Qt crashes when I try to execute any program - c++

I've looked for an answer during a few days and I haven't found anything similar anywhere;
I downloaded Qt from the official website, installed it and apparently compiling is fine. But whenever I try to execute (Ctrl+R) any app, even the basic one which only displays a window or widget, QtCreator itself crashes. No error message, nothing, just crashing.
I've tried to redownload and reinstall it a few times with different settings, but nothing will do.
I'm running QtCreator on Windows 7 64 bits. I'll try on my laptop which is also running windows and will update if I find anything.
Any help would be appreciated, I need to start a project as soon as possible. I'm relatively new to QT and if you need info on anything just ask me. Thanks :)

Use dependency walker, http://www.dependencywalker.com/
and post any missing dependencies. It is possible some install targets or options are missing from when you installed QtCreator, which can be resolved with the maintenance tool in the same directory you installed Qt.
Also, are you using the Visual Studio compiler(must have Visual Studio installed separately, and mark the option during install), or the Ming compiler(2 options checked during install or maintenance)?

Check if your antivirus is locking it, I had a similar issue time ago and it was due to antivirus (Avast specifically). Disable antivirus' realtime shields and try to execute a basic app.

It is necessary to use QtCreator? I use QtDesigner snd VS2013 and things go very well. :)
check this thread Qt Creator Plain C++ Project won't run/debug... and this C++ - QtCreator doesn't show any output

Related

Installer crashes installing qt and qt creator on ubuntu

I'm attempting to install Qt 5.11.2 and Qt creator through the .run installer found on their website.
I can get through the installer just fine, but when the installer finishes downloading and starts installing to my filesystem it always hangs at the exact same point.
Specifically, when its writing /Qt5.11.2/Src/qtwebengine portions. However I don't believe this is the issue because even if I uncheck the box for web engine before installing it still crashes at a specific point somewhere else. Ubuntu gives me the option to force close every time, I have waited to make sure it doesn't come back but it never does.
Can anyone offer any help? I'm not sure if maybe i'm missing some dependencies the installer needs or there's just something wrong with Qt's installer?
Thanks.
I just needed to let it sit for 20 minutes.

Debugging Qt in visual studio, msvcp140d_app.dll is missing

I'm new to Qt, but have been working with Visual studio for C/C++ development for a few years. Now I'm trying to build a GUI for my project. I installed Qt 5.11.0 and the Qt VS Tools on both my work computer and home PC. At work I can build and run my project with the VS debugger, however on my home system I can build but can't run either with VS debugger or simply launching the app. I tried in release and it runs fine.
The error I'm getting is :
The code execution cannot proceed because VCRUNTIME140D_APP.dll was not found.
I get 4 of these, the first two want VCRUNTIME, the second two want MSVCP140D_APP.dll.
Solutions I've tried so far :
Uninstalled Win SDK and reinstalled
Uninstalled VS2017 and SDK and reinstalled
Searched System32, SysWOW64 and VS install directories - found msvcp140d.dll and vcruntime140d.dll, but no _app.dlls
Does anyone know what these are included with and where to get them? I can't figure out why I have them on my work computer but not at home. I have the same VS updates, same Qt version, and SDK on both systems.
Using :
Visual Studio 2017 v15.7.1
Qt 5.11.0 - msvc2017_64
I suppose I can just copy the .dll's from my work pc and drop them in the appropriate locations on the other, but I'd like to know what they should have been installed with so I can have the same setup on both systems.
Edit:
I also tried changing the platform toolset to VS2015 with Qt versions msvc2015_64 and winrt_x64_msvc2015
I found this post concerning the same missing _app.dll files. There wasn't any answer there, which is why I tried reinstalling the SDK in the hope the missing files were included there.
Edit 2:
I just scanned my entire system at work and it turns out that I don't have the missing .dll there either. That tells me that there is a difference in the project properties or configuration between the two. I use git for source control, and I am currently the only contributor to this project. When I try to build and run just the example from the getting started guide I have the same problem at home with missing _app.dll files, however it works fine at work. I'm totally confused now, and any hints are greatly appreciated.
Solution:
After trying for a couple of hours making new solutions etc. I decided to delete the entire build folder and put fresh copies of all the dependencies into it. My project now runs fine in debugging mode.
I'm fairly certain that when I originally copied the Qt .dll files into it I must have grabbed them from one of the winrt folders rather than the msvc2017_64 folder. To test I replaced the working .dll files with those from the winrt_x64_msvc2017 folder and sure enough the same errors again. So, this was a dumb mistake on my part, but hopefully it'll save someone else a lot of hair-pulling in the future.

VSCode "go to definition" not working

I installed Visual Studio Code 1.1 with the C/C++ extension,
opened my C++ project and tried to use "Go to definition" in vain.
The "Go to definition" is not working at all.
Example, go to definition of a class member:
int i = m_myVar;
(I opened a simpler project with one file and it was working for this one)
In the end, what I want is good indexation of my big project, is there a way to install Intellisense?
I had a the same issue: F12 and Ctrl + Click and Right Click "Go To Definition" wasn't working.
The fix for me was:
Go to Extensions
Click "Disable All Installed Extensions"
Close and Reopen VS Code
Back to Extensions and "Enable All Extensions"
Essentially enable/disable all extensions fixed the issue.
I recently came across this same issue and after trying all of the suggested solutions I could find with no success, I found this article:
https://code.visualstudio.com/docs/setup/linux#_visual-studio-code-is-unable-to-watch-for-file-changes-in-this-large-workspace-error-enospc
Basically my project grew too large and VS code was no longer able to track all files, which messed up the "go to definition" functionality.
After following the steps on the link to increase the maximum number of files to be tracked, the issue was resolved.
The correction is pretty simple (tested on Ubuntu 18.04):
Add this line:
fs.inotify.max_user_watches=524288
to the end of the file /etc/sysctl.conf
After saving, run the following command:
sudo sysctl -p
Hopefully this will be useful to someone else, this has been bothering me for the last few days.
I had a similar problem except with Python and google searches for solutions kept bringing me back to this post so I figured I'd post my solution here in the hopes that it might help other people.
I was working on a remote cluster through VScode Remote and was getting similar errors to the original question(all 'go to ___' functionality was unavailable and was even getting a 'too large to track' error) and I thought I had to increase the number of watches, which didn't end up helping.
All I needed to do was install a python interpreter on the remote VScode server. This fixed my problem.
I believe vscode 1.1 (well, 1.1.1 actually) + the C++ extension (cpptools) is as much Intellisense as we can get for now.
You should load your big project with the "open folder" function to make vscode know about the other files.
https://blogs.msdn.microsoft.com/vcblog/2016/03/31/cc-extension-for-visual-studio-code/ warns about letting the indexing finish first (red icon in lower right corner during indexing) and mentions the current limitations on the source code parsing.
It wasn't working on my laptop as well after installing a few VSCode extensions. I decided to close and re-open VSCode with administrator permission and suddenly it sorted out.
I have been trying to fix this for a long time. In the end, what worked for me was simply reinstalling VSCode, then installing the latest C/C++ extension (v0.18.1). Then, in your .vscode/c_cpp_properties.json file, under includePath, add your include folder which has all your header files.
I tried the methods mentioned in this thread none of them seemed to work for me. A simple solution that worked for me is that I closed the current workspace and created a new workspace, added the folders which I required(same as the old workspace), and saved the new workspace. Waited for a couple of minutes to index and IntelliSense is able to find definitions now.
I am using VSCode 1.52.1 on Ubuntu 20.04.
In my case, for whatever reason,c_cpp_properties.json has become set to Disabled in ~/.config/Code/User/settings.json.
Manually changing it to Enabled solved the problem.
Fixed mine by UNCHECKING C_Cpp > Default > Limit Symbols To Included Headers
Your mileage may vary. Good luck!
Have you saved your workspace? Or did you just open a folder with File->Open Folder? This question already has many answers, but none of them address this case, which was my issue.
The question is not specific enough for me to know if you are having the exact same symptoms as my case.
If:
You have not saved your workspace. vscode doesn't say "(workspace)" at the top of the window.
None of the goto functions are working, but instead report: "No ___ found for ____"
The tag parser database icon in the bottom right is always there but only reports "Parsing open files", rather than telling you how many files have been parsed.
Then:
Try saving your workspace.
If you have multiple versions of a language on your PC, specify the exact language you are using in the VScode(in my case, I am using Python, so I must specify the version to the python Interpreter in VS Code)
If you could not do it whatsoever, then uninstall all the other versions that you don't use and then if you go to VS Code, it will ask the version to be used, and you would have only one version, so when you select the version, the "Go To Definition" will be activated.
I was having a similar issue with java on Ubuntu 20.04 using OpenJDK version 11 (openjdk-11-jdk in apt). At first I didn't have the JRE installed, so I installed it and it still didn't work.
Afterwards, I went to the CTRL + SHIFT + P menu and then to Java: Configure Java Runtime, there I saw in the Java Tooling Runtime tab that /usr/lib/jvm/java-11-openjdk-amd64 was selected, changed it to /usr/lib/jvm/java-1.11.0-openjdk-amd64 just to see if it would work, and after a restart it did. I'm not sure why this is, but I hope it may help somone else.
For python ensure your code analysis settings are correct. In my case the languageServer was accidentally set to 'None'. Reverting it to 'default' or 'pylance' did the trick.
Just to inform if none of above works then
In my case i was using Kite extension in my VS code, I just disabled it and it worked. I think kite extension is blocking this feature.
OS: Linux Ubuntu 22.04
if you encountered with following error:
"The .NET Core SDK cannot be located. .NET Core debugging will not be enabled. Make sure the .NET Core SDK is installed and is on the path."
Normally Vscode remains unable to locate .Net sdk. need to set path manually.
sudo ln -s /snap/dotnet-sdk/current/dotnet /usr/local/bin/dotnet
restart omnisharp & restart vscode
No need to do anything. Just close and re-open. It will work.
I also faced similar problem. In my mac os cmnd + 'click' is used to 'go to definition' then it suddenly stoped working. If that is the case then please follow these steps:
restart vs code
restart pc
uninstall all extensions and reinstall again followed by a pc restart.
I had a similar issue with the extension C/C++ installed. I solved it by downloading an older version of the extension and upgrading to the last version. Somehow it solved the problem...

How to configure Qt debugger and what is needed for it to work

Ok so Im really confused here, I got the same erroe as Martin.kv who started this thread How to configure CDB in Qt Creator?
which said "The preferred debugger engine for debugging binaries of type 'x86-windows-msvc2010-pe-32bit' is not available....Details: There is no CDB binary available for binaries in format 'x86-windows-msvc2010-pe-32bit"
I assume I have to download some stuff to fix this, so I went here http://msdn.microsoft.com/en-us/windows/hardware/gg463009.aspx and I have Windows 7 on a 32-bit system so I went under this title "Install the Windows 7 Version of Debugging Tools for Windows" and went here http://www.microsoft.com/en-us/download/details.aspx?displaylang=en&id=8279 to download the Debugging tools for windows.
From all the stuff I've read, on the thread I referenced and a few others, what I downloaded seemed to be the right thing.
I admit I screwed up a little because I forgot to check where it was putting the Debugger Tools because while it started downloading I was still searching for what to do after the download. But I'm pretty sure it is in "C:\Program Files\Microsoft Windows Performance Toolkit" but I dont have anything called Windows Kits, which everyone else is saying theirs is in, and I still dont seem to have a cdb.exe..
did I download the wrong thing? What do I need to do/download instead? and also where can I get the Symbol Server that the Qt site and many other people suggest??
Sorry I'm new to Qt and some what to programming in general and my program for my internship is due at the end of the day and last night it stopped working so I'm kind of freaking out a little but I figure the debugger could help because it doesnt really make sense why it stopped working.
There should be a place in the Qt Creator settings where you can point it to the cdb.exe that comes with the Debugging tools for Windows.
See here: http://doc.qt.nokia.com/qtcreator-2.5/creator-debugger-engines.html
I got cdb working with QtCreator only after the following steps:
1) Download & install Debugging Tools for Windows
2) QtCreator->Tools->Options->Build & Run->Tool Chains
3) Copy autodetected MS compiler to the "manual" section
4) Set the path to cdb.exe
5) Use the "manual" MS compiler.
Perhaps there's some way to avoid steps 3-5 (playing around with environment variables maybe) but the described scheme works fine so I don't mind.

Windows 7 and the case of the missing regtlib

I've just discovered that regtlib.exe appears to be missing from Windows 7 (and apparently from Vista as well).
I've just installed Windows 7 RC in a VM and I'm attempting to build our existing projects on the new OS. The projects are c/c++ based and I'm using visual studio 2008. In order to build these projects I need to register several tlb files that are referenced within the code base.
Has anyone also encountered this problem? And, has anyone managed to solve this?
Thanks.
Yeah regtlib was removed from vista and up. As far as I know, all it does is call LoadTypeLibEx with the REGKIND_REGISTER flag (http://msdn.microsoft.com/en-us/library/ms221249.aspx). Maybe you could write a simple replacement.
Just came across this issue (couldn't add any components to a VB6 project on Win7). This post (Error accessing the system registry in VB 6 IDE) pointed to regtlib (which is missing from Win7). I just
set the VB6 start menu icon to 'Run As Administrator' and it worked fine for adding components and should fix any problems relating to updating the registry as well.
Regards
Ian
Finally got back to trying to build our code base on windows 7. Anyway, I went back to the installer for one of the dependencies that was causing me grief. The error message from the installer wasn't to helpful but it did point to a regasm that was being run from inside the installer.
I ran the regasm command from a cmd prompt and got more information. It appears that you need administrative credentials to perform this task and our current installers don't do the privilege escalation properly.
So, long story short, I got dlls registered and the build appears to be working.