Installing lastest quantum

You'll have to give us more details than that to help you...What kind of issues? Please provide your localrc and logs.

Please suggest:

Here is the localrc:

disable_service n-net
#enable_service g-api
enable_service rabbit
LOG=True
enable_service q-svc
enable_service q-agt
enable_service q-dhcp
enable_service q-l3
enable_service q-meta
enable_service quantum
# Optional, to enable tempest configuration as part of devstack
#enable_service tempest
ADMIN_PASSWORD=openstack
MYSQL_PASSWORD=openstack
RABBIT_PASSWORD=openstack
SERVICE_PASSWORD=openstack
SERVICE_TOKEN=openstack
MYSQL_PASSWORD=openstack
DATABASE_PASSWORD=openstack
LOG_FILE=/opt/stack/devstack.log
SCREEN_LOGDIR=/opt/stack/logs
IMAGE_URLS=http://cloud-images.ubuntu.com/precise/current/precise-server-cloudimg-i386-disk1.img
# installed in this dir
DEST=/opt/stack

Here are the errors I see:

+ /opt/stack/devstack/tools/create_userrc.sh -PA --target-dir /opt/stack/devstack/accrcERROR: Failed to update the root certificate: /opt/stack/devstack/accrc/cacert.pem
+-----------+----------------------------------+
| Property | Value |
+-----------+----------------------------------+
| access | 6f141d3bc4524166be1b0aaddd3f0355 |
| secret | 9494d8bbee0648e684084b48f5247bf7 |
| tenant_id | e941fb6d151d4ef78bbee5297aeab669 || user_id | 4486dc7dfb074bf1b895f337317b2248 |+-----------+----------------------------------+ERROR:

...

++ local public_network_id
++ local public_router_id
++ local tenant_networks_reachable
++ local boto_instance_type=m1.tiny
+++ grep errexit
+++ set +o
++ errexit='set +o errexit'
++ set -o errexit
++ ifs='
'
++ declare -a images
++ read -r IMAGE_NAME IMAGE_UUID
+++ awk '-F|' '!/^(+--)|ID|aki|ari/ { print $3,$2 }'
+++ glance image-list --status=active
++ '[' precise-server-cloudimg-i386-disk1 = cirros-0.3.0-x86_64-uec ']'
++ images+=($IMAGE_UUID)
++ read -r IMAGE_NAME IMAGE_UUID
++ case "${#images[*]}" in
++ '[' -z '' ']'
++ image_uuid=a6f49066-a888-42ba-ae1c-d7f2eba9cbdf
++ image_uuid_alt=a6f49066-a888-42ba-ae1c-d7f2eba9cbdf
++ cp /opt/stack/tempest/etc/tempest.conf.sample /opt/stack/tempest/etc/tempest.conf
++ password=openstack
++ ALT_USERNAME=alt_demo
++ ALT_TENANT_NAME=alt_demo
++ [[ -z '' ]]
++ nova flavor-create m1.nano 42 64 0 1
ERROR:
+ clean
+ local r=1
++ jobs -p
+ kill

Issue resolved after
1) installing Ubuntu Server (instead of Ubuntu Desktop)
2) Horizon issue solved after adding this patch: https://bugs.launchpad.net/horizon/+bug/1125632
   "When trying to login on dashboard I keep getting AttributeError for api.quantum."