Error Reference

Choose the stage where the error occurred, then search this page for the error code or a distinctive phrase. Messages in the tables preserve the text that the system can display. Placeholders such as $fieldName and $tableName are replaced with actual names in the error you receive.

Use this page when you already have a specific error. If you do not yet know where the issue occurs, follow Troubleshoot an App to collect the request, logs, and traceId first.

Editor validation

The error icon in the upper-right corner of the editor shows the current error count. Select an error to open the related configuration, then use the message to resolve it.

Error message or symptom	Cause	Solution
Type mismatch	A parameter, field, or formula expects a different type from the bound value	Bind a value of the expected type; do not include text such as a currency symbol in an integer value
Missing required setting	A component, action, API, or data operation is missing required configuration	Open the configuration identified by the error and provide a fixed value or valid binding
`Cannot find property $fieldName on data model $tableName`	The field was deleted, replaced, or is no longer available to the binding	Select an existing field, or create the required field in the data model before binding it
`Unknown table name` or `Unknown table id`	The referenced table no longer exists	Select a valid table or remove the unused reference
`Cannot find API definition`	The referenced third-party API was deleted	Select or create an API, or remove the reference if it is no longer used
`Cannot find field $fieldName on the response of API definition $apiName`	The API response structure changed and the previous result field is unavailable	Update the API response structure and bind an existing field
`Cannot find action flow`	The referenced Actionflow was deleted	Select or create an Actionflow
`Cannot find AI agent`	The referenced AI Agent was deleted	Select or create an AI Agent
`Unknown client variable`	The client variable was deleted or the reference is no longer valid	Select an existing client variable or remove the binding
`Get invalid data binding because of the modification of source data`	A source structure or type changed and invalidated the binding path	Remove the invalid binding and select a path from the current source
`Circular dependency found in components`	A component binds to itself, or components reference one another in a loop	Inspect the listed components and remove the binding that closes the loop
`Circular dependency found in action flow`	An Actionflow calls itself, or Actionflows call one another in a loop	Remove one call and redesign the direction of the calls
`Conditional data does not end with 'always'`	Conditional data has no fallback branch	Add Always as the final branch
`Conditional action does not end with 'always'`	A conditional action has no fallback branch	Add Always as the final branch
`Target table is required in db trigger $triggerName`	A database trigger has no target table	Select a valid table for the trigger
`Unknown theme color`	The referenced theme color no longer exists	Select another theme color or remove the reference
`Unknown variable type`	The configuration uses an undefined or unsupported variable type	Select a supported variable type
Duplicate type definition	The same custom type is defined more than once	Remove the duplicate and retain the definition that is still referenced
Constraint name conflicts with a table name	A constraint and table use the same name	Rename the constraint
Constraint name conflicts with a field name	A constraint and table field use the same name	Rename the constraint
Unique constraint has no fields	No field is included in the unique constraint	Add at least one field or remove the constraint
`Missing data of mutation`	A data operation result binding is no longer valid	Reconfigure the data operation and its result binding
`Field $fieldName is not in action flow $actionFlowName`	An Actionflow input or output changed and invalidated the field binding	Select a field that exists in the current Actionflow
Field is not available in the AI Agent	The AI Agent configuration changed and invalidated a field binding	Select a field available in the current AI Agent
Action is missing a page parameter	An action uses a page parameter that is not configured	Add the page parameter or change the action binding
Path parameter does not exist on the target page	The target page does not define the required path parameter	Add the path parameter or change the navigation action
Input data source is missing	The input action references a component that was deleted	Select a valid input component or remove the reference
Code component is missing	The referenced code component was deleted	Select a valid code component or remove the reference
Webhook request body is missing	The Webhook request body configuration was deleted or invalidated	Reconfigure the Webhook request body
Component does not exist	An action or binding references a deleted component	Select an existing component or remove the reference
Page variable is missing	A page variable was deleted or is undefined	Recreate the page variable or remove the reference
Referenced data source is missing	A page data source was deleted or invalidated	Recreate or select the data source, or remove the reference
Scheduled-job control action has no target	The action does not specify the scheduled job to control	Select a valid scheduled job
Target scheduled job does not exist	The referenced scheduled job was deleted	Select or create a scheduled job, or remove the action
`Only support modify json from page variable`	The target binding is not a page variable	Use a page variable as the target
`'mode' in set fold mold action has not been specified`	The action does not specify expand or collapse	Select the intended mode
`Get wrong component context in data binding`	The binding uses an invalid component or component scope	Remove the invalid binding and configure it again in the current scope
Page parameter is missing	A page parameter was deleted or is undefined	Add the page parameter again or remove the reference
`Unknown path parameter`	A path parameter was deleted or is undefined	Add the path parameter again or update the navigation configuration
Bound path type does not match the actual type	A source structure or type change invalidated the binding path	Remove the binding and select a path with the correct type
Local data for the select view is missing	The select view’s local data source is invalid	Configure the select view’s local data source again
Refresh target is missing	A refresh action references a page or list that was deleted	Select a valid refresh target or remove the action
Refresh target belongs to another page	The target is not on the current page	Select a component on the current page
Lists using local data cannot be refreshed	The target list uses a local data source	Remove the refresh action or use another data source type
Actionflow node data binding is missing	A node references data or a field that no longer exists	Configure the node binding again
Input data parameter is missing	An input-data action has no valid parameter	Configure the input parameter
Unknown tool	An AI Agent references a tool that no longer exists	Select or create a tool, or remove the reference
Unknown context request	An AI Agent references a context request that no longer exists	Select or create a context request, or remove the reference
Required action component does not exist	An action references a target component that was deleted	Select a valid component or remove the action
Action target is not a page	The action requires a page but targets another component	Select a page as the target
Bottom-navigation component does not exist	Bottom navigation references a page or component that was deleted	Select a valid target or remove the item
`Bottom navigation content cannot start with '@'`	The item uses an unsupported content format	Change the bottom-navigation item content
`Invalid input component`	The referenced component is not a valid input	Select an input component or remove the reference
`Invalid sheet component`	The referenced component is not a valid table	Select a table component or remove the reference
`Cannot set filter in value binding aggregation when it is not from data model`	The aggregate value does not come from a data model	Remove the filter or use a data-model aggregate
`Property $fieldName is invalid`	The binding references a property unavailable in the current scope	Review the field and binding path, then configure it again
Bound data is outside the table scope	The binding references data outside the current table or list scope	Configure the binding in the correct scope
Filter value is missing or is not Boolean	A filter is empty or returns a non-Boolean value	Bind a Boolean condition or remove the filter
Formula parameter type mismatch	A formula argument does not match the required parameter type	Bind a value of the type required by the formula
Custom-object item cannot be empty	A custom-object field has no value	Provide a valid value or remove the field
Component item title is missing	An item in the component has no title	Configure the title for the item identified by the error
`totalProgress has to be the multiple of step`	Total progress is not a multiple of the step value	Change total progress or the step value
Navigation action is missing a parameter	A required parameter for the target page is not configured	Bind every parameter required by the target page
Update-data action is invalid	The update action has no valid target, field, or binding	Review and reconfigure the update-data action
Deleting a value from a repeatable list is not supported	The operation attempts to remove one value from a repeatable list	Remove the operation or use a supported data structure and update method
Conditional-action condition is not Boolean	The conditional action binds a non-Boolean value	Bind Boolean data or a formula that returns Boolean
A conditional-data branch has no value	A branch has no result value	Configure a value of the correct type for the branch
Conditional-view condition is not Boolean	The conditional view binds a non-Boolean value	Bind Boolean data or a formula that returns Boolean
A conditional-data condition is not Boolean	A conditional branch binds a non-Boolean value	Bind Boolean data or a formula that returns Boolean

Sync Changes and Publish

Resolve editor validation errors before running Sync Changes or Publish again. Do not repeatedly submit the same failed operation; use the error code to identify the cause first.

Error code or message	Cause	Solution
`ANOTHER_APP_IS_DEPLOYING` / Project is currently deploying, please wait	Another publish task is running for the project	Wait for the current task to finish, then retry
`TARGET_PLATFORM_IS_DEPLOYING` / Project is currently deploying, please wait	The same client target is currently being published	Wait for the client publish to finish, then retry
`SUPPORT_SERVICE_IS_DEPLOYING` / Backend is currently deploying, please wait	Backend configuration is currently being synced or published	Wait for the backend task to finish, then retry
`CANNOT_DEPLOY_AN_OLDER_SCHEMA` / Deployment failed, please try again	The project state in the current editor session is outdated	Refresh the editor to load the latest state, review the changes, and retry
`PROJECT_ENV_CONFIG_SYNC_ERROR` / Data sync failed	Backend configuration did not finish syncing	Retry once; if it continues to fail, record the time and submit the error through the AI assistant
`TABLE_NAME_TOO_LONG` / Table name is too long	A data table name exceeds the system limit	Shorten the name, then sync or publish again
`TABLE_NAME_ALREADY_EXISTS` / Table name already exists	Two data tables use the same name	Give each table a unique name, then sync or publish again

Runtime

Runtime errors can appear in the page response, Network, or Runtime Logs. When a message includes a business name or ID, evaluate it with the current user, request parameters, and entries sharing the same traceId.

Error message	Cause	Solution
`Permission check failed`	The current user’s roles do not grant the required data or action permission	Inspect the error classification and message, then review the relevant data or action permission and make sure configuration changes were synced or published
`TABLE_ACCESS` or `User … has no permission for … on …`	The current user cannot perform the operation on the table, field, or rows	Follow Permissions to check the user’s roles and table-, field-, and row-level permissions
`duplicate key value violates unique constraint`	A value conflicts with existing data covered by a unique constraint	Use the constraint or field in the error to find the duplicate, then prevent duplicate submissions or handle the conflict
`delete or update must have filter`	A delete or update operation has no filter	Add a specific filter so that the operation cannot affect the entire table
`Action flow not found`	The Actionflow does not exist or is not available in the current backend version	Confirm that it was not deleted; after creating or changing it, run Sync Changes or Publish
`Validation error of type Wrong Type`	A request parameter type does not match the backend definition	Return to the trigger, bind a value of the correct type, and account for empty values
`timeout`, `service timeout`, or a failure after a long execution	The Actionflow or one of its nodes reached a timeout	Review execution mode, plan, and node limits in Actionflow timeout policy
`server internal error`	A generic server error does not contain enough information to identify the cause	Record the time and steps, use the `traceId` in Runtime Logs, and submit a defect through the AI assistant if the cause remains unclear