ubuntu-12.04

问题 I followed this tutorial below: https://www.digitalocean.com/community/articles/how-to-install-ruby-on-rails-on-ubuntu-12-04-lts-precise-pangolin-with-rvm This worked perfectly for me; however, I have one small problem? Each time I open a new terminal I have to run this command in order for rails to work: source ~/.rvm/scripts/rvm What is the problem and why is rvm not recognized This is what I see after I open a new terminal and verify rails: robert@rob:~$ rails -v The program 'rails' is

问题 I'm trying to debug a segfault i get in a multithreaded, qt webkit application. I installed python-dbg for the purpose of giving me pretty printing in gdb and get the following error on start python2.7-dbg node.py Traceback (most recent call last): File "node.py", line 4, in <module> import msgpack File "/usr/lib/pymodules/python2.7/msgpack/__init__.py", line 3, in <module> from msgpack._msgpack import * ImportError: /usr/lib/pymodules/python2.7/msgpack/_msgpack.so: undefined symbol: Py

问题 I've installed Eclipse (Juno) on Ubuntu Precise and am unable to use Eclipse's internal web browser. I'm getting this error: SWT Browser control is not available I've searched around and haven't found a solution that works. Thanks for your help! Mike 回答1: I did find a solution which worked: sudo apt-get install libwebkitgtk-1.0-0 I'm not sure why, though. Mike 回答2: Under Linux, the SWT browser widget can either use Mozilla XULRunner or Webkit 1. I have had version conflicts between the web

问题 I installed fresh RabbitMQ 3.1.3 on ubuntu 12.04.2 LTS by apt-get, and try to start consumers on the same server, but I have connection problem: [PhpAmqpLib\Exception\AMQPRuntimeException] Error Connecting to server(113): No route to host There is status of working server: Status of node rabbit@ns1 ... [{pid,2106}, {running_applications,[{rabbit,"RabbitMQ","3.1.3"}, {mnesia,"MNESIA CXC 138 12","4.5"}, {os_mon,"CPO CXC 138 46","2.2.7"}, {xmerl,"XML parser","1.2.10"}, {sasl,"SASL CXC 138 11","2

问题 I've followed the installation instructions on: http://wiki.openstreetmap.org/wiki/Overpass_API/install Initially everything worked flawless, but I would like to try and use my own custom map, BUT when I killed the dispatcher process nothing works. This is with the original database and not my custom map. I tried to clean everything and install from scratch, this also worked flawless, but a simple kill on the dispatcher make everything crash from there on. I currently get the error message

问题 I'm having problems with provisioning new Vagrant instances. I've used the exact same configuration before without problems. I cannot figure out what's causing the problems when it used to work. Vagrantfile # -*- mode: ruby -*- # vi: set ft=ruby : # Vagrantfile API/syntax version. Don't touch unless you know what you're doing! VAGRANTFILE_API_VERSION = "2" Vagrant.configure(VAGRANTFILE_API_VERSION) do |config| config.vm.box = "precise64" config.vm.box_url = "http://files.vagrantup.com

问题 I'm having problems with provisioning new Vagrant instances. I've used the exact same configuration before without problems. I cannot figure out what's causing the problems when it used to work. Vagrantfile # -*- mode: ruby -*- # vi: set ft=ruby : # Vagrantfile API/syntax version. Don't touch unless you know what you're doing! VAGRANTFILE_API_VERSION = "2" Vagrant.configure(VAGRANTFILE_API_VERSION) do |config| config.vm.box = "precise64" config.vm.box_url = "http://files.vagrantup.com

问题 This question already has answers here : Error: m2e Install In Eclipse (11 answers) Closed 5 years ago . I'm working on Eclipse 3.7 (indigo) on Ubuntu 12.04 LTS, and I am trying to install the Maven plugin. Following this page, I added http://download.eclipse.org/technology/m2e/releases to the Eclipse Install new software prompt box. It recognised the URL and showed "Maven Integration for Eclipse" But when I click on Next, it gives this error. Cannot complete the install because one or more

问题 So after I have played with the Network Spoofer developed by Digitalsquid (http://digitalsquid.co.uk/netspoof/), I have been trying to get a better understanding of its internal working by writing a c program that does something similar. My program currently takes in 4 parameters - source ip, source mac, victim ip, and victim mac - and send an ARP reply packet with them. When testing the program on my home network, I would do something like setting the source ip to be the router's ip, source

问题 I'm trying to install ODBC on Ubuntu 12.04 for the purpose of using it with Zabbix . I installed unixODBC as per these Zabbix instructions and modified my /etc/odbc.ini to look like this: [eyatest] Description = MySQL connection to 'dbname' database Driver = MySQL Database = dbname Server = localhost UserName = root Password = **** Port = 3306 Socket = /var/lib/mysql/mysql.sock But when I try connecting with isql I get the error in the title of this question: sudo isql -v eyatest [IM002]