Build Failing

[jeevansurendran]

I tried to use the material design for chips and these are the problems I faced

1. I first implemented the plugin and it only works for Android P
   2)Then when I implemented it. It seems that I cannot use "com.android.support:support-v4:28.0.0-alpha1" because of some error.

program type already present: android.support.v4.app.INotificationSideChannel$Stub$Proxy
Message{kind=ERROR, text=Program type already present:
android.support.v4.app.INotificationSideChannel$Stub$Proxy, sources=[Unknown source file], tool
name=Optional.of(D8)}

3)i then used support library 27.1.1 it worked but ram consumtion became very high.

[dsn5ft]

If you want to use com.android.support:support-v4:28.0.0-alpha1, then you have to use com.android.support:design:28.0.0-alpha1 instead of com.google.android.material:material:1.0.0-alpha1.

[jeevansurendran]

I have implemented everything it's still shows an error. It's a build error.

I want to use something called chips in material design

[dsn5ft]

Can you send your build.gradle file?

[jeevansurendran]

My gradle is here.
I will link a related stackoverflow question here.

apply plugin: 'com.android.application'

android {
    compileSdkVersion 'android-P'

    defaultConfig {
        applicationId "com.silverpants.todolist"
        minSdkVersion 21
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        targetCompatibility JavaVersion.VERSION_1_8
        sourceCompatibility JavaVersion.VERSION_1_8
    }
}

dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')

    implementation 'com.android.support:appcompat-v7:28.0.0-alpha1'
    implementation 'com.android.support:design:28.0.0-alpha1'
    implementation 'com.android.support:support-v4:28.0.0-alpha1'

    implementation 'com.android.support.constraint:constraint-layout:1.1.0'
    implementation 'com.google.android.material:material:1.0.0-alpha1'

    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}

Thhe problem I am facing while developing the app is that, i am not able to use support libarary

implementation 'com.android.support:support-v4:28.0.0-alpha1'

because it says the program type is already present.
Error Log Below.

Program type already present: android.support.v4.app.INotificationSideChannel$Stub$Proxy Message{kind=ERROR, text=Program type already present: android.support.v4.app.INotificationSideChannel$Stub$Proxy, sources=[Unknown source file], tool name=Optional.of(D8)}

some link which might help you :-
https://material.io/develop/android/components/chip/
https://material.io/develop/android/docs/getting-started/

[braulio94]

Same error here:

• If I implement support for android P I can't install app on my android api 27 device.
• If I implement the material library it will fail to build project.
  What's the solution for this?

[braulio94]

What's the solution for this?

Follow this steps

[dsn5ft]

@jeevansurendran the error is happening because you are using both com.android.support:design:28.0.0-alpha1 and com.google.android.material:material:1.0.0-alpha1. You either have to stick with all of the com.android.support libraries and use com.android.support:design:28.0.0-alpha1, or you have to migrate to androidx and then you can use com.google.android.material:material:1.0.0-alpha1 (without com.android.support:design:28.0.0-alpha1). I've updated our getting started docs to be more clear about this - https://github.com/material-components/material-components-android/blob/master/docs/getting-started.md

[jeevansurendran]

What about these views?
android.support.design.widget.CoordinatorLayout
android.support.design.widget.AppBarLayout
android.support.v7.widget.Toolbar

What will be the replacement for these views

[dsn5ft]

CoordinatorLayout has moved to the androidx.coordinatorlayout:coordinatorlayout:1.0.0-alpha1 dependency, and the androidx.coordinatorlayout.widget package.

AppBarLayout is still in MDC-Android (com.google.android.material:material:1.0.0-alpha1) in the com.google.android.material.appbar package.

Toolbar has moved to the androidx.appcompat:appcompat:1.0.0-alpha1 dependency, and the androidx.appcompat.widget package.

I recommend following the instructions here for how to migrate to the new androidx libraries - https://developer.android.com/studio/preview/features/#androidx_refactoring.

[jeevansurendran]

Thanks a lot @dsn5ft that link was very helpful.

[dsn5ft]

No problem, closing this issue now but feel free to reopen if it is not resolved.