Goose で PostgreSQL 関数を作成するときに発生する「Unterminated Dollar-Quoted String」エラーを修正する方法

(pq: unterminated dollar-quoted string at or near "$BODY$
BEGIN
    LOOP
        -- first try to update the key
        UPDATE userslocations SET count = count+1 WHERE userid = user_id AND locationid = location_id;
")

<code class="sql">   CREATE OR REPLACE FUNCTION add_userlocation(user_id INT, location_id INT) RETURNS VOID AS
   $BODY$
-- +goose StatementBegin
   BEGIN
       LOOP
           UPDATE userslocations SET count = count+1 WHERE userid = user_id AND locationid = location_id;
        IF found THEN
            RETURN;
        END IF;
        BEGIN
            INSERT INTO userslocations(userid,locationid, count) VALUES (user_id, location_id, 1);
               RETURN;
           EXCEPTION WHEN unique_violation THEN
        END;
       END LOOP;
-- +goose StatementEnd
   END;
   $BODY$
   LANGUAGE plpgsql;</code>