App sandbox not enabled

I have my own executable file which is named as "testQueue" and bundled with my main app(testApp) to achieve my requirements. testQueue is a executable file written in C . I sandboxed this executable using below options and added in the app : - Code signing : Mac developer 3rd party application - Enabled com.apple.security.app-sandbox = TRUE in testQueue.entitlements - Enabled com.apple.security.inherit = TRUE in testQueue.entitlements Still i received the following error from apple review team. ``` "App sandbox not enabled - The following executables must include the "com.apple.security.app-sandbox" entitlement with a Boolean value of true in the entitlements property list. Refer to the App Sandbox page for more information on sandboxing your app. testApp.app/Contents/Resources/testQueue" ``` i would like to know if anything else needs to be added in project settings?