I am trying out Lazarus 0.9.30 and on trying to install a component package I get this error during the installation phase after the package has been compiled.

 componenttreeview.pas(44,18) Fatal: Can't find unit ComponentTreeView used
by ObjectInspector

The aforementioned file is sitting blissfully in C:\lazarus930\ideintf.

Is it a known issue, or could it have something to do with the package i am trying to compile: KGridLaz from www.tkweb.eu?

Has the package the dependency IDEIntf?

Mattias

Its dependencies are DBFLaz, Printer4Lazarus, LCL(>-1.0)

What is the search path "Other source files" of the package?

Mattias

Other Sources is blank

Other Unit Files is ..\..\source

I also tried to install Indy and the same error comes up.

componenttreeview.ppu is present in the units\i386 directory

Good.

I also tried to install Indy and the same error comes up. componenttreeview.ppu is present in the units\i386 directory

Do you mean <lazaruspath>\ideintf\units\i386 ?

Mattias

[...] > > I also tried to install Indy and the same error comes up.

Do you know about the include file clashes of Indy? This creates such errors.

> > componenttreeview.ppu is present in the units\i386 directory

Compile with -vut to find out which include file conflicts and rename it.

Mattias

The problem appeared before I added Indy to the system.

I guess that would be ticking -vu and -vt in the Verbosity options Can the -vut be set for Environment itself?
The problem appears to lie in the package itself, it appears to be in the environment.

In my last problem involving Indy,
http://lists.lazarus.freepascal.org/pipermail/lazarus/2011-March/061679.html, I had to check the files in the -pcp directory and remove all references to directories outside the Lazarus installation. I had quite a few and the directories had gotten mixed up. It appears that when I copied projects from the old installations to the new ones, the directories linked with projects got copied to the -pcp folders in the new installation and caused the problems with Indy and some other packages. This appears to happen even if you just open project related to the old installations.

I suspect that if you are not careful about how you set the search options in packages or projects, some of their directories will get copied to your main installations settings, even though the come from a different component tree.

I have searched the -pcp folder for directories related to the pre-existing installations but haven't found any.

I will try your suggestion to see.

Yes, in your fpc.cfg, but then you get a lot of output, so only activate this when you have such a problem.

I can't follow you here. What do you mean with directories got copied? The IDE does not copy directories. But when you set wrong paths the compiler will create duplicate ppu files.

I suspect that if you are not careful about how you set the search options in packages or projects, some of their directories will get copied to your main installations settings, even though the come from a different component tree.

Well, yes, you can do havoc with search paths.
The wiki lists more than 20 ways how to mess up your system leading to the "unit not found" error.
I already added some tools for some cases and I plan an expert system to find misconfigurations in search paths.

I have searched the -pcp folder for directories related to the pre-existing installations but haven't found any. I will try your suggestion to see.

Mattias

After following your suggestion it appears that the packages are added twice to staticpackages.inc.

kgrid uses printer4lazarus and dbflaz, and they appear twice in the staticpackages.inc. I opened the file and realized that they are duplicated.

I went into the IDE and removed them ie uninstalled them, yet when it comes to building the IDE again they are duplicated yet again in staticpackages.inc.

The IDE appears to be generating the error that staticpackages.inc cannot be found, when it appears that the error is a duplicate file name error.

Another thing I want to ask - is the -pcp directory the normal location for staticpackages.inc? I thought it would be in the installation directory.

staticpackages.inc(4,16) Error: Duplicate identifier "PRINTER4LAZARUS"
staticpackages.inc(4,16) Error: Duplicate identifier "printer4lazarus"
staticpackages.inc(8,7) Error: Duplicate identifier "DBFLAZ"
staticpackages.inc(8,7) Error: Duplicate identifier "dbflaz"
componenttreeview.pas(44,18) Fatal: Can't find unit ComponentTreeView used
by ObjectInspector

Darn.
What Lazarus version do you use exactly?

No, the user can compile a new IDE with his own set of installed packages.

staticpackages.inc(4,16) Error: Duplicate identifier "PRINTER4LAZARUS" staticpackages.inc(4,16) Error: Duplicate identifier "printer4lazarus" staticpackages.inc(8,7) Error: Duplicate identifier "DBFLAZ" staticpackages.inc(8,7) Error: Duplicate identifier "dbflaz"

Hmm, seems like somewhere a package name is not compared case insensitive.

componenttreeview.pas(44,18) Fatal: Can't find unit ComponentTreeView used by ObjectInspector

Mattias

It is the new 0.9.30 available at sourceforge

Version #: 0.9.30
Date: 2011-03-08
FPC Version: 2.4.2
SVN Revision: 29749
i386-win32-2in32/win64

I have succeeded by following these steps.

I removed printer4lazarus and dbflaz from the package list and saved it. Then I closed the IDE and reopened it. Doing a build all from that state worked with Kgrid installing successfully.
I have also been able to install the Indy package after that without any problems.

Thanks for the help. I think the tool you are developing will come in very useful. It can't arrive too soon.