Delphi XE - F1027 Unit not found: 'System.pas' or binary equivalents (.dcu) upon Activation of trial version

Question

I just purchased the full version of Delphi XE Architect after using the trial version for 30 days. I can't build anything, every time I go to build a project I get the error.

[DCC Fatal Error] MegaMainPrj.dpr(1): F1027 Unit not found: 'System.pas' or binary equivalents (.dcu)

A quick google said that the library paths were a problem and I compared what was given (in a previous stackoverflow question) with what I had in the registry, and it was identical.

What could be causing this?

EDIT: Immediatly after I get this error message the entire IDE crashes.

score 42 · Answer 1 · answered Dec 28 '11 at 01:48

42

add this : $(BDSLIB)\win32\release;

to your library path .

answered Dec 28 '11 at 01:48

user763539

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This worked for me, I accidentally remove some library folder entries. – Hein du Plessis Jun 09 '14 at 05:08
4

If it's a 64 bit thing failing to build make sure the 64 bit library path has `$(BDSLIB)\win64\release` – Warren P Feb 08 '17 at 13:11
3

This applies when one has the "stupid" idea of pressing "Delete invalid paths" from the options menu. – Leonardo Herrera Jul 29 '20 at 20:15

Ken White · Accepted Answer · 2011-04-14T00:31:33.313

Make sure you have the environmental variables set properly (Tools->Options->Environmental Variables from the IDE's main menu):

BDS=D:\Embarcadero\RAD Studio\8.0
BDSCOMMONDIR=C:\Users\Public\Documents\RAD Studio\8.0
PLATFORM=Win32

These should all be set in the System Variables section, and should have been added by the installer. (Obviously, they should point to the installation location of your XE installation - mine is installed in D:\Embarcadero\RAD Studio\8.0, as you can see.)

EDIT: I see in your comment you installed in C:\Program Files - bad idea if you're running Windows Vista or Win7 or higher. You should try installing in a different location. You can also try running the IDE as Administrator (right-click shortcut in Start->All Programs->Embarcadero->RAD Studio XE->Delphi XE, choose "Run as Administrator" from context menu). Does this change anything?

Also, you can open a free support case at Embarcadero for installation-related issues. I'd first try reinstalling in another location (running the install as Administrator, putting it in another folder, and installing for all users); if that doesn't work, open a support case. You can also post to the Embarcadero Delphi Installation forums - you'll need to have already created a user account there first to log in.

BDS=c:\program files\embarcadero\rad studio\8.0; BDSCOMMONDIR=C:\Users\Public\Documents\RAD Studio\8.0; Platform=Win32; Looks like it's correct already. — Daisetsu, Apr 14 '11 at 00:19
Running as Administrator didn't fix it. I'll uninstall, I was avoiding this because I have about a dozen third party components installed already. — Daisetsu, Apr 14 '11 at 17:07
@Daisetsu: Export the registry settings prior to uninstalling. You can edit the text .reg file, deleting stuff not related to your third party packages (including entire sections if needed), adjust paths if needed, and import back to the registry after reinstalling and running the IDE at least once. (The first run completes registry setup, adding entries not placed by the installer.) If this is more work than just reinstalling the third party stuff, then go ahead and reinstall the 3rd party stuff - use whatever method is less work and that you're comfortable with doing. :) — Ken White, Apr 14 '11 at 19:37

score 3 · Answer 3 · edited Jan 31 '13 at 08:10

3

C:\Embarcadero\RAD Studio\9.0\lib\win32\release

and

C:\Embarcadero\RAD Studio\9.0\lib\win32\debug

Both of these path have been to add in Delphi XE2 from IDE <<Tools->Options->Library->Library path>>

It's OK?

edited Jan 31 '13 at 08:10

xdazz

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answered Jan 31 '13 at 07:52

David-Star

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Mine is set to "$(BDSLIB)\$(Platform)\release", just to be sure. – T.S Jul 13 '17 at 14:46

score 3 · Answer 4 · edited May 02 '18 at 07:02

3

Goto Tools->Options->Library->Library path

and add $(BDSLIB)\win32\release

This worked in Delphi 10.2

edited May 02 '18 at 07:02

rollstuhlfahrer

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answered May 01 '18 at 14:44

Paulo Andre Pea

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Delphi 10.3 here, this worked as well. – Ivan Silkin Dec 27 '21 at 09:30

score 1 · Answer 5 · answered Mar 10 '13 at 15:51

When compiling using the command line compiler, so not from within the IDE, you can also get this error when the name of the build configuration is not "debug" and not "release".

It seems that, when using the command line compiler, it tries to find its dcus in a path under BDSLIB that it constructs using the configuration name. I had this happening when using a configuration named ReleaseHA. Note: it was not a sub configuration under "release", but an extra configuration besides "debug" and "release".

score 1 · Answer 6 · answered Jul 12 '16 at 18:48

1

Sometimes this error message occurs when we have duplicate libraries included.

Make sure that:

Tools->Options->Environmental Options->Library

and

Project->Options->Directories/Conditionals

Don't include the same paths...

answered Jul 12 '16 at 18:48

cristian.d

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score 0 · Answer 7 · answered Feb 04 '19 at 07:18

0

Running as Administrator worked for me.

answered Feb 04 '19 at 07:18

Carl Clark

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Delphi XE - F1027 Unit not found: 'System.pas' or binary equivalents (.dcu) upon Activation of trial version

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