.7.5-5ubuntu3) ...
Setting up zlib1g-dev:amd64 (1:1.2.8.dfsg-1ubuntu1) ...
Setting up libssl-dev:amd64 (1.0.1f-1ubuntu2.19) ...
Setting up libssl-doc (1.0.1f-1ubuntu2.19) ...
Setting up python2.7-dev (2.7.6-8ubuntu0.2) ...
Setting up python-dev (2.7.5-5ubuntu3) ...
Setting up python-pkg-resources (3.3-1ubuntu2) ...
Setting up python-setuptools (3.3-1ubuntu2) ...
Setting up libffi-dev:amd64 (3.1~rc1+r3.0.13-12ubuntu0.1) ...
Processing triggers for libc-bin (2.19-0ubuntu6) ...
--2016-08-16 12:15:13--  https://bootstrap.pypa.io/get-pip.py
Resolving bootstrap.pypa.io (bootstrap.pypa.io)... 151.101.16.175
Connecting to bootstrap.pypa.io (bootstrap.pypa.io)|151.101.16.175|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1524722 (1.5M) [text/x-python]
Saving to: ‘get-pip.py’

100%[======================================>] 1,524,722   49.2KB/s   in 72s    

2016-08-16 12:16:26 (20.7 KB/s) - ‘get-pip.py’ saved [1524722/1524722]

The directory '/home/fikru/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/home/fikru/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Collecting pip
/tmp/tmpQexPmn/pip.zip/pip/_vendor/requests/packages/urllib3/util/ssl_.py:318: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#snimissingwarning.
/tmp/tmpQexPmn/pip.zip/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  Downloading pip-8.1.2-py2.py3-none-any.whl (1.2MB)
    100% |████████████████████████████████| 1.2MB 19kB/s 
Collecting wheel
  Downloading wheel-0.29.0-py2.py3-none-any.whl (66kB)
    100% |████████████████████████████████| 71kB 28kB/s 
Installing collected packages: pip, wheel
Successfully installed pip-8.1.2 wheel-0.29.0
/tmp/tmpQexPmn/pip.zip/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
The directory '/home/fikru/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/home/fikru/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
/usr/local/lib/python2.7/dist-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:318: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#snimissingwarning.
  SNIMissingWarning
/usr/local/lib/python2.7/dist-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
Requirement already up-to-date: pip in /usr/local/lib/python2.7/dist-packages
Collecting setuptools
  Downloading setuptools-25.2.0-py2.py3-none-any.whl (442kB)
    100% |████████████████████████████████| 450kB 30kB/s 
Installing collected packages: setuptools
  Found existing installation: setuptools 3.3
    Uninstalling setuptools-3.3:
      Successfully uninstalled setuptools-3.3
Successfully installed setuptools-25.2.0
/usr/local/lib/python2.7/dist-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
The directory '/home/fikru/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/home/fikru/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Collecting ansible==2.0.2.0
/usr/local/lib/python2.7/dist-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:318: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#snimissingwarning.
  SNIMissingWarning
/usr/local/lib/python2.7/dist-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
  Downloading ansible-2.0.2.0.tar.gz (1.5MB)
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Collecting paramiko (from ansible==2.0.2.0)
  Downloading paramiko-2.0.2-py2.py3-none-any.whl (171kB)
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Collecting jinja2 (from ansible==2.0.2.0)
  Downloading Jinja2-2.8-py2.py3-none-any.whl (263kB)
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Collecting PyYAML (from ansible==2.0.2.0)
  Downloading PyYAML-3.11.zip (371kB)
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Requirement already satisfied (use --upgrade to upgrade): setuptools in /usr/local/lib/python2.7/dist-packages (from ansible==2.0.2.0)
Requirement already satisfied (use --upgrade to upgrade): pycrypto>=2.6 in /usr/lib/python2.7/dist-packages (from ansible==2.0.2.0)
Collecting cryptography>=1.1 (from paramiko->ansible==2.0.2.0)
  Downloading cryptography-1.4.tar.gz (399kB)
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Collecting pyasn1>=0.1.7 (from paramiko->ansible==2.0.2.0)
  Downloading pyasn1-0.1.9-py2.py3-none-any.whl
Collecting MarkupSafe (from jinja2->ansible==2.0.2.0)
  Downloading MarkupSafe-0.23.tar.gz
Collecting idna>=2.0 (from cryptography>=1.1->paramiko->ansible==2.0.2.0)
  Downloading idna-2.1-py2.py3-none-any.whl (54kB)
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Requirement already satisfied (use --upgrade to upgrade): six>=1.4.1 in /usr/lib/python2.7/dist-packages (from cryptography>=1.1->paramiko->ansible==2.0.2.0)
Collecting enum34 (from cryptography>=1.1->paramiko->ansible==2.0.2.0)
  Downloading enum34-1.1.6-py2-none-any.whl
Collecting ipaddress (from cryptography>=1.1->paramiko->ansible==2.0.2.0)
  Downloading ipaddress-1.0.16-py27-none-any.whl
Collecting cffi>=1.4.1 (from cryptography>=1.1->paramiko->ansible==2.0.2.0)
  Downloading cffi-1.7.0-cp27-cp27mu-manylinux1_x86_64.whl (383kB)
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Collecting pycparser (from cffi>=1.4.1->cryptography>=1.1->paramiko->ansible==2.0.2.0)
  Downloading pycparser-2.14.tar.gz (223kB)
    100% |████████████████████████████████| 225kB 52kB/s 
Installing collected packages: idna, pyasn1, enum34, ipaddress, pycparser, cffi, cryptography, paramiko, MarkupSafe, jinja2, PyYAML, ansible
  Running setup.py install for pycparser ... done
  Running setup.py install for cryptography ... done
  Running setup.py install for MarkupSafe ... done
  Running setup.py install for PyYAML ... done
  Running setup.py install for ansible ... done
Successfully installed MarkupSafe-0.23 PyYAML-3.11 ansible-2.0.2.0 cffi-1.7.0 cryptography-1.4 enum34-1.1.6 idna-2.1 ipaddress-1.0.16 jinja2-2.8 paramiko-2.0.2 pyasn1-0.1.9 pycparser-2.14
/usr/local/lib/python2.7/dist-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
Cloning into '/tmp/.bench'...
remote: Counting objects: 165, done.
remote: Compressing objects: 100% (146/146), done.
remote: Total 165 (delta 3), reused 106 (delta 1), pack-reused 0
Receiving objects: 100% (165/165), 7.06 MiB | 31.00 KiB/s, done.
Resolving deltas: 100% (3/3), done.
Checking connectivity... done.
 [WARNING]: Host file not found: /etc/ansible/hosts

 [WARNING]: provided hosts list is empty, only localhost is available


PLAY [localhost] ***************************************************************

TASK [setup] *******************************************************************
ok: [localhost]

TASK [Create user] *************************************************************
changed: [localhost]

TASK [Set home folder perms] ***************************************************
ok: [localhost]

TASK [Set home folder perms] ***************************************************
skipping: [localhost]

TASK [Set /tmp/.bench folder perms] ********************************************
changed: [localhost]
 [WARNING]: Consider using file module with owner rather than running chown


PLAY RECAP *********************************************************************
localhost                  : ok=4    changed=2    unreachable=0    failed=0   

Please enter mysql root password: 
Re-enter mysql root password: 
Please enter Administrator password: 
Re-enter Administrator password: 
 [WARNING]: Host file not found: /etc/ansible/hosts

 [WARNING]: provided hosts list is empty, only localhost is available


PLAY [localhost] ***************************************************************

TASK [setup] *******************************************************************
ok: [localhost]

PLAY [localhost] ***************************************************************

TASK [setup] *******************************************************************
ok: [localhost]

TASK [install prequisites] *****************************************************
skipping: [localhost] => (item=cmake) 
skipping: [localhost] => (item=redis) 
skipping: [localhost] => (item=mariadb) 
skipping: [localhost] => (item=nodejs) 

TASK [cask installs] ***********************************************************
skipping: [localhost] => (item=wkhtmltopdf) 

TASK [include] *****************************************************************
skipping: [localhost]

TASK [include] *****************************************************************
skipping: [localhost]

TASK [include] *****************************************************************
skipping: [localhost]

PLAY [localhost] ***************************************************************

TASK [setup] *******************************************************************
ok: [localhost]

TASK [install prequisites] *****************************************************
changed: [localhost] => (item=[u'build-essential', u'redis-server', u'software-properties-common', u'libxrender1', u'libxext6', u'xfonts-75dpi', u'xfonts-base', u'libjpeg8-dev', u'zlib1g-dev', u'libfreetype6-dev', u'liblcms2-dev', u'libwebp-dev', u'python-tk'])

TASK [install pillow prerequisites for Ubuntu < 14.04] *************************
skipping: [localhost] => (item=[]) 

TASK [install pillow prerequisites for Ubuntu >= 14.04] ************************
changed: [localhost] => (item=[u'libtiff5-dev', u'tcl8.6-dev', u'tk8.6-dev'])

TASK [Get nodejs 6.x bash script] **********************************************
changed: [localhost]

TASK [Run nodejs bash script] **************************************************
changed: [localhost]

TASK [Install nodejs 6.x] ******************************************************
changed: [localhost]

TASK [include] *****************************************************************
included: /tmp/.bench/playbooks/develop/includes/mariadb_ubuntu.yml for localhost

TASK [Add apt key for mariadb for Ubuntu < 16.04] ******************************
changed: [localhost]

TASK [Add apt key for mariadb for Ubuntu >= 16.04] *****************************
skipping: [localhost]

TASK [Add apt repository] ******************************************************
changed: [localhost]

TASK [Unattended package installation] *****************************************
changed: [localhost]

TASK [apt-get install] *********************************************************
changed: [localhost] => (item=[u'mariadb-server', u'mariadb-client', u'mariadb-common', u'libmariadbclient-dev'])

TASK [include] *****************************************************************
included: /tmp/.bench/playbooks/develop/includes/wkhtmltopdf_ubuntu_debian.yml for localhost

TASK [Download wkhtmltopdf] ****************************************************
fatal: [localhost]: FAILED! => {"changed": false, "failed": true, "msg": "failed to create temporary content file: timed out"}
    to retry, use: --limit @develop/install.retry

PLAY RECAP *********************************************************************
localhost                  : ok=14   changed=9    unreachable=0    failed=1   

Traceback (most recent call last):
  File "install.py", line 342, in <module>
    install_bench(args)
  File "install.py", line 108, in install_bench
    run_playbook('develop/install.yml', sudo=True, extra_vars=extra_vars)
  File "install.py", line 292, in run_playbook
    success = subprocess.check_call(args, cwd=os.path.join(cwd, 'playbooks'))
  File "/usr/lib/python2.7/subprocess.py", line 540, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['ansible-playbook', '-c', 'local', 'develop/install.yml', '-e', '@/tmp/extra_vars.json', '--become', '--become-user=fikru']' returned non-zero exit status 2
fikru@fikru-OptiPlex-7020:~$ ^C

Hmm, can you just rerun the installer?

i have tried it again but brings the same error?
what shall i do?