The error complains that I have not set the signingConfig.release.keyPassword, however I am setting it.

I already tried hardcoding the password instead retrieving it from the key.properties file however that didn't help.

```
// build.gradle file  

// ... the rest of the build code

android {        

    signingConfigs {
        release {
            keyAlias keystoreProperties['keyAlias']
            keyPassword keystoreProperties['keyPassword']
            storeFile file(keystoreProperties['storeFile'])
            storePassword keystoreProperties['storePassword']
        }
    }

    buildTypes {
        release {
            signingConfig signingConfigs.release
        }
    }
} 

```