Difference between revisions of "Install on Ubuntu 11.10"
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*Remove the taskbar | *Remove the taskbar | ||
Open a terminal and try | Open a terminal and try | ||
| − | sudo | + | sudo apt-get remove appmenu-gtk3 appmenu-gtk appmenu-qt |
Give your password | Give your password | ||
These can be re-installed if needed with | These can be re-installed if needed with | ||
| − | + | sudo apt-get install appmenu-gtk3 appmenu-gtk appmenu-qt | |
*Remove the Ubuntu overlay scrollbars | *Remove the Ubuntu overlay scrollbars | ||
| − | Open | + | Open synaptic and search for liboverlay-scrollbar |
| − | + | Uninstall the 2 packages | |
| − | Uninstall the packages | + | These can be re-installed if needed with synaptic |
| − | |||
| − | These can be re-installed if needed with | ||
'''The 'blank form' project should now run with no errors.''' | '''The 'blank form' project should now run with no errors.''' | ||
Revision as of 19:16, 22 February 2012
In General
Overview
To install Lazarus you install three things:
- fpc - the Free Pascal compiler
- fpc-src - the source code for Free Pascal
- Lazarus -the IDE for Free Pascal
Versions
You must install the correct version of Free Pascal for the version of Lazarus you choose. The versions below are correct.
Ubuntu 11.10 (Oneiric Ocelot)
Matching versions of Lazarus and Free Pascal are in the repository (20/02/12). They are
- Lazarus 0.9.30-2.
- Free Pascal 2.4.4
In Synaptic it is called Lazarus 0.9.30-2Build1.
Find and install the packages
In the Software Centre search for
- IDE for FreePascal (SDK metapackage)
- Free Pascal Compiler fpc
- Free Pascal source code
With Synaptic, install everything beginning with Laz, fpc or fp.
Problem 1
Once you have installed Lazarus, it will not work. Even if you add no code at all and compile and run a 'blank form' project (having first saved it) you will get this error message:
- Remove the taskbar
Open a terminal and try
sudo apt-get remove appmenu-gtk3 appmenu-gtk appmenu-qt
Give your password These can be re-installed if needed with
sudo apt-get install appmenu-gtk3 appmenu-gtk appmenu-qt
- Remove the Ubuntu overlay scrollbars
Open synaptic and search for liboverlay-scrollbar Uninstall the 2 packages These can be re-installed if needed with synaptic
The 'blank form' project should now run with no errors.
Problem 2
If you add a button to your 'blank form' project. In the Events tab of the Object Inspector , try to open the 'Click' event handler. You will get the error message
Can't find class Classes
or
Can't find class Sysutils
Solution (10 mins): Reconfigure Lazarus as sudo
This can only be solved if you open Lazarus as sudo.
- Scan the Pascal source code
Open a terminal and start Lazarus as sudo with
gksudo StartLazarus
Give your sudo password
In Lazarus choose Environment/Rescan FPC source directory
- Rebuild Lazarus.
Open a terminal
gksudo StartLazarus
Give your sudo password
In Lazarus choose Tools/BuildLazarus with profile:Build all
Ubuntu 10.04 LTS (Lucid Lynx)
The version in this repostiory is Lazarus 0.9.28.2 which is quite old.
