Exec : /usr/bin/sudo : Permission Denied

My snapcraft.yaml is as follows :

name: hapi-combo11
base: core18
version: '1.0.11'
summary: Hapi Server Linux-x64
description: |
  Hapi Server Linux-x64
grade: stable
confinement: strict
architectures:
  - build-on: amd64

apps:
  curl:
    command: curl
  hapis1:
     command: /snap/hapi-combo11/current/hapi-server-v1.0.10/bin/node /snap/hapi-combo11/current/hapi-server-v1.0.10/test/server-test.js
  hapis-server:
    command:  /snap/hapi-combo11/current/hapi-server-v1.0.10/hapi-server --logdir="/home/parallels/snap" --metadata_dir="/home/parallels/snap" 

  
parts:
  hapis1:
    source: https://github.com/drunkenlord/snapp-happ/releases/download/v1.0.0.1/hapi-server-v1.0.10.tar.gz
    plugin: dump
  hapis-server:
    source: https://github.com/drunkenlord/snapp-happ/releases/download/v1.0.0.1/hapi-server-v1.0.10.tar.gz
    plugin: dump
  curl:
    source: http://curl.haxx.se/download/curl-7.45.0.tar.bz2
    plugin: autotools

Upon success, when I am trying to trigger the following commands :
sudo hapi-combo11.hapis1 sudo hapi-combo11.hapis-server

I am receiving the following error : exec : /usr/bin/sudo : Permission Denied Any help would be appreciated.

I am a bit confused are you running:

$ sudo hapi-combo11.hapis1 sudo hapi-combo11.hapis-server

or

$ sudo hapi-combo11.hapis1
$ sudo hapi-combo11.hapis-serv

FYI, the snippet --metadata_dir="/home/parallels/snap" hardcodes the path to /home/parallels, which may not be accessible inside the snap mount namespace, perhaps you want /var/snap/hapi-combo11/current?