iflytek/astron-agent · error · TypeError

Argument 1 of RTCPeerConnection.removeTrack does not…

Error message

Argument 1 of RTCPeerConnection.removeTrack does not implement interface RTCRtpSender.

What it means

A TypeError raised by the browser's native removeTrack binding when the argument is not an RTCRtpSender — typically null/undefined because getSender() returned nothing or the track was never added. The shim calls removeTrack with an invalid sender after checking _isClosed.

Solutions

1. Only call removeTrack with a sender obtained from addTrack/addTransceiver return values
2. Guard for null/undefined sender before calling removeTrack
3. Verify the track/stream was actually added on this PeerConnection

When it happens

Trigger: Thrown at console/frontend/src/utils/avatar-sdk-web_3.1.2.1002/webrtc-player--YuOiwFd.js:2916 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of iflytek/astron-agent@5e758547a8 (2026-09-12). Data as JSON: /api/errors/1750b63e6b33d250. Report an issue: GitHub.

Appendix: source

Thrown at console/frontend/src/utils/avatar-sdk-web_3.1.2.1002/webrtc-player--YuOiwFd.js:2916

                (e.getTracks().forEach(function (e, t) {
                  var r = n.getTracks()[t];
                  e.addEventListener('enabled', function (e) {
                    r.enabled = e.enabled;
                  });
                }),
                  n.getTracks().forEach(function (e) {
                    r.addTrack(e, n);
                  }));
              }
            }),
            (p.prototype.removeTrack = function (t) {
              if (this._isClosed)
                throw c(
                  'InvalidStateError',
                  'Attempted to call removeTrack on a closed peerconnection.'
                );
              if (!(t instanceof e.RTCRtpSender))
                throw new TypeError(
                  'Argument 1 of RTCPeerConnection.removeTrack does not implement interface RTCRtpSender.'
                );
              var r = this.transceivers.find(function (e) {
                return e.rtpSender === t;
              });
              if (!r)
                throw c(
                  'InvalidAccessError',
                  'Sender was not created by this connection.'
                );
              var n = r.stream;
              (r.rtpSender.stop(),
                (r.rtpSender = null),
                (r.track = null),
                (r.stream = null),
                -1 ===
                  this.transceivers
                    .map(function (e) {

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