Questions tagged [debugger]

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Is there a trick to get the Firefox's Devtools (developer tools) debugger to pause JavaScript using the keyboard?

When the Firefox Devtools (developer tools) Debugger pane is open, you are supposed to be able to press the F8 keyboard key to pause JavaScript. I find that this rarely works on complicated websites (...
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PyCharm (2021.1.3) debug mode opens new tab of same source file

Whenever I am debugging my code and hit a breakpoint, PyCharm jumps into a new tab opening the same file in which I've set the breakpoint. The second tab is then closed immediately, jumping back to ...
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How to analyse a compiled running program for performance characteristics?

I have a process I run regularly on a machine and am starting to spec a dedicated machine for the purpose. If it is possible to choose a processor or memory that are optimised for this, how would I go ...
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Can I download and safely install and use a debugger on my host computer?

I was today checking for some information about x64dbg debugger software. And saw this disclaimer in a blog post: What exactly do they mean by setting up a secure and virtualized environment? And ...
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How do I attach windbg kernel debugger to the local machine?

I have used bcdedit.exe -debug on and rebooted. However I still get the error: --------------------------- WinDbg:10.0.19041.685 X86 --------------------------- The system does not support local ...
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How to dump a hung process that is already being debugged

When debugging my program, the program intermittently hangs, together with the debugger (Windows, Visual Studio, .NET). When this happens, it seems impossible to get a dump of the process in any way (...
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How can I call OutputDebugString from a windows batch file

The context: I have a batch file that runs periodically as a scheduled task. While I can debug this with echo statements by invoking it directly from a Cmd.exe command prompt window, If I could call ...
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4 answers
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Access denied removing `__debug_bin` in Visual Studio Code

After debugging a go program, the __debug_bin file is leftover and is not getting removed, throwing an access denied error. I tried running VSCode with admin privileges but it's the same. I would like ...
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Getting This site can't be reached after doing Manual Proxy settings in wifi on Andoid/IOS device

I am trying to do proxy configuration in Redmi Note 7 Android 9. I have connected my Macbook and Device to the same wifi network, after doing manual configuration for Proxy IP address:192.168.XX.XX, ...
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635 views

Search / Find / Replace in Firefox Developer Tools Debugger

I've looked all over but I can't find anything (not even in the MDN Firefox Developer Tools Help Pages) which explains how, when I'm looking at the Debugger in Firefox Developer Tools I can request to ...
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2 votes
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Why does Windows allow you to read and write another process memory?

I found that many debuggers (like x64dbg) or hex viewers (HxD) allow you to access and modify memory of another process. It works without any asking for permission. I even wrote a simple program that ...
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replace notepad with notepad++ --> The Process does not own any identity

A time ago, I set notepad++ as a debugger for notepad, in order to automatically open it instead of the default editor. See this for example. I did this by just Computer\HKEY_LOCAL_MACHINE\SOFTWARE\...
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Ruby Mine debugger doesnt start of error SIGABRT

I am facing an error when trying to execute a rails app in debug mode. I have an error which is saying: Process finished with exit code 134 (interrupted by signal 6: SIGABRT) I've seen that I don't ...
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2 answers
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Step Back to previous line in visual studio code

Is there any way to step back to previous line in Visual Studio Code while debugging c# , just like drag to previous code or any line in visual studio 17 or 19 in windows?
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How VS2019 Linux C++ debugger indexes files?

How VS2019 Linux C++ debugger indexes files? Does Visual Studio 2019 Linux ssh c++ debugger index files for IntelliSense use on Linux server where gdb is or it establishes a SSH connection for each ...
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6 votes
1 answer
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Pycharm debugger does not work with pytorch and deep learning

This question is somewhere in between Stackoverflow and Superuser - in my opinion at least, so feel free to point me to SO if this is the wrong place (in your opinion ;)). Problem: If I place a ...
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8 votes
1 answer
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How do I modify a variable at a breakpoint in Firefox Developer Edition?

I would like to be able to edit a variable after setting (and hitting) a breakpoint, in either Firefox or Firefox Developer Edition. It seems that it used to have this feature, but it was removed ...
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Spacebar doesnt work in python shell or pdb

Was hoping someone here may have experienced this too. I often use ipython for a local python shell and everything works fine. But sometime I like to use pdb and the default python shell. I'm using ...
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2 votes
0 answers
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GDB suspended every time after run program

I try to debug my program using gdb, but gdb suspended every time after run program. $ > gdb -q ./main Reading symbols from ./main... (gdb) disas main Dump of assembler code for function main: ...
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1 vote
1 answer
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Debugger doesn't work on VSC ("The preLaunchTask ... terminated with exit code 127")

I'm creating an app with ionic 4 and SQLite on VSC. I can't access to my db. When I use the debugger, I have the following errors : I have a first "alert window" (I don't know what's the real name) ...
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Why does a VirtualBox error completely locks my ubuntu desktop?

I'm using VirtualBox (Version 5.1.38_Ubuntu r122592) under lubuntu (Linux hostname 4.4.0-148-generic #174-Ubuntu SMP Tue May 7 12:20:14 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux) to start turbo debug ...
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1 vote
2 answers
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Nodejs inspect port 127.0.0.1:9229 timing out

Node.js Version: 12.2.0 OS: Windows 10 Using: VSC I'm trying to use the debugger through chrome and it keeps giving me this error $ node inspect app.js Timeout (2000) waiting for 127.0.0.1:9229 to ...
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1 vote
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Clion C Debug error - pretty printer

If I try to debug my C project, the debugger won't start and displays an error: Error during pretty printers setup: Undefined command: "pretty-printer" Do you have any idea how to fix it?
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VS2017 C++ debugger skipping lines of code

I did a quick search and found nothing similar to this question. Maybe I don't know how to search for this one, sorry. I recently moved to VS2017 (community version) from VS2015. I'm involved in a ...
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2 votes
2 answers
4k views

How can I start Live server and Chrome debugger for VS Code in one click

For web projects not using npm or task runners, can you you some how get the debugger for Chrome extension to start a server before it starts debugging? I'm using the Live server debugging extension ...
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Chrome DevTools target discovery does not work anymore with node

I have a problem with chrome devTools who does not auto-discover target with any node process anymore. For example, the following command node --inspect=127.0.0.1:9400 index.js return Debugger ...
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14 votes
6 answers
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My PyCharm run is working but debugging is failing

I am using JetBrains Pycharm IDE in ubuntu 18.04 when I am hitting run, it is working fine but debugging is failing every time with the following error. error screenshot and this is prompt from ...
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1 vote
1 answer
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Show context after every move using Python pdb

Can I show the context any time I step through code using Python's pdb debugger without having to explicitly call the list command? I've tried chaining commands with something like n & l or n &...
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12 votes
1 answer
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Is there a way to directly open Chrome's “dedicated devtools for node”?

I use FireFox for my daily browsing; so the process of getting a Node inspector running is somewhat annoying: Launch Chrome Manually visit chrome://inspect, because it refuses to set a builtin page ...
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2 votes
1 answer
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Debugger.Launch() on Visual Studio 2017

I have Visual Studio Professional 2017 Version 15.8.2, I'm trying to use Debugger.Launch() but I can't see VS2017 on the list of possible debuggers in the Visual Studio Just-In-Time Debugger window. ...
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Effect of enabled kernel debug mode on Windows Server

I have a problem which shows up sporadically on Windows Server (Cannot bind TCP Port but netstat does not show any usage). I think I would be able to look at the kernel structures. For this I would ...
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how to edit procmon.exe's driver filename without breaking procmon.exe file

I have a program that detects that I am running procmon.exe and after searching a lot I found this solution: The Device Name of PM is 'PROCMON10' You can see it if you run the Device Manager ...
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Debugging failed file handles in Windows Console application

I have a console application that uses puTTY as a DLL and I need to debug the puTTY library in question. On UNIX, I would do strace <command>. strace ls ggg Would print something like: stat("...
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2 answers
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Visual Studio 2015 F5 doesn't attach to the proces

This is what I'm doing: Set C++ project as startup project Build Set many break points press F5 the correct project is started, the breakpoints are shown as valid and loaded (filled red circle), ...
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Sometimes invoking a script that has `#!/usr/bin/env bash` opens bashdb instead

I’ve seen this infrequently and unpredictably for years. Today it happened on a Mac, trying to run my script that checks for MacPorts updates that should have run as a cronjob but seemed to have been ...
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1 vote
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Prevent VS 2017's debugger from opening every Typescript file used

On a fresh installation of Visual Studio 2017, I am running into a minor annoyance while debugging an aspnet project in chrome. When the debug app starts up, It opens every typescript file (that is ...
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2 votes
1 answer
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How to get back the old debugger in Firefox

Firefox 52 introduces a new JavaScript Debugger with new UI but lack of many features that the old one has. One that I found critical and can't work without is the ability to search for some text in ...
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How do you force a process to become the parent process of another application?

I am using cygwin and writing a debugger, and I found this question worthy of superuser. I am trying to make my program insert itself above another on the process tree, without ptrace, as it is not ...
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2 votes
1 answer
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DbgView gives error: The file dbgview.sys is already in use

I am trying to debug some driver code using Dbgview, first time when I open it it runs fine. But when I close it and restart the Dbgview it just gives above error and I can't use the kernel debugger ...
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12 votes
1 answer
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Google Search hijacked only when not being observed. Attaching a debugger returns normal results

I cannot figure this one out. I noticed my search results were a little "different" as of late. I'm not signed in when I do a google search, but if I click "Images" or "Videos" I am shown as ...
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1 vote
2 answers
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Ubuntu gnome package installation error

When trying to install insight from some ppa repositories i get these errors. sudo apt-get install insight Reading package lists... Done Building dependency tree Reading state information... ...
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1 vote
1 answer
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Python debugger not stopping at breakpoints

I'm in a linux based development environment where I don't have superuser permissions. My basic issue is that the breakpoints I set in emacs through pdb never work. The debugger never halts at those ...
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1 vote
1 answer
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How do I see all the errors in a JS file in one place?

Other than manually looking for the wavy underlines to see all possible errors in a file, is there a way to see all the possible Syntax, Spelling and Scope errors in one place? For example: those ...
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1 vote
0 answers
123 views

Chrome Debugger skip wrapper functions, until they call the real function

I am debugging in Chrome, there are some functions that are just wrappers, and I want to quickly skip them, something like this: function breakpointHere() { step1(); callWrappedFunc(); } ...
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2 votes
2 answers
2k views

Is it possible to give the full path to an executable in "Image Execution Options\*\Debugger"?

Image Execution Options (HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options) with a key named after the executable and a string (REG_SZ) value is known to be ...
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1 vote
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Debugging not-loading Windows XP x64

The question is related to this one: Windows XP x64 hangs at welcome screen. So I want to debug WinLogon.exe through Windows Kernel-Debugger remotely using an 1394 (Fire Wire) port on the system asked ...
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  • 359
0 votes
2 answers
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Firefox Developer Tools - Can't Show Nodes In Inspector

I'm trying to move from Chrome Dev Tools to Firefox (27.0.1) for day-to-day debugging, however I keep hitting a problem in the inspector that can only be fixed by restarting Firefox. The first time I ...
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1 vote
1 answer
2k views

Debug info package for centos

Hi I am getting the following on each line of gdb instruction steps. Does anyone know what package I need to install to remove this message from a CentOS build? Missing separate debuginfos, use: ...
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2 votes
3 answers
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Disable the JIT debugger

On a Windows XP, 64 bit machine, which serves as a build agent for TeamCity, we have Visual Studio 2005, 2008 & 2010 installed. All three installations have all their Just-In-Time debugger options ...
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5 votes
3 answers
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Is there debug.exe equivalent for Windows7?

Is there a debug.exe equivalent for Windows7 where I can write machine code and see what results they have after execution?
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