Dissolve the raspberry gelatin completely in boiling water, stirring until fully clear.
Measure the reserved pineapple juice and add cold water to make 1 1/2 cups, then stir into the gelatin.
Pulse the cranberries and sugar in a food processor until finely chopped and evenly coated.
Add the cranberry mixture, apple, pineapple, oranges, and pecans to a large dish and stir gently.
Pour the gelatin mixture over the fruit and mix until evenly combined.
Cover and refrigerate for at least 6 hours or overnight until fully set.
Before serving, gently stir with a fork to loosen the texture and serve chilled.