Problem installing Free Pascal 2.4.4 on Ubuntu 10.04 (Lucid).

[Rails]

I'm not certain you want to build fpc at this point. Look at my last post. I just edited it with info on Debian fpc source packages while you were posting. I would try that first.

[Rails]

You may also just be able to copy that fpcsrc folder from your download straight to /usr/share. Take a look and see if it contains folders as I described in my earlier post. It may be all you need.

[HappyLarry]

First the good news.
I downloaded fpc-source -2.4.4_2.4.4._all.deb from Debian and installed it with dpkg and I am now the proud owner of the folder
/usr.share/fpcsrc.
When I start Lazarus, the error about not finding the fpcsrc has gone, and so it looks as if fpcsrc is installed. In fact, I checked in Synaptic and found the check box for fpcsrc was green - it's installed.

Now the bad news.
When I start Lazarus and make a new application, save and run, I get the message

Fatal. Can't find interfaces used by project1

[Rails]

I got that when I tried to compile with the QT widget set selected instead of the default GTK2 set. I didn't pursue it, since I was just playing around. Check and see what widget set you have selected. Look in Project/Options/Compiler Options/Paths and go to the drop down box near the bottom of the page.

Try changing between GTK2 and QT and see what happens.

[BigChimp]

http://wiki.lazarus.freepascal.org/Lazarus_Faq#When_I_try_to_compile_a_project.2C_I_get_an_error_message_.22Cannot_find_Unit_interfaces.22.

Keep at, you'll get there in the end!

[HappyLarry]

@BigChimp
Thanks for the encouragement. I need it. I found a tip on the wiki

Can't find unit interfaces
    * Make sure the 'interfaces.ppu' is in the unit path, and the 'interfaces.pp' is not in the unit path. And that you only have one 'interfaces.ppu' in the unit path. You can see the unit path in Source Editor -> Right mouse click -> File Settings ... -> Unit Info -> Unit Paths;

It isn't there.
What is the path of interfaces.ppu?

[HappyLarry]

@Rails
I have

default(GTK2)

selected which I think is right because I use a Gnome interface (?).

I changed to qt anyway as you suggested, reloaded Lazarus but with the same result - Can't find Interfaces.

[Rails]

From my installation:

/usr/lib/lazarus/0.9.30/lcl/units/i386-linux/gtk2/interfaces.ppu
/usr/lib/lazarus/0.9.30/lcl/units/i386-linux/nogui/interfaces.ppu

You may have to rebuild Lazarus, which is a routine procedure. You probably should rescan the fpc source directory first, since you just installed the source. Both are done from the IDE.

[HappyLarry]

Thanks.
From the wiki  entry

You can see the unit path in Source Editor -> Right mouse click -> File Settings ... -> Unit Info -> Unit Paths;

I can see the paths and interfaces.ppu is not there. Unfortunately I can't add a new path because it is just an information box.
Any ideas?

[Rails]

I would start by rebuilding Lazarus following the instructions in the link provided by BigChimp. Rescan the source directory first, just in case (Environment menu).

[HappyLarry]

Rescan: done.

Rebuild: Using 'Tools/Build Lazarus with Profile Build all'

Error message

This set of options to build Lazarus is not supported by this installation.
The directory "/usr/lib/lazarus/0.9.30/lcl" is not writable.
See the Lazarus website for other ways to install Lazarus

[BigChimp]

Off the top of my head, I suppose you'll have to run this with Lazarus started as root, e.g. by doing gksudo startlazarus or gksudo lazarus in a GUI terminal window, IIRC...

(Not that knowledgeable about rebuilding Lazarus/fpc on linux)

[Rails]

I give my /usr/lib/lazarus/0.9.30/ diredtory and everything under it write permission for "Others" while I rebuild Laz.   Starting Laz under sudo gave me all kinds of problems.

Sorry, forgot about that part.

[HappyLarry]

Ran gksudo startlazarus

Tried to write 'Hello World' program and ...
it compiled and ran.
Hard to believe I know  but it's true. If I find other problems I wiil report back.

@Rails and BigChimp
Brilliant.  If I get my  book 'Install Lazarus 0.9.30 on Lucid Lynx in under 3 weeks'  published, you'll be on 5% each (joke).

Ok 10%

Cheers.

[Rails]

Great news.   

I'm off to go paint some stuff. Not my idea of a fun day, but its got to be done.

Cheers.