How to solve error LookupError: Entry point ‘main’ not found in egg ‘tutorial’ on Pyramid projects

This week I started studying pyramid. Following the great tutorial they provide, I got stuck with the following error:

Continue reading “How to solve error LookupError: Entry point ‘main’ not found in egg ‘tutorial’ on Pyramid projects”

How to create your own plugins for your Ruby programs

In the post How to add your own scripts to Ruby loader path and solve load errors I solved a very annoying problem for newbies (like me).

With that issue addressed I continued to develop my project. It basically is composed by a main file that loads all scripts from lib sub-folder and executes some methods. Continue reading “How to create your own plugins for your Ruby programs”

How to solve error rake aborted! Unknown database ‘mysite_development’

In the beginning of my Ruby On Rails project I tried to run migration command

and got the error bellow:

Continue reading “How to solve error rake aborted! Unknown database ‘mysite_development’”

How to solve Cannot install Guest Addtions: VERR_PDM_MEDIA_LOCKED

Today I’ve updated my VirtualBox to version 4.1.16-78094. When I tried to install the new version of Guest Additions, I got the error message

as you can see in the picture 1 bellow Continue reading “How to solve Cannot install Guest Addtions: VERR_PDM_MEDIA_LOCKED”