Build.gradle不接受版本代码作为字符串

Question

Version code updates for 1 to 9 as string but, when update to 10 gives compile time error :

Cannot cast object '10' with class 'java.lang.String' to class 'java.lang.Integer'

    versionCode = "10"

If i make version code as integer 10, i am able to generate signed apk but not able to upload in play store.

project was initially made in eclipse later migrated to android studio

buildscript {
repositories {
    maven { url 'https://maven.fabric.io/public' }
}

dependencies {
    classpath 'io.fabric.tools:gradle:1.+'
}
}

android { compileSdkVersion 23 buildToolsVersion '23.0.2' useLibrary 'org.apache.http.legacy'

defaultConfig {
    minSdkVersion 16
    targetSdkVersion 23
    versionCode = 10
    versionName = "1.1.12"
    multiDexEnabled true
}

lintOptions {
    // set to true to turn off analysis progress reporting by lint
    quiet true
    // if true, stop the gradle build if errors are found
    abortOnError false
    // if true, only report errors
    ignoreWarnings true
}
buildTypes {
    release {
        minifyEnabled false
        zipAlignEnabled true
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
    }
}




sourceSets.main {
    jniLibs.srcDir 'libs'
    jni.srcDirs = [] //disable automatic ndk-build call
}

}

Answer 1

Cannot cast object '10' with class 'java.lang.String' to class 'java.lang.Integer'

1. versionCode must be integer value .

2. remove =

android:versionCode

An integer value that represents the version of the application code, relative to other versions. The value is an integer so that other applications can programmatically evaluate it, for example to check an upgrade or downgrade relationship. You can set the value to any integer you want, however you should make sure that each successive release of your application uses a greater value. The system does not enforce this behavior, but increasing the value with successive releases is normative.

  minSdkVersion 16
    targetSdkVersion 23
    versionCode  10
    versionName "1.1.12"
    multiDexEnabled true

Then Clean-Rebuild-Run .

FYI

 versionCode Integer.parseInt("10") // String to Integer convert

Answer 2

I got a hunch that Gradle interpreted it as a char, and just assigned the ASCII code of the character 9 to the versionCode (and that's why it doesn't work with multiple characters, because then it is assumed as a string).

Since the ASCII code of the character 9 is 57, you should try uploading it with the versionCode 58 or higher (because Google Play does not allow downgrades).

Answer 3

Change the for versionCode = "10" to this versionCode 10

Thats the default format