ERROR_CODE

// 1. API call error
trtc.startLocalVideo().catch(error => {
 if (error.code === TRTC.ERROR_CODE.DEVICE_ERROR) {}
});
// 2. Non-API error (SDK cannot recover after internal retry)
trtc.on(TRTC.EVENT.ERROR, (error) => {
   if (error.code === TRTC.ERROR_CODE.OPERATION_FAILED) {}
});

Description: The parameters passed in when calling the interface do not meet the API requirements.
Handling suggestion: Please check whether the passed-in parameters comply with the API specifications, such as whether the parameter type is correct.

extraCode	Description
5001	Required parameter is missing
5002	Incorrect parameter type
5003	Parameter is empty
5004	Incorrect parameter instance
5005	Parameter value out of range
5006	Parameter value is less than 0
5007	Parameter value is below the minimum
5008	Parameter value exceeds the maximum
5009	elementId not found on the page
5010	Parameter is not of type HTMLElement
5011	streamId does not meet specifications
5012	roomId out of valid range [1, 4294967294]
5013	strRoomId is not a valid string
5014	streamType is required when userId is not '*'
5015	Either roomId or strRoomId must be provided
5016	roomId must be numeric. Use strRoomId for string room IDs
5017	ArrayBuffer size cannot be empty. Thrown by TRTC.sendSEIMessage, TRTC.sendCustomMessage
5018	ArrayBuffer is oversized. Thrown by TRTC.sendSEIMessage, TRTC.sendCustomMessage

Description: The API prerequisite requirements are not met.
Handling suggestion: Check whether the calling logic complies with the API prerequisites. Common cases: 1. Calling role-switching before entering the room; 2. The remote user or stream being played does not exist.

extraCode	Description
5101	API called before entering the room (e.g. startRemoteVideo, muteRemoteAudio, switchRole require entering the room first)
5102	Remote user does not exist (e.g. the userId passed to startRemoteVideo is not in the room)
5103	Remote stream type does not exist (e.g. streamType=SUB is specified but the remote user is not screen sharing)
5104	Repeated API call (e.g. calling enterRoom again after already in the room)
5105	Camera not enabled (e.g. virtual background requires camera to be active)
5106	Microphone not enabled (e.g. AI denoiser requires microphone to be active)
5107	Role TRTC.TYPE.ROLE_AUDIENCE cannot call this API
5108	SEI not enabled. Initialize with TRTC.create({ enableSEI: true })
5109	Must publish video before calling sendSEIMessage

Description: The current environment does not support this function.
Handling suggestion: Use TRTC.isSupported to detect browser capabilities. If unsupported, guide users to switch browsers. See Check Environment and Device Before Calls

extraCode	Description
5201	Page protocol is not HTTPS (audio/video capture is not supported)
5202	Browser does not support WebRTC (browser version may be too low)
5203	Browser does not support H264 encoding
5204	Browser does not support H264 decoding
5205	Browser does not support screen sharing
5206	Browser does not support small stream encoding
5207	Browser does not support SEI sending/receiving
5208	Browser does not support WebGL
5209	Browser version does not support this feature. Please upgrade to the latest version
5210	Browser version does not support this plugin. Please upgrade to the latest version

Description: Exception occurred when obtaining device or capturing microphone/camera/screen sharing.

Affected APIs: trtc.startLocalAudio, trtc.startLocalVideo, trtc.startScreenShare

Suggestion: Guide users to check whether the device has a camera/microphone, whether the system has authorized the browser, and whether the browser has authorized the page. It is recommended to add a device detection step before entering the room. See Check Environment and Device Before Calls

For more detailed exception categories, refer to the following extraCode:

extraCode	Description
5301	NotFoundError — No matching media device found (audio, video, or screen sharing). E.g. requesting video on a PC without a camera. Suggestion: Guide users to check external devices before the call.
5302	NotAllowedError — User denied the microphone/camera/screen sharing request, or system permission was denied. Suggestion: Prompt the user to grant permission. If denied by the system, call rtcError.handler to jump to system settings.
5303	NotReadableError — Device is authorized but inaccessible, possibly due to hardware errors or another application occupying the device. Suggestion: Prompt the user: "Unable to access camera/microphone. Please close other apps using the device and try again." On Windows, note that the camera is exclusive (microphone is not).
5304	OverconstrainedError — Invalid cameraId/microphoneId. Suggestion: Verify that the ID comes from the device enumeration API.
5305	InvalidStateError — Page is not activated (no user interaction yet). Suggestion: Start camera/microphone only after the user clicks the page.
5306	SecurityError — System security policy blocks device access. Suggestion: Check system restrictions. Start camera/microphone after user interaction.
5307	AbortError — Device cannot be used for unknown reasons. Suggestion: Try a different device or browser, and verify the device is working.
5308	Camera capture failed after SDK retry. Reason: Camera error or user revoked browser capture permission. Suggestion: Prompt user to check camera status and permissions.
5309	Microphone capture failed after SDK retry. Reason: Microphone error or user revoked browser capture permission. Suggestion: Prompt user to check microphone status and permissions.
5310	Microphone sample rate mismatch. Prevents use of AIDenoiser, AudioMixer, and VoiceChanger. Reason: Firefox does not support connecting AudioNodes across different sample rates. Suggestion: Use another browser such as Chrome.

Reference: getUserMedia exceptions and getDisplayMedia exceptions

trtc.startLocalVideo(...).catch(function(rtcError) {
 if(rtcError.code == TRTC.ERROR_CODE.DEVICE_ERROR) {
   // Guide the user to check the device
   switch(rtcError.extraCode) {
     case 5301:
       // Can't find a camera or microphone, guide the user to check if the microphone and camera are working.
       break;
     case 5302:
       if (error.handler) {
         error.handler();
         // Prompt the user the browser permission(camera/microphone/screen sharing) has been denied by system. The browser will jump to the System Settings APP, please enable the relevant permissions!
       } else {
         // Prompt the user to allow camera, microphone, and screen share capture permissions on the page.
       }
       break;
     // ...
   }
 }
})

Description: Abnormal data returned from the server.
Affected APIs: enterRoom, startLocalVideo, startLocalAudio, startScreenShare, startRemoteVideo, switchRole
Handling suggestion: Server exceptions are usually encountered during development. Common causes: expired userSig, account arrears, TRTC service not enabled, etc.

extraCode	Description
5401	This feature requires a purchased package
-8	Incorrect sdkAppId. Please verify the value
-10012	roomId is missing or invalid. Use strRoomId for string room IDs
-10015	Failed to obtain server node
-10016	Server internal communication timeout (3s)
-10035	Server-side room switch failed
-10037	Anchor role does not support room switching
-100006	Permission check failed. Verify the privateMapKey in enterRoom. See Enable advanced permission control
-100013	Account arrears. Check your service status in the TRTC Console
-100021	Server overload, failed to enter room
-100022	Server allocation failed
-100024	TRTC service not enabled. Enable it in the IM Console
-102006	Flow control error: add user failed
-102010	No permission to create room (advanced permission control enabled). See Enable advanced permission control
-102023	Request parameter error (backend)
70001	userSig expired. Regenerate and retry. If it expires immediately, check if the validity period is too short or set to 0
70002	userSig length is 0. Verify your signature calculation
70003	userSig verification failed (content may be truncated). Check if buffer length is sufficient
70004	userSig verification failed (content may be truncated). Check if buffer length is sufficient
70005-70008	userSig verification failed. Use tools to verify the generated userSig
70009	userSig verification failed with business public key. Ensure the private key and sdkAppId match
70010	userSig verification failed. Use tools to verify the generated userSig
70013	userId in userSig does not match the request userId
70014	sdkAppId in userSig does not match the request sdkAppId
70015	No verification method found for the sdkAppId and account type. Confirm the account integration is complete
70016	Public key length is 0. Confirm the public key has been uploaded. If re-uploaded, wait 10 minutes and retry
70017	Third-party ticket verification timeout. Retry or contact TLS support (QQ: 3268519604)
70018	Third-party ticket verification failed
70019	The ticket field is empty. Please fill in userSig correctly
70020	sdkAppId not found. Confirm it is configured on Tencent Cloud
70052	userSig expired. Regenerate and retry
70101	Request packet is empty
70102	Incorrect account type in request
70103	Invalid phone number format
70104	Invalid email format
70105	Invalid TLS account format
70106	Invalid account format type
70107	userId is not registered
70113	Invalid batch quantity
70114	Restricted for security reasons
70115	uin does not match the developer uin for the sdkAppId
70140	sdkAppId and acctype mismatch
70145	Incorrect account type
70169	Internal error. Retry or contact TLS support (QQ: 3268519604)
70201-70203	Internal error. Retry or contact TLS support (QQ: 3268519604)
70204	sdkAppId has no corresponding acctype
70205	Failed to find acctype. Retry
70206	Invalid batch quantity in request
70207-70208	Internal error. Retry
70209	Failed to obtain developer uin flag
70210	uin in request is not a developer uin
70211	uin in request is invalid
70212-70213	Internal error. Retry or contact TLS support (QQ: 3268519604)
70214	Failed to verify internal ticket
70221	Invalid login status. Re-authenticate with userSig
70222	Internal error. Retry
70225	Internal error. Retry or contact TLS support (QQ: 3268519604)
70231	Internal error. Retry or contact TLS support (QQ: 3268519604)
70236	Failed to verify user signature
70308	Internal error. Retry or contact TLS support (QQ: 3268519604)
70346	Ticket verification failed
70347	Ticket verification failed (expired)
70348	Internal error. Retry or contact TLS support (QQ: 3268519604)
70362	Internal timeout. Retry or contact TLS support (QQ: 3268519604)
70401	Internal error. Retry
70402	Invalid parameter. Check required fields and protocol requirements
70403	Initiator is not an App administrator and lacks permission
70050	Rate limited due to too many failed retries. Verify the ticket and retry in 1 minute
70051	Account has been blacklisted. Contact TLS support (QQ: 3268519604)

Description: Unrecoverable exception after SDK retries, typically caused by browser or network issues.
Affected APIs: enterRoom, startLocalVideo, startLocalAudio, startScreenShare, startRemoteVideo, switchRole
Handling suggestions:

• Verify that the required domain names and ports are accessible in your network environment. See Handle Firewall Restriction
• For other issues, contact us on Telegram

extraCode	Description
5501	Firewall restriction: SDK cannot establish a media connection after retries, causing publish/subscribe to fail. See Handle Firewall Restriction
5502	Re-enter room failed: After 30s+ of network outage, SDK tried to re-enter but failed (likely due to expired userSig). Use the latest userSig to call TRTC.enterRoom again
5503	Error in business event callback. Check your callback function logic
5505	Video encoding failed (device may not support H264). Submit a Web SDK Capability Request to enable VP8 encoding
5506	Audio encoding failed. Upgrade to the latest SDK version, or prompt the user to update their system
5507	Video decoding failed. See the solution for 5505
5508	Audio decoding failed. Upgrade to the latest SDK version, or prompt the user to update their system

Description: API execution was aborted. This occurs when an API is called or re-called without meeting its lifecycle requirements (e.g. calling enterRoom or startLocalXxx continuously, or calling exitRoom before entering the room).
Affected APIs: enterRoom, startLocalVideo, startLocalAudio, startScreenShare, startRemoteVideo, switchRole
Handling suggestion: You can safely ignore this error code, as the SDK handles it without side effects. Optionally, use it to suppress unnecessary calls in your business logic.

Description: Unknown or undefined error
Handling suggestion: Contact us on Telegram