Currently, I'm using Qt5.5 with Visual Studio 2015.
After making UI files, I want to make a .pro file using the command "qmake -project" (VS2015 environment is set). And the .pro file is generated.
After that I pass "qmake -tp vc qtexample.pro " to create visual studio project. The project is created without problem.
When I'm trying to build the project, it shows me a lot of linking errors. After googling the problem, I found a solution - to add this line "QT += core gui widgets" in the .pro file.
So, my question is: Why didn't qmake write that line in the .pro file? What's wrong here? Should I always add manually this line in the .pro file? Is there any way to avoid manually adding the line?
core and gui are added by default, however, widgets is not. This info is clearly stated in the documentation.
Related
I recently installed ComputeCpp to D:/Programs/Codeplay/ComputeCpp. Then I set ComputeCpp_DIR="D:/Programs/Codeplay/ComputeCpp" in the CMakeLists.txt file for compiling OpenCV. I use cmake-gui.exe to configure build options and to generate the project files for Visual Studio 2019.
After each time I press Configure in cmake-gui.exe, the variable ComputeCpp_DIR is reset to ComputeCpp_DIR-NOTFOUND. The value "D:/Programs/Codeplay/ComputeCpp" is correct according to the official guide at https://developer.codeplay.com/products/computecpp/ce/guides/, i.e. "This should be set to the root directory of the ComputeCpp install (i.e the directory with the folders bin, include, lib)". The specified path does not contain any white space characters either. I also tried to modify build/CMakeCache.txt directly, but cmake-gui.exe keeps resetting my setting.
I wonder why?? How can I get cmake to accept my setting, which is apparently correct.
Add an empty ComputeCppConfig.cmake file into the D:/Programs/Codeplay/ComputeCpp directory. After that cmake-gui.exe will stop overwriting your setting.
I'm want to compile meshlab(http://sourceforge.net/p/meshlab/code/HEAD/tree/) and put the generated file outside the source directory to keep the source clean. Is it possible to just specify a build directory as the way in cmake?
The answer in this post Qmake and Make using separate folders for sources and headers, requires to modify the .pro file and doesn't work in my case. Users may want to specify the build dir path as they like, right?
I think what are trying to do is a QMake Shadow Build. This question about Manually Configuring Shadow Builds in QMake should help you.
I am trying to recompile/rebuild an old application program developed on Delphi5. I used the same Delphi5 software on an XP computer.
I did some minor corrections to the codes of a couple of forms and units. When I recompile using the .dpr file it comes with a fatal message: File not found System.pas
I added in .dpr file on the link path to this file BP folder. No success and the same message. Any clue will help.
Probably Library Path is broken after running some buggy component installer. In modern IDE's look for Tools -> Options -> Library -> Library Path from main menu (should be slightly different for Delphi 5).
System.dcu file lives in $(BDS)\Lib path for Delphi 2007.
The "File not found System.pas" error often isn't really because it can't find system.pas. It's some other problem that manifests as this error.
It can be:
Duplicate Path entries in the Library Path.
Too many entries in the Library Path - I think the limit is 99.
Path to a package in Library Paths too long.
Path to a package in Library Paths corrupt.
Environmental Variables not set correctly.
and possibly more if you Google "system.pas not found"
Marjan is right.
But also add ${DELPHI}\LIB\OBJ
If you still have a dcc32.cfg with the project, or a .cfg with the project, open it up to see if the settings in there are correct. Otherwise delete the .cfg or edit it to reflect the proper path to the bin and bin\obj directories.
A .dpr file is the main project file for a Delphi 2,3,4,5,6,7 project.
You have not given any details like WHAT WAY OF BUILDING SOMETHING of delphi you're using (the code is Delphi 5 level code, but you are not telling me for example, if you built the project inside the Delphi IDE or from the command line compiler DCC32), and what other files you have installed. You haven't mentioned if the library paths and so on are configured (either for the IDE, or for the command line environment, both of which are separate tasks).
An inability to find System.pas suggests to me that you might be running the command line compiler (Dcc32) instead of the IDE to build the project, and you have forgotten to mention that. That usually means you have to set up the Options (dcc32.dof) file for Delphi, so that command line building with Dcc32 can work.
What exactly do you mean by "When I compile with the .dpr file"? Instead of making people guess, show the commands you typed, exactly, and the error message, exactly. If it helps, use screenshots or text grabs.
I am using VS2010 with OpenCV 2.3.1, and opencv is installed by using OpenCV-2.3.1-win-superpack. Now I want to understand the facedetect sample (opencv\samples\c\facedetect.cpp) in detail, I wanna know how to process the specific xml feature file (haarcascade_frontalface_alt.xml), and how to decide which feature to be used. These are all
in the CascadeClassifier class, but when I use "go to definition", the result file is a .hpp
head file, so where is the implementation file? when I use vs2010 to debug, the debugger can not locate the implementation file either. some advice?
Add the opencv\modules directory to the 'source' entry in the vs-directories tab in the project settings. And make sure the pdb files are in the same directory as the debug dlls
Got this error whenever I try to compile something: "F1027 Unit not found: 'System.pas' or binary equivalents (.dcu)".
Got it after installing a component, removed it, reinstalled RAD studio, but still same.
In order to get it fixed, I need the Library path and browsing path. Please anybody post yours so I get it working.
A workaround I found is including the path "$(BDS)\lib\win32\debug" to Library path, but this is not the correct way. So I need your paths. Thanks!
This is from the HKLM\Software\Embarcadero\BDS\8.0\Library key in the registry - you can save it to a .reg file and then import it (making any necessary fixes to the paths first, of course):
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Embarcadero\BDS\8.0\Library]
"Browsing Path"="$(BDS)\\SOURCE\\VCL;$(BDS)\\source\\rtl\\common;$(BDS)\\SOURCE\\RTL\\SYS;$(BDS)\\source\\rtl\\win;$(BDS)\\source\\ToolsAPI;$(BDS)\\SOURCE\\IBX;$(BDS)\\source\\Internet;$(BDS)\\SOURCE\\PROPERTY EDITORS;$(BDS)\\source\\soap;$(BDS)\\SOURCE\\XML;$(BDS)\\source\\db;$(BDS)\\source\\Indy10\\Core;$(BDS)\\source\\Indy10\\System;$(BDS)\\source\\Indy10\\Protocols;$(BDS)\\source\\database;"
"Debug DCU Path"="$(BDSLIB)\\$(Platform)\\debug;$(BDS)\\RaveReports\\Lib"
"HPP Output Directory"="$(BDSCOMMONDIR)\\hpp"
"Language Library Path"="$(BDSLIB)\\$(Platform)\\release\\$(LANGDIR);$(BDS)\\lib\\$(LANGDIR)"
"Package DCP Output"="$(BDSCOMMONDIR)\\Dcp"
"Package DPL Output"="$(BDSCOMMONDIR)\\Bpl"
"Package Search Path"="$(BDSCOMMONDIR)\\Bpl"
"Translated Debug Library Path"="$(BDSLIB)\\$(Platform)\\debug\\$(LANGDIR)"
"Translated Library Path"="$(BDSLIB)\\$(Platform)\\release\\$(LANGDIR)"
"Translated Resource Path"="$(BDSLIB)\\$(Platform)\\release\\$(LANGDIR)"
"Search Path"="$(BDSLIB)\\$(Platform)\\release;$(BDSUSERDIR)\\Imports;$(BDS)\\Imports;$(BDSCOMMONDIR)\\Dcp;$(BDS)\\include;C:\\Program Files\\Raize\\CS4\\Lib\\RS-XE;;$(BDS)\\RaveReports\\Lib"
For MSBuild to work properly (and for project configurations), you need to make sure the following environmental variable is set properly:
PLATFORM=ANYCPU
Top Line of the library path:
$(BDSLIB)\$(Platform)\release
Some installers mistakenly parse this as two lines and split them out.
Check on your Delphi IDE menu: Tools * Options, to see what is defined.
My default installation has 2 important "Environment Variables",
BDSLIB, defined as "c:\program files\embarcadero\rad studio\8.0\lib"
Platform, defined as "Win32".
On that same form, under Library, is defined
Library path:, the path begins "$(BDSLIB)\$(Platform)\release;...
That should equate to C:\program files\embarcadero\rad studio\8.0\lib\Win32\release", which is where you should find System.dcu. Make sure that file is there. Maybe it was removed or damaged by your component work.
There is also a "Debug" directory under Win32 which should have the dcu with the debug information included. If the release dcu is missing or damaged, you can probably copy the debug version in as a quick test.
It sounds like the compiler couldn't find the dcu then also looked for the source file to recreate it. But it should normally use the dcu.
I believe the source is in PF\Embarcadero\Rad Studio\8.0\source\rtl\sys as system.pas.
All of the above is the default Delphi Options. The options can also be changed for a project, which could interfere with the above. Try the above first. Then create a new project and see if it will complile, as that will use the defaults only.
Patrick
New York
Take a look at the -cleanregistryide option on this page:
http://support.embarcadero.com/es/article/42597
It will allow you to restore the IDE's default installation paths. If you use this option, third-party add-in's would need to be reinstalled. I have experienced this problem after upgrade installations when there were installed 3rd party IDE tools.
HTH
Navid
For XE4 use this restore.reg
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Embarcadero\BDS\11.0\Library\Win32]
"Search Path"="$(BDS)\Imports;$(BDSCOMMONDIR)\Dcp;$(BDS)\include;C:\Program Files (x86)\Embarcadero\RAD Studio\11.0\lib;C:\Program Files (x86)\Embarcadero\RAD Studio\11.0\include;C:\Program Files (x86)\Embarcadero\RAD Studio\11.0\Imports;$(BDSLIB)\$(Platform)\release;$(BDSUSERDIR)\Imports;$(BDS)\Imports;$(BDSCOMMONDIR)\Dcp\$(Platform);$(BDS)\include"
You can change 11.0 to your version of Delphi