Can't find method 'requestRouteToHost(int,int)' in class android.net.ConnectivityManager targeting SDK version 26

[paolorotolo]

I'm unable to build an APK with ProGuard enabled targeting Android O SDK version (targetSdkVersion 26).

Log:

Information: Gradle tasks [:app:assembleRelease]
Warning: org.osmdroid.tileprovider.modules.NetworkAvailabliltyCheck: can't find referenced method 'boolean requestRouteToHost(int,int)' in library class android.net.ConnectivityManager
Warning:there were 1 unresolved references to library class members.
Warning:Exception while processing task java.io.IOException: Please correct the above warnings first.
Error:Execution failed for task ':app:transformClassesAndResourcesWithProguardForRelease'.
> Job failed, see logs for details

[paolorotolo]

Anyway, you can suppress the warning adding this in ProGuard rules:

-dontwarn org.osmdroid.tileprovider.modules.NetworkAvailabliltyCheck

[paolorotolo]

You may also need mybuild.gradle:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.0"
    defaultConfig {
        applicationId "com.github.paolorotolo.osmtest"
        minSdkVersion 19
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {

            minifyEnabled true
            shrinkResources true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    implementation 'com.android.support:appcompat-v7:26.0.0-beta2'
    testImplementation 'junit:junit:4.12'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'

    compile 'org.osmdroid:osmdroid-android:5.6.5'

[spyhunter99]

thanks for the tip. i'll add it to our sample pro guard file

[secaw]

Well, the -dontwarn really is a dirty work around. requestRouteToHost(int,int) has been removed in API 26. It's being called in NetworkAvailabliltyCheck.getRouteToPathExists(final int hostAddress), which doesn't seem to be used anywhere. So either we should come up with a replacement for requestRouteToHost(int,int) there or just remove method getRouteToPathExists from NetworkAvailabliltyCheck and INetworkAvailablityCheck.

[spyhunter99]

just committed the change and updated the snapshots

[secaw]

Great, thanks.