# Open webcam server crash

**URL:** <https://mediasoup.discourse.group/t/open-webcam-server-crash/1682>\
**Category:** mediasoup-demo\
**Created:** [September 1, 2020, 8:14am UTC](https://mediasoup.discourse.group/t/open-webcam-server-crash/1682 "2020-09-01T08:14:31Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![dragon-ym](https://avatars.discourse-cdn.com/v4/letter/d/5daacb/32.png) [@dragon-ym](https://mediasoup.discourse.group/u/dragon-ym)\
**Post date:** [September 1, 2020, 8:14am UTC](https://mediasoup.discourse.group/t/open-webcam-server-crash/1682/1 "2020-09-01T08:14:31Z")

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On Ubuntu 14.01 run mediasoup-demo server success. but when join the room and open webcam，Error enabling webcam:Error:500

At the same time. server crash.

 ![1598947689(1)](https://global.discourse-cdn.com/free1/uploads/mediasoup/original/1X/9cc486e7e7804a1575a7e6d478fad057077c8893.png)

If only open auido, its ok！but open webcam , server crash and websocket disconnected！！

What’s the problem

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**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:** [September 1, 2020, 8:27am UTC](https://mediasoup.discourse.group/t/open-webcam-server-crash/1682/2 "2020-09-01T08:27:13Z")

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You don’t even tell gcc or clang versions used to compile mediasoup. From the log it’s clear that it’s due to a non supported gcc version. Check mediasoup Installation requirements in the website and paste your versions here.

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**Author:** ![dragon-ym](https://avatars.discourse-cdn.com/v4/letter/d/5daacb/32.png) [@dragon-ym](https://mediasoup.discourse.group/u/dragon-ym)\
**Post date:** [September 1, 2020, 8:39am UTC](https://mediasoup.discourse.group/t/open-webcam-server-crash/1682/3 "2020-09-01T08:39:33Z")

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> [@ibc](#):
>
> u don’t even tell gcc o

Thank you for your reply！！

when compile mediasoup，its no problem.  
my versions.

 ![1598949392(1)](https://global.discourse-cdn.com/free1/uploads/mediasoup/original/1X/ae0dadb967e362b723fad3ea91d4c1eab8d84eab.png)

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**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:** [September 1, 2020, 8:42am UTC](https://mediasoup.discourse.group/t/open-webcam-server-crash/1682/4 "2020-09-01T08:42:27Z")

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Not enough. I dind’t say that just because mediasoup compiles it’s ok.

Enter `mediasoup-demo/server/node_modules/mediasoup/worker/`, run `make` and paste the first 20 lines of the output.

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**Author:** ![dragon-ym](https://avatars.discourse-cdn.com/v4/letter/d/5daacb/32.png) [@dragon-ym](https://mediasoup.discourse.group/u/dragon-ym)\
**Post date:** [September 1, 2020, 8:52am UTC](https://mediasoup.discourse.group/t/open-webcam-server-crash/1682/6 "2020-09-01T08:52:21Z")

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Ubuntu 14.01 for gcc 4.8，compile fail. then upgrade gcc 5.0 ,compile pass.  
run make

 ![1598950105(1)](https://global.discourse-cdn.com/free1/uploads/mediasoup/original/1X/b131254cc1cd5a9125966bbef696d74f7f762d4a.png)

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**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:** [September 1, 2020, 9:15am UTC](https://mediasoup.discourse.group/t/open-webcam-server-crash/1682/7 "2020-09-01T09:15:27Z")

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Honestly I don’t know. The issue about “invalid regex” is a well known issue when using gcc \< 4.9. In your last screenshoot (why don’t you just paste text?) it looks like you are “selecting” gcc 5.0 but I don’t know what your system is then doing or which libs it take later when you run mediasoup.

Here a related issue that was fixed by requiring gcc \>= 4.9: [https://github.com/versatica/mediasoup/issues/292](https://github.com/versatica/mediasoup/issues/292)

No idea what to do in your case. Try uninstalling gcc and g++ \< 5.

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<div class="post-metadata">

**Author:** ![dragon-ym](https://avatars.discourse-cdn.com/v4/letter/d/5daacb/32.png) [@dragon-ym](https://mediasoup.discourse.group/u/dragon-ym)\
**Post date:** [September 1, 2020, 9:17am UTC](https://mediasoup.discourse.group/t/open-webcam-server-crash/1682/8 "2020-09-01T09:17:38Z")

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thinks, i will try g++ 4.9

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**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:** [September 1, 2020, 9:26am UTC](https://mediasoup.discourse.group/t/open-webcam-server-crash/1682/9 "2020-09-01T09:26:25Z")

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I didn’t say “try gcc 4.9”. Any version \> 4.8 should be fine. I just said “uninstall gcc 4.8 and g++ 4.8 from your system completely and recompile mediasoup”.

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**Author:** ![dragon-ym](https://avatars.discourse-cdn.com/v4/letter/d/5daacb/32.png) [@dragon-ym](https://mediasoup.discourse.group/u/dragon-ym)\
**Post date:** [September 1, 2020, 9:27am UTC](https://mediasoup.discourse.group/t/open-webcam-server-crash/1682/10 "2020-09-01T09:27:32Z")

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ok, I will try