E302

For the complete documentation index optimized for AI agents, see llms.txt.

Variable Previously Declared

Erroneous Code Example

This error occurs when you try to declare a variable that has already been declared in the current scope. In this example, the variable user_name is declared twice.

Query getUser(userId: ID) =>
    userId <- N<User>(userId)::ID
    RETURN userId

Solution

Use a different variable name.

Query getUser(userId: ID) =>
    user_id <- N<User>(userId)::ID
    RETURN user_id