Phoenix/Elixir Permission Denied on Finalizing deploy

[jetroroa]

stuck on this and having this error

Finalizing deploy :
! Running before_live hooks

! FAILED TO BEFORE_LIVE1: MIX ECTO.CREATE --QUIET !

Exit
 1

Command
 su - gonano -c "cd /app; siphon --prefix '' -- bash -i -l -c \"mix ecto.create --quiet\""

Output
 ** (File.Error) could not write to file "/app/_build/prod/lib/appzname/.mix/compile.protocols": permission denied
     (elixir) lib/file.ex:953: File.write!/3
     (mix) lib/mix/tasks/compile.protocols.ex:126: Mix.Tasks.Compile.Protocols.consolidate/6
     (mix) lib/mix/task.ex:316: Mix.Task.run_task/3
     (mix) lib/mix/tasks/compile.ex:105: Mix.Tasks.Compile.run/1
     (mix) lib/mix/task.ex:316: Mix.Task.run_task/3
     lib/mix/ecto.ex:63: Mix.Ecto.ensure_repo/2
     lib/mix/tasks/ecto.create.ex:37: anonymous fn/3 in Mix.Tasks.Ecto.Create.run/1
     (elixir) lib/enum.ex:765: Enum."-each/2-lists^foreach/1-0-"/2

Error : failed to execute hook (before_live) on 993cc1ac17cb320358b8b64e23acb67a5427d6de92de282340fe8d01acf0f917: util:Exec:/opt/nanobox/hooks/before_live: bad exit code(1):
Context : failed to finalize deploy -> failed to run before deploy hooks