RocketChat/Rocket.Chat · error

Failed to create new room

Error message

Failed to create new room

What it means

During an import, the RoomConverter failed to create a channel/private group via the server's createChannelMethod/createPrivateGroupMethod. It logs the room name, member list and error, then rethrows — this room's import aborts and, because the error propagates, the import step fails rather than skipping. The inner check 'importer-channel-invalid-creator' fires when the mapped creator user no longer exists.

Source

Thrown at apps/meteor/server/lib/import/classes/converters/RoomConverter.ts:131

				roomInfo = await createDirectMessage(members, startedByUserId, true);
			} else {
				if (!roomData.name) {
					return;
				}
				if (roomData.t === 'p') {
					const user = await Users.findOneById(creatorId);
					if (!user) {
						throw new Error('importer-channel-invalid-creator');
					}
					roomInfo = await createPrivateGroupMethod(user, roomData.name, members, false, {}, {});
				} else {
					roomInfo = await createChannelMethod(creatorId, roomData.name, members, false, {}, {});
				}
			}

			roomData._id = roomInfo.rid;
		} catch (e) {
			this._logger.warn({ msg: 'Failed to create new room', name: roomData.name, members, err: e });
			throw e;
		}

		await this.updateRoomId(roomData._id as 'string', roomData);
	}

	async archiveRoomById(rid: string) {
		const responses = await Promise.all([Rooms.archiveById(rid), Subscriptions.archiveByRoomId(rid)]);

		if (responses[1]?.modifiedCount) {
			void notifyOnSubscriptionChangedByRoomId(rid);
		}
	}

	async updateRoomId(_id: string, roomData: IImportChannel): Promise<void> {
		const set = {
			ts: roomData.ts,
			topic: roomData.topic,

View on GitHub (pinned to b2c16d5842)

Solutions

1. Read err in the log entry: 'importer-channel-invalid-creator' means remap or re-import the users first
2. For duplicate names, delete or rename the existing room, or adjust the imported name, then re-run the import step
3. Fix the offending entries in the source export (name/members) and re-upload
4. Re-run — rooms already created in earlier progress are skipped

// pre-flight before the import step creates rooms
const creator = await Users.findOneById(creatorId);
if (!creator) throw new Error(`importer-channel-invalid-creator: ${creatorId}`);
const nameConflict = await Rooms.findOneByName(roomData.name);
if (nameConflict) {
	roomData.name = `${roomData.name}-imported`; // or skip/report
}

try {
	roomData._id = (await createChannelMethod(creatorId, roomData.name, members, false, {}, {})).rid;
} catch (e) {
	this._logger.warn({ msg: 'Failed to create new room', name: roomData.name, members, err: e });
	throw e; // abort this room's import — do not continue with an unset _id
}

When it happens

Trigger: Creator user id missing from Users when creating a private group; room name colliding with an existing channel/group of the same type; name validation failing after conversion of the source name (empty, too long, invalid characters); members list containing users that failed to import.

Common situations: Importing into a workspace that already has channels with the same names; users deleted between the prepare and import phases; Slack/Skype names that normalize to invalid Rocket.Chat room names.

Related errors

• error-importer-not-defined
• Import operation not initialized.
• error-importer-not-defined
• The file contains invalid syntax
• Failed to set user avatar from pending URL

AI-assisted analysis of RocketChat/Rocket.Chat@b2c16d5842 (2026-08-18). Data as JSON: /api/errors/d0790732079c4a6b. Report an issue: GitHub.