Error code and troubleshooting

Error code	Error message	Troubleshooting
1004	sign invalid	Incorrect accessId or accessKey. To fix the error, see Edit config.json file.
1106	permission deny	Your app account is not linked with your cloud project: Link devices by using the Tuya Smart or Smart Life app with your cloud project on the Tuya IoT Platform. For more information, see Link devices by app account. Incorrect username or password: Enter the correct account and password of the Tuya Smart or Smart Life app in the Account and Password fields. Note that the app account must be the one you used to link devices with your cloud project on the Tuya IoT Platform. Incorrect endpoint: See Endpoint and enter the correct endpoint. Incorrect countryCode: Enter the code of the country you select on logging in to the Tuya Smart or Smart Life app.
1100	param is empty	username or appSchema is empty: See Edit config.json file and enter the correct parameter.
2017	schema does not exist	Incorrect appSchema in config.json: See Edit config.json file and enter the correct parameter.
2406	skill id invalid	Cloud project created before May 25, 2021: Your cloud project on the Tuya IoT Platform should be created after May 25, 2021. Otherwise, you need to create a new project. For more information, see Operation on the Tuya IoT Platform. Incorret Aavailable Zone： Select all the Available Zone, for how to edit available zone paramter please refer to Edit project details. Select the correct Available Zone according to Region & Available Zone Correspondence.
28841105	No permissions. This project is not authorized to call this API	You have not authorized your cloud project to use the required APIs. Subscribe to the following required API products and authorize your project to use them. Authorization Smart Home Devices Management Smart Home Family Management Smart Home Scene Linkage Smart Home Data Service Device Status Notification