Melt chocolate chips with sweetened condensed milk in a large sauce pan, over low heat, until smooth and creamy.
Add the cocoa powder, and cream cheese, and continue to stir the mixture until well combined.
Add the vanilla and raspberries. Continuing to mix well.
In a small bowl, add arrowroot and water. Stir until smooth.
Add the corn starch mixture to the chocolate mixture and stir for at least one
minute or until the chocolate mixture begins to thicken.
Remove from heat. Stir in a pinch of salt, and if desired, chopped pecans.
Let the mixture cool for about 15 minutes.
Remove the crust from the freezer and pour the chocolate filling into the pie dish,.
Chill in the refrigerator for at least 4 hours.