# Error: \[pid:20200, code:3221225477, signal:null\] **URL:** \ **Category:** mediasoup libraries\ **Created:** [June 27, 2024, 6:05am UTC](https://mediasoup.discourse.group/t/error-pid-20200-code-3221225477-signal-null/6111 "2024-06-27T06:05:17Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![ogabek](https://avatars.discourse-cdn.com/v4/letter/o/b3f665/32.png) [@ogabek](https://mediasoup.discourse.group/u/ogabek)\ **Post date:** [June 27, 2024, 6:05am UTC](https://mediasoup.discourse.group/t/error-pid-20200-code-3221225477-signal-null/6111/1 "2024-06-27T06:05:17Z")
Hey guys, I have some problems with mediasoup. I tried to run project on my local machine while I am creating mediasoup worker it returns me like this error: ```auto Error: [pid:20200, code:3221225477, signal:null] at ChildProcess. (C:\Users\vonor\OneDrive\mediasoup-sfu-webrtc-video-rooms\node_modules\mediasoup\node\lib\Worker.js:146:43) at ChildProcess.emit (node:events:518:28) at ChildProcess._handle.onexit (node:internal/child_process:294:12) ``` I also tried to run another pc but same error. i don’t know how to fix this error. if you know how to fix this issue please help me. OS: Windows 11 NODE: v18 Package Manager: YARN@v1.22.22 DEBUG=“mediasoup\* _ERROR_” node server.js ```auto mediasoup createWorker() +0ms mediasoup:Worker constructor() +0ms mediasoup:Worker spawning worker process: C:\Users\vonor\OneDrive\test\node_modules\mediasoup\worker\out\Release\mediasoup-worker --logLevel=debug --rt cMinPort=10000 --rtcMaxPort=59999 +0ms mediasoup:Channel constructor() +0ms mediasoup:Channel Producer Channel ended by the worker process +19ms mediasoup:Channel Consumer Channel ended by the worker process +0ms mediasoup:ERROR:Worker worker process failed unexpectedly [pid:15684, code:3221225477, signal:null] +0ms mediasoup:Worker close() +26ms mediasoup:Channel close() +1ms ``` Thanks beforehand 🙂 ---
**Author:** ![dikyardiyanto17](https://avatars.discourse-cdn.com/v4/letter/d/df788c/32.png) [@dikyardiyanto17](https://mediasoup.discourse.group/u/dikyardiyanto17)\ **Post date:** [June 27, 2024, 8:43am UTC](https://mediasoup.discourse.group/t/error-pid-20200-code-3221225477-signal-null/6111/2 "2024-06-27T08:43:21Z")
Me too. I got this error while upgrading Mediasoup from 3.6 to 3.14. It runs well on Ubuntu, but I get this error when developing on Windows. ---
**Author:** ![Sam15b](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/sam15b/32/2688_2.png) [@Sam15b](https://mediasoup.discourse.group/u/Sam15b)\ **Post date:** [September 7, 2024, 6:45am UTC](https://mediasoup.discourse.group/t/error-pid-20200-code-3221225477-signal-null/6111/3 "2024-09-07T06:45:17Z")
I am encountering the same problem and suspect it might be related to the Mediasoup configuration in my project. I deleted the `node_modules` folder and `package-lock.json`, then ran `npm install` and `npm rebuild mediasoup` to reconfigure the setup. Despite these efforts, the error persists. ---
**Author:** ![jpehman](https://avatars.discourse-cdn.com/v4/letter/j/6f9a4e/32.png) [@jpehman](https://mediasoup.discourse.group/u/jpehman)\ **Post date:** [January 17, 2025, 3:06pm UTC](https://mediasoup.discourse.group/t/error-pid-20200-code-3221225477-signal-null/6111/4 "2025-01-17T15:06:15Z")
I am getting the same error on Windows Server 2022. Running the same code on Windows Server 2019 and Windows 10 does not produce this error. Isn’t there anyone else in the community that’s run into this and found a solution? It’s been reported on Github twice, but because the reporting individual did not provide useful information the bug was closed. How do I go about debugging this in a Windows server environment? Will WinDbg produce useful information? ---
**Author:** ![ibc](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/ibc/32/1540_2.png) [@ibc](https://mediasoup.discourse.group/u/ibc)\ **Post date:** [January 17, 2025, 3:14pm UTC](https://mediasoup.discourse.group/t/error-pid-20200-code-3221225477-signal-null/6111/5 "2025-01-17T15:14:57Z")
I don’t know about windows but we would accept a PR that adds a more modern version of Windows OS in mediasoup CI actions. That would probably help to see the problem. ---
**Author:** ![jpehman](https://avatars.discourse-cdn.com/v4/letter/j/6f9a4e/32.png) [@jpehman](https://mediasoup.discourse.group/u/jpehman)\ **Post date:** [January 17, 2025, 4:16pm UTC](https://mediasoup.discourse.group/t/error-pid-20200-code-3221225477-signal-null/6111/6 "2025-01-17T16:16:01Z")
Well… for anyone following this, installing node to the server in question fixed the issue. I don’t know what was included by node that mediasoup-worker.exe needed, though. Before I dig into all the files, do you know of anything specific that node might be including? ---
**Author:** ![jpehman](https://avatars.discourse-cdn.com/v4/letter/j/6f9a4e/32.png) [@jpehman](https://mediasoup.discourse.group/u/jpehman)\ **Post date:** [January 17, 2025, 5:16pm UTC](https://mediasoup.discourse.group/t/error-pid-20200-code-3221225477-signal-null/6111/7 "2025-01-17T17:16:19Z")
I uninstalled node and what I thought was all the dependencies (like Python, and VS 2019 C++ Build Tools) that came with node and restarted the server. However, mediasoup-worker continues to start happily. Which means I still don’t know what the dependency is that mediasoup-worker needed to not have an access violation. ---
**Author:** ![jpehman](https://avatars.discourse-cdn.com/v4/letter/j/6f9a4e/32.png) [@jpehman](https://mediasoup.discourse.group/u/jpehman)\ **Post date:** [January 17, 2025, 9:03pm UTC](https://mediasoup.discourse.group/t/error-pid-20200-code-3221225477-signal-null/6111/8 "2025-01-17T21:03:33Z")
Final update from me on this. Microsoft Visual C++ 2015-2022 Redistributable (x64) ended up being the required module for the server to run. More specifically, the following DLLs are unavailable without the Redistributable: MSVCP140.dll VCRUNTIME140.dll VCRUNTIME140\_1.dll ---
**Author:** ![yashrajsinh\_chauhan](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/yashrajsinh_chauhan/32/2768_2.png) [@yashrajsinh\_chauhan](https://mediasoup.discourse.group/u/yashrajsinh_chauhan)\ **Post date:** [January 20, 2025, 10:13am UTC](https://mediasoup.discourse.group/t/error-pid-20200-code-3221225477-signal-null/6111/9 "2025-01-20T10:13:15Z")
i had same issue what i have done is reinstall the drivers ![image](https://global.discourse-cdn.com/free1/uploads/mediasoup/original/2X/5/5fdf9b3003e6140edc0c55ef3bd2e44843607023.png) if they are already in your system u can check from controller panel → programs/features → if it is not here u can install and restart. boom and error gone also check MSVCP140.dll VCRUNTIME140.dll VCRUNTIME140\_1.dll as it is available or not in c/system32 directly search in upper right side by name both are present 99% are this error is gone nad no more ---
**Author:** ![sanchit\_mugshot](https://avatars.discourse-cdn.com/v4/letter/s/439d5e/32.png) [@sanchit\_mugshot](https://mediasoup.discourse.group/u/sanchit_mugshot)\ **Post date:** [January 24, 2025, 7:28am UTC](https://mediasoup.discourse.group/t/error-pid-20200-code-3221225477-signal-null/6111/10 "2025-01-24T07:28:08Z")
I am having the same issue , I have tried installing Microsoft Visual C++ 2015-2022 Redistributable (x64) and that still doesn’t seem to resolve the issue for me. ---
**Author:** ![yashrajsinh\_chauhan](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/yashrajsinh_chauhan/32/2768_2.png) [@yashrajsinh\_chauhan](https://mediasoup.discourse.group/u/yashrajsinh_chauhan)\ **Post date:** [January 28, 2025, 4:46pm UTC](https://mediasoup.discourse.group/t/error-pid-20200-code-3221225477-signal-null/6111/11 "2025-01-28T16:46:31Z")
U need to install this 3 as I mentioned in image than restart pc laptop ---
**Author:** ![sigmama](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/sigmama/32/2864_2.png) [@sigmama](https://mediasoup.discourse.group/u/sigmama)\ **Post date:** [August 28, 2025, 9:01am UTC](https://mediasoup.discourse.group/t/error-pid-20200-code-3221225477-signal-null/6111/12 "2025-08-28T09:01:41Z")
Encounter the same, and install/reinstall the **Latest Microsoft Visual C++ Redistributable version** fixed my issue. And an old version of the package may not work….