Install on Ubuntu 11.10: what changed

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Title: Install on Ubuntu 11.10

New		Line
1	+	(Ubuntu only)
2	+
3	+	## In General
4	+
5	+	See [[Installing Lazarus on Linux]] - this page covers most of what you need for most Linux Distributions.
6	+
7	+	Warning, this page is very out of date and should be removed.
8	+
9	+	### Overview
10	+
11	+	To install Lazarus you install three things:
12	+
13	+	- fpc - the Free Pascal compiler
14	+	- fpc-src - the source code for Free Pascal
15	+	- Lazarus -the IDE for Free Pascal
16	+
17	+	### Versions
18	+
19	+	You must install the correct version of Free Pascal for the version of Lazarus you choose. The versions below are correct.
20	+
21	+	## Ubuntu 11.10 (Oneiric Ocelot)
22	+
23	+	### What you want
24	+
25	+	Matching versions of Lazarus and Free Pascal are in the repository (20/02/12). They are
26	+
27	+	- Lazarus 0.9.30-2.
28	+	- Free Pascal 2.4.4
29	+
30	+	In Synaptic they are called Lazarus 0.9.30-2Build1, fpc, and fp.
31	+
32	+	### Find and install the packages
33	+
34	+	In the Software Centre search for and install:
35	+
36	+	- IDE for FreePascal - SDK metapackage - search under lazarus
37	+	- Free Pascal - SDK metapackage - search under fpc
38	+	- FreePascal - SDK source code metapackage- search under fpc
39	+
40	+	With Synaptic, install everything beginning with Laz, fpc or fp.
41	+
42	+	### Problem 1
43	+
44	+	Once you have installed Lazarus, it will not work. Even if you add no code at all and compile and run everyone's favourite 'Blank form' project (having first saved it of course) you will get this error message:
45	+
46	+	`Project project1 raised Exception class EInterface critical with message: ....`
47	+
48	+	### Solution (10 mins): Remove the Ubuntu taskbar menu and overlay scrollbars
49	+
50	+	- Remove the taskbar
51	+
52	+	Open a terminal and try
53	+
54	+	`sudo apt-get remove appmenu-gtk3 appmenu-gtk appmenu-qt`
55	+
56	+	Give your password These can be re-installed if needed with the same command but put 'install' in place of 'remove'.
57	+
58	+	- Remove the Ubuntu overlay scrollbars
59	+
60	+	Open synaptic and search for 'liboverlay-scrollbar'.
61	+
62	+	Uninstall the 2 packages highlighted. They can be re-installed if needed with Synaptic
63	+
64	+	`You now need to restart Ubuntu and hope.`
65	+
66	+	The 'blank form' project should now run with no errors.
67	+
68	+	### Problem 2
69	+
70	+	Add a button to your 'blank form' project. In the Events tab of theObject Inspector , try to open the 'Click' event handler. You will get the error message
71	+
72	+	`unit not found: Classes`
73	+
74	+	or
75	+
76	+	`unit not found: Sysutils`
77	+
78	+	### Solution (10 mins): Reconfigure Lazarus as sudo
79	+
80	+	This can be solved as follows:
81	+
82	+	- Open Lazarus as sudo
83	+
84	+	Open a terminal and start Lazarus as sudo with
85	+
86	+	`gksudo StartLazarus`
87	+
88	+	Give your sudo password
89	+
90	+	- Rescan the Pascal source directory
91	+
92	+	In Lazarus choose
93	+
94	+	`Tools -> Rescan FPC source directory`
95	+
96	+	- Rebuild Lazarus
97	+
98	+	In Lazarus choose
99	+
100	+	`Tools -> BuildLazarus with profile:Build all`
101	+
102	+	- Close Lazarus.
103	+
104	+	You should now be able to open Lazarus normally and create a project with a button that is clickable!'
105	+
106	+	'Hello World' here we come.
107	+
108	+	Oh Joy!
109	+
110	+	### Lazarus Forum
111	+
112	+	There are several threads that are useful
113	+
114	+	[Forgetting to install Free Pascal source code](http://www.lazarus.freepascal.org/index.php/topic,16062.0.html)
115	+
116	+	[Solving problem 1](http://www.lazarus.freepascal.org/index.php/topic,14982.0.html)
117	+
118	+	[Solving problem 2](http://www.lazarus.freepascal.org/index.php/topic,14672.0.html)
119	+
120	+	[More about problem 2](http://www.lazarus.freepascal.org/index.php/topic,15005.0.html)
121	+
122	+	[Installing using debs](http://www.lazarus.freepascal.org/index.php/topic,14672.0.html)
123	+
124	+	### Video
125	+
126	+	It's in German. It is very clear. In this case, after the installation, Lazarus ran without problem - mine didn't.
127	+
128	+	[You tube showing install](http://www.youtube.com/watch?v=fgnzdegIB40)
129	+
130	+	### Problem 2 image
131	+
132	+	<figure>
133	+	<img src="LazarusErrorSmall.jpg" title="LazarusErrorSmall.jpg" />
134	+	<figcaption>LazarusErrorSmall.jpg</figcaption>
135	+	</figure>
136	+
137	+	## Ubuntu 10.04 LTS (Lucid Lynx)
138	+
139	+	The version in this repository is Lazarus 0.9.28.2 which is quite old. It installs via synaptic and it then works.
140	+
141	+	### Install from .deb files
142	+
143	+	If you want to install a newer version using .deb files then see the wiki page
144	+
145	+	[[Install on Ubuntu from .deb files\|How to install from .deb files]]
146	+
147	+	## See also
148	+
149	+	- [[Install on Ubuntu from .deb files]]
150	+
151	+	---
152	+	From the Free Pascal wiki, page "Install on Ubuntu 11.10", as it stood on 2021-01-17 after a change by Dbannon, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's [[Licensing]] page. If you have concerns about this material, [message the admin](/wiki-contact).
153	+	Category: Install
154	+	Category: Ubuntu

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