Error in scanner

General
,
1

Hi. Since a few weeks I keep getting errors in the scanner.
Because of these errors I am unable to start the scanner and CasparCG.
To make sure it’s not a configuration error or something else I downloaded the latest 2.3.1 LTS from Github but this gives me the same errors.
I am running Windows 10 (version 2004).
The error in the scanner:

[2021-02-06T09:45:53.939Z] ERROR (scanner/15556 on DESKTOP-L0GD81G):
    req: {
      "id": 3,
      "method": "GET",
      "url": "/thumbnail",
      "headers": {
        "host": "localhost:8000",
        "accept": "*/*",
        "connection": "close"
      },
      "remoteAddress": "::1",
      "remotePort": 58338
    }
    err: {
      "type": "Error",
      "message": "socket hang up",
      "stack": "Error: socket hang up\n    at createHangUpError (_http_client.js:331:15)\n    at Socket.socketOnEnd (_http_client.js:423:23)\n    at emitNone (events.js:111:20)\n    at Socket.emit (events.js:208:7)\n    at endReadableNT (_stream_readable.js:1056:12)\n    at _combinedTickCallback (internal/process/next_tick.js:138:11)\n    at process._tickCallback (internal/process/next_tick.js:180:9)",
      "code": "ECONNRESET",
      "status": 500
    }

On boot the scanner also shows a deprecation warning

[2021-02-06T09:45:43.253Z] INFO (scanner/15556 on DESKTOP-L0GD81G): Checking for dead media
(node:15556) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 3): Error: socket hang up
(node:15556) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

Because of the errors in the scanner CasparCG shows the following errors:

[2021-02-06 10:45:52.055] [info]    ############################################################################
[2021-02-06 10:45:52.056] [info]    CasparCG Server is distributed by the Swedish Broadcasting Corporation (SVT)
[2021-02-06 10:45:52.056] [info]    under the GNU General Public License GPLv3 or higher.
[2021-02-06 10:45:52.056] [info]    Please see LICENSE.TXT for details.
[2021-02-06 10:45:52.056] [info]    http://www.casparcg.com/
[2021-02-06 10:45:52.056] [info]    ############################################################################
[2021-02-06 10:45:52.056] [info]    Starting CasparCG Video and Graphics Playout Server 2.3.1 e767c1dda Release
[2021-02-06 10:45:52.660] [info]    Initializing OpenGL Device.
[2021-02-06 10:45:52.663] [info]    Initialized OpenGL 4.5.0 NVIDIA 452.41 NVIDIA Corporation
[2021-02-06 10:45:52.666] [info]    Initialized ffmpeg module.
[2021-02-06 10:45:52.666] [info]    Initialized oal module.
[2021-02-06 10:45:52.666] [info]    Initialized decklink module.
[2021-02-06 10:45:52.666] [info]    Initialized screen module.
[2021-02-06 10:45:52.666] [info]    Initialized newtek module.
[2021-02-06 10:45:52.717] [info]    Initialized html module.
[2021-02-06 10:45:52.717] [info]    Flash support is disabled
[2021-02-06 10:45:52.717] [info]    Initialized flash module.
[2021-02-06 10:45:52.718] [info]    Initialized bluefish module.
[2021-02-06 10:45:52.718] [info]    Initialized image module.
[2021-02-06 10:45:52.719] [info]    "C:/casparcg\casparcg-server-v2.3.1-lts-stable\casparcg.config":
[2021-02-06 10:45:52.719] [info]    -----------------------------------------
[2021-02-06 10:45:52.719] [info]    <?xml version="1.0" encoding="utf-8"?>
[2021-02-06 10:45:52.719] [info]    <configuration>
[2021-02-06 10:45:52.719] [info]       <paths>
[2021-02-06 10:45:52.719] [info]          <media-path>media/</media-path>
[2021-02-06 10:45:52.719] [info]          <log-path>log/</log-path>
[2021-02-06 10:45:52.719] [info]          <data-path>data/</data-path>
[2021-02-06 10:45:52.719] [info]          <template-path>template/</template-path>
[2021-02-06 10:45:52.719] [info]       </paths>
[2021-02-06 10:45:52.719] [info]       <lock-clear-phrase>secret</lock-clear-phrase>
[2021-02-06 10:45:52.719] [info]       <channels>
[2021-02-06 10:45:52.719] [info]          <channel>
[2021-02-06 10:45:52.719] [info]             <video-mode>720p5000</video-mode>
[2021-02-06 10:45:52.719] [info]             <consumers>
[2021-02-06 10:45:52.719] [info]                <screen/>
[2021-02-06 10:45:52.719] [info]                <system-audio/>
[2021-02-06 10:45:52.719] [info]             </consumers>
[2021-02-06 10:45:52.719] [info]          </channel>
[2021-02-06 10:45:52.719] [info]       </channels>
[2021-02-06 10:45:52.719] [info]       <controllers>
[2021-02-06 10:45:52.719] [info]          <tcp>
[2021-02-06 10:45:52.719] [info]             <port>5250</port>
[2021-02-06 10:45:52.719] [info]             <protocol>AMCP</protocol>
[2021-02-06 10:45:52.719] [info]          </tcp>
[2021-02-06 10:45:52.719] [info]       </controllers>
[2021-02-06 10:45:52.719] [info]       <amcp>
[2021-02-06 10:45:52.719] [info]          <media-server>
[2021-02-06 10:45:52.719] [info]             <host>localhost</host>
[2021-02-06 10:45:52.719] [info]             <port>8000</port>
[2021-02-06 10:45:52.719] [info]          </media-server>
[2021-02-06 10:45:52.719] [info]       </amcp>
[2021-02-06 10:45:52.719] [info]    </configuration>
[2021-02-06 10:45:52.719] [info]    -----------------------------------------
[2021-02-06 10:45:52.725] [info]    Initialized OpenGL Accelerated GPU Image Mixer for channel 1
[2021-02-06 10:45:52.726] [info]    video_channel[1|720p5000] Successfully Initialized.
[2021-02-06 10:45:52.727] [info]    Screen consumer [1|720p5000] Initialized.
[2021-02-06 10:45:53.230] [info]    oal[1|720p5000] Initialized.
[2021-02-06 10:45:53.230] [info]    Initialized channels.
[2021-02-06 10:45:53.232] [info]    Initialized controllers.
[2021-02-06 10:45:53.232] [info]    Initialized osc.
[2021-02-06 10:45:53.622] [info]    async_event_server[:5250] Accepted connection from 127.0.0.1 (1 connections).
[2021-02-06 10:45:53.622] [info]    Received message from 127.0.0.1: VERSION SERVER\r\n
[2021-02-06 10:45:53.622] [info]    Sent message to 127.0.0.1:201 VERSION OK\r\n2.3.1 e767c1dda Release\r\n
[2021-02-06 10:45:53.623] [info]    Received message from 127.0.0.1: INFO\r\n
[2021-02-06 10:45:53.623] [info]    Sent message to 127.0.0.1:200 INFO OK\r\n1 720p5000 PLAYING\r\n\r\n
[2021-02-06 10:45:53.624] [info]    Received message from 127.0.0.1: CLS\r\n
[2021-02-06 10:45:53.624] [info]    Received message from 127.0.0.1: TLS\r\n
[2021-02-06 10:45:53.625] [info]    Received message from 127.0.0.1: DATA LIST\r\n
[2021-02-06 10:45:53.626] [info]    Received message from 127.0.0.1: THUMBNAIL LIST\r\n
[2021-02-06 10:45:53.659] [error]   Exception: C:\Code\casparcg\official-master\src\protocol\util\http_request.cpp(72): Throw in function struct caspar::http::HTTPResponse __cdecl caspar::http::request(const class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > &,const class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > &,const class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > &)
[2021-02-06 10:45:53.659] [error]   Dynamic exception type: class boost::exception_detail::clone_impl<struct caspar::io_error>
[2021-02-06 10:45:53.659] [error]   [struct caspar::tag_msg_info * __ptr64] = Invalid Response
[2021-02-06 10:45:53.659] [error]   [struct caspar::tag_stacktrace_info * __ptr64] =  0# 0x00007FF68C63524E in casparcg
[2021-02-06 10:45:53.659] [error]    1# 0x00007FF68C6557C0 in casparcg
[2021-02-06 10:45:53.659] [error]    2# 0x00007FF68C749D81 in casparcg
[2021-02-06 10:45:53.659] [error]    3# 0x00007FF68C72121D in casparcg
[2021-02-06 10:45:53.659] [error]    4# 0x00007FF68C719442 in casparcg
[2021-02-06 10:45:53.659] [error]    5# 0x00007FF68C71495C in casparcg
[2021-02-06 10:45:53.659] [error]    6# 0x00007FF68C744FAD in casparcg
[2021-02-06 10:45:53.659] [error]    7# 0x00007FF68C74446F in casparcg
[2021-02-06 10:45:53.659] [error]    8# 0x00007FF68C6642A8 in casparcg
[2021-02-06 10:45:53.659] [error]    9# 0x00007FF68C6C122E in casparcg
[2021-02-06 10:45:53.659] [error]   10# 0x00007FF68C6BF2D0 in casparcg
[2021-02-06 10:45:53.659] [error]   11# 0x00007FF68C631489 in casparcg
[2021-02-06 10:45:53.659] [error]   12# configthreadlocale in ucrtbase
[2021-02-06 10:45:53.659] [error]   13# BaseThreadInitThunk in KERNEL32
[2021-02-06 10:45:53.659] [error]   14# RtlUserThreadStart in ntdll
[2021-02-06 10:45:53.659] [error]   
[2021-02-06 10:45:53.659] [error]   

[2021-02-06 10:45:53.659] [error]    0# 0x00007FF68C63524E in casparcg
[2021-02-06 10:45:53.659] [error]    1# 0x00007FF68C634D2F in casparcg
[2021-02-06 10:45:53.659] [error]    2# 0x00007FF68C8C9B8B in casparcg
[2021-02-06 10:45:53.659] [error]    3# 0x00007FFE92C31030 in VCRUNTIME140
[2021-02-06 10:45:53.659] [error]    4# is_exception_typeof in VCRUNTIME140
[2021-02-06 10:45:53.659] [error]    5# RtlCaptureContext2 in ntdll
[2021-02-06 10:45:53.659] [error]    6# 0x00007FF68C74446F in casparcg
[2021-02-06 10:45:53.659] [error]    7# 0x00007FF68C6642A8 in casparcg
[2021-02-06 10:45:53.659] [error]    8# 0x00007FF68C6C122E in casparcg
[2021-02-06 10:45:53.659] [error]    9# 0x00007FF68C6BF2D0 in casparcg
[2021-02-06 10:45:53.659] [error]   10# 0x00007FF68C631489 in casparcg
[2021-02-06 10:45:53.659] [error]   11# configthreadlocale in ucrtbase
[2021-02-06 10:45:53.659] [error]   12# BaseThreadInitThunk in KERNEL32
[2021-02-06 10:45:53.659] [error]   13# RtlUserThreadStart in ntdll
[2021-02-06 10:45:53.659] [error]   
[2021-02-06 10:45:53.925] [error]   Failed to execute command: CLS
[2021-02-06 10:45:53.925] [info]    Sent message to 127.0.0.1:501 CLS FAILED\r\n
[2021-02-06 10:45:53.936] [info]    Sent message to 127.0.0.1:200 TLS OK\r\n\r\n
[2021-02-06 10:45:53.936] [info]    Sent message to 127.0.0.1:200 DATA LIST OK\r\n\r\n
[2021-02-06 10:45:53.940] [error]   Exception: C:\Code\casparcg\official-master\src\protocol\util\http_request.cpp(72): Throw in function struct caspar::http::HTTPResponse __cdecl caspar::http::request(const class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > &,const class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > &,const class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > &)
[2021-02-06 10:45:53.940] [error]   Dynamic exception type: class boost::exception_detail::clone_impl<struct caspar::io_error>
[2021-02-06 10:45:53.940] [error]   [struct caspar::tag_msg_info * __ptr64] = Invalid Response
[2021-02-06 10:45:53.940] [error]   [struct caspar::tag_stacktrace_info * __ptr64] =  0# 0x00007FF68C63524E in casparcg
[2021-02-06 10:45:53.940] [error]    1# 0x00007FF68C6557C0 in casparcg
[2021-02-06 10:45:53.940] [error]    2# 0x00007FF68C749D81 in casparcg
[2021-02-06 10:45:53.940] [error]    3# 0x00007FF68C72121D in casparcg
[2021-02-06 10:45:53.940] [error]    4# 0x00007FF68C72DDF2 in casparcg
[2021-02-06 10:45:53.940] [error]    5# 0x00007FF68C71495C in casparcg
[2021-02-06 10:45:53.940] [error]    6# 0x00007FF68C744FAD in casparcg
[2021-02-06 10:45:53.940] [error]    7# 0x00007FF68C74446F in casparcg
[2021-02-06 10:45:53.940] [error]    8# 0x00007FF68C6642A8 in casparcg
[2021-02-06 10:45:53.940] [error]    9# 0x00007FF68C6C122E in casparcg
[2021-02-06 10:45:53.940] [error]   10# 0x00007FF68C6BF2D0 in casparcg
[2021-02-06 10:45:53.940] [error]   11# 0x00007FF68C631489 in casparcg
[2021-02-06 10:45:53.940] [error]   12# configthreadlocale in ucrtbase
[2021-02-06 10:45:53.940] [error]   13# BaseThreadInitThunk in KERNEL32
[2021-02-06 10:45:53.940] [error]   14# RtlUserThreadStart in ntdll
[2021-02-06 10:45:53.940] [error]   
[2021-02-06 10:45:53.940] [error]   

[2021-02-06 10:45:53.940] [error]    0# 0x00007FF68C63524E in casparcg
[2021-02-06 10:45:53.940] [error]    1# 0x00007FF68C634D2F in casparcg
[2021-02-06 10:45:53.940] [error]    2# 0x00007FF68C8C9B8B in casparcg
[2021-02-06 10:45:53.940] [error]    3# 0x00007FFE92C31030 in VCRUNTIME140
[2021-02-06 10:45:53.940] [error]    4# is_exception_typeof in VCRUNTIME140
[2021-02-06 10:45:53.940] [error]    5# RtlCaptureContext2 in ntdll
[2021-02-06 10:45:53.940] [error]    6# 0x00007FF68C74446F in casparcg
[2021-02-06 10:45:53.940] [error]    7# 0x00007FF68C6642A8 in casparcg
[2021-02-06 10:45:53.940] [error]    8# 0x00007FF68C6C122E in casparcg
[2021-02-06 10:45:53.940] [error]    9# 0x00007FF68C6BF2D0 in casparcg
[2021-02-06 10:45:53.940] [error]   10# 0x00007FF68C631489 in casparcg
[2021-02-06 10:45:53.940] [error]   11# configthreadlocale in ucrtbase
[2021-02-06 10:45:53.940] [error]   12# BaseThreadInitThunk in KERNEL32
[2021-02-06 10:45:53.940] [error]   13# RtlUserThreadStart in ntdll
[2021-02-06 10:45:53.940] [error]   
[2021-02-06 10:45:54.201] [error]   Failed to execute command: THUMBNAIL LIST
[2021-02-06 10:45:54.201] [info]    Sent message to 127.0.0.1:501 THUMBNAIL LIST FAILED\r\n

I hope someone can help me solve thie problem.
Thank you in advance.

2

Hi, looks like maybe firewall blocking it, or port already in use by another app. Try if temporarily disabling firewall helps.

3

I think I found the problem. I was running Companion in the background which also runs on port 8000.
Thank you for your help!

4

I thought I found the problem but I didn’t have the time to properly test it. It turns out I still get the same error. I don’t have Companion running (or even the Streamdeck software). I have also tried disabeling the Windows Firewall but it doesn’t seem te make a difference.

I have tested if there is something running on port 8000 by going to localhost:8000 (when the scanner is not running) in the browser but I get an ERR_EMPTY_RESPONSE (using Chrome) assuming there is nothing running on port 8000. When i do the same when the scanner software is running I get “Cannot GET /” and a 404 log in the scanner software.

Anyone have any idea?

5

Check if port 8000 is in use:
netstat -aof | findstr :8000

if you dont find anything
then restart windows
and re-check with the above netstat command

6

Thank you Dan!
Using your command I found there actually was something running on port 8000.
By using the Resource Monitor → Network tab → Listening Ports I managed to find out it was a Rocket Streaming Audio Server running in the background.