Post clone script not working

I have put appcenter-post-clone.sh file next to gradle file (project directory) but its not being used.
This file is 
```
#!/usr/bin/env bash

# do npm install 
npm install

# do prod build
ionic build --prod

# copy files to android
npx cap copy android

```
I have also tried to put this file on every folder but still not being taken/used.