Visual Studio Code – dbt Model in VS Code: Error 'Illegal input character 303' with BigQuery

I’m using dbt with VS Code to build a model on BigQuery. I’m encountering the following error:

Syntax error: Illegal input character "\303" at [24:15]

This is my script. I’ve already tried the following steps:

• Checked the code for any non-printable or hidden characters.

• Ensured that my file is saved with UTF-8 encoding.

• Removed any special formatting by copying the code to a plain text editor.

{{ config(
    tags=["PII", "LAGERL23B"],
    materialized="table"
) }}

WITH
    -- Quell-Daten laden und alle Transformationen in einer einzigen CTE durchführen
    Extraktion_Details AS (
        SELECT 
            *,
            CONCAT(
                SUBSTRING(CAST(Artikelfarbennummer AS STRING), 1, 2), '-', 
                SUBSTRING(CAST(Artikelfarbennummer AS STRING), 3, 4), '/', 
                SUBSTRING(CAST(Artikelfarbennummer AS STRING), 7, 2)
            ) AS Artikelnummer,
            SUBSTRING(CAST(Artikelfarbennummer AS STRING), 7, 2) AS Farbnummer,
            SUBSTRING(CAST(Artikelfarbennummer AS STRING), 1, 6) AS Artikelnummer_ohne_Farbe,
            SUBSTRING(CAST(FORM8 AS STRING), 1, 2) AS PROD2
        FROM {{ ref("stg_LAGERL23B") }} AS LAGERL23B
    ),

    Neuer_Schlüssel AS (
        SELECT 
            *,
            CONCAT(Kundennummer, '_', PROD2) AS Key_Kunde
        FROM Extraktion_Details 
    )

-- Finaler Output
SELECT COUNT(*) 
FROM Neuer_Schlüssel