Build failed with an exception

[josephraj2k16]

hi,I have imported your project,and while building its shows an error of,

ProcessException: Process "C:\Users\Harivi\Downloads\FlutterCalendar-master\FlutterCalendar-master\android\gradlew.bat" exited abnormally:

FAILURE: Build failed with an exception.

• Where:
  Build file 'C:\Users\Harivi\Downloads\FlutterCalendar-master\FlutterCalendar-master\android\app\build.gradle' line: 43

• What went wrong:
  A problem occurred evaluating project ':app'.

path may not be null or empty string. path='null'

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 2s
Command: C:\Users\Harivi\Downloads\FlutterCalendar-master\FlutterCalendar-master\android\gradlew.bat app:properties

Finished with error: Please review your Gradle project setup in the android/ folder.

this is the build.gradle file from ur project.

`def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
localPropertiesFile.withReader('UTF-8') { reader ->
localProperties.load(reader)
}
}

def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
}

apply plugin: 'com.android.application'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"

def keystoreProperties = new Properties()
def keystorePropertiesFile = rootProject.file('key.properties')
if (keystorePropertiesFile.exists()) {
keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
}

android {
compileSdkVersion 28

lintOptions {
    disable 'InvalidPackage'
}

defaultConfig {
    applicationId "com.graham.calendar"
    minSdkVersion 23
    targetSdkVersion 28
    versionCode 1
    versionName "1.2"
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}

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

buildTypes {
    release {
        // Signing with the debug keys for now, so `flutter run --release` works.
        signingConfig signingConfigs.debug
        signingConfig signingConfigs.release
    }
}

}

flutter {
source '../..'
}

dependencies {
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
}

apply plugin: 'com.google.gms.google-services'`

[mattgraham1]

Hi, are you sure you have the latest code. From looking at the error the build.gradle file should have the line "signingConfig signingConfigs.release" commented out. I just looked at the master branch and that line is commented out. Please try and pull the most recent code from the master branch (i.e. 'git pull origin master').