can't build PrivacySandboxJava

[cyberhorse208]

i just download the latest code, branch main. use Android Studio Hedgehog | 2023.1.1 Canary 5 to open the PrivacySandboxJava project. after the android gradle plugin upgrade(8.0.0-alpha02 to 8.0.2), i got error message like this:

Could not resolve all dependencies for configuration ':client-app:oemDebugRuntimeClasspath'. Could not create task ':example-sdk:privacySandboxClassesJarStubs'. Could not resolve all files for configuration ':example-sdk:detachedConfiguration3'. Could not find androidx.privacysandbox.tools:tools:1.0.0-SNAPSHOT. Searched in the following locations:

• https://dl.google.com/dl/android/maven2/androidx/privacysandbox/tools/tools/1.0.0-SNAPSHOT/maven-metadata.xml
• https://dl.google.com/dl/android/maven2/androidx/privacysandbox/tools/tools/1.0.0-SNAPSHOT/tools-1.0.0-SNAPSHOT.pom
• https://repo.maven.apache.org/maven2/androidx/privacysandbox/tools/tools/1.0.0-SNAPSHOT/maven-metadata.xml
• https://repo.maven.apache.org/maven2/androidx/privacysandbox/tools/tools/1.0.0-SNAPSHOT/tools-1.0.0-SNAPSHOT.pom Required by: project :example-sdk

did i do something wrong? how can i fix this?

[siran-work]

Thanks for reporting this issue! This issue can be fixed by updating AGP to the latest version (8.2.0-alpha08).

[cyberhorse208]

8.2.0-alpha08 not supported by Gradle 8.2 which is the latest version supported by my AS: Android Studio Hedgehog | 2023.1.1 Canary 5 Build #AI-231.7864.76.2311.10195651, built on May 25, 2023

error msg: The project is using an incompatible version (AGP 8.2.0-alpha08) of the Android Gradle plugin. Latest supported version is AGP 8.2.0-alpha05

so i change AGP to 8.2.0-alpha05, after build.gradle "sync now", i still get many errors like this when tried to run on my pixel 6(android 14 with privacy sandbox enabled):

Task :client-app:mergeExtDexPreviewDebug

FAILURE: Build completed with 2 failures.

1: Task failed with an exception.

• What went wrong: Execution failed for task ':client-app:compilePreviewDebugJavaWithJavac'.

  Could not resolve all files for configuration ':client-app:previewDebugCompileClasspath'. Failed to transform sdk-interface-descriptors.jar (project :example-sdk) to match attributes {artifactType=android-classes-jar, org.gradle.libraryelements=jar, org.gradle.usage=java-api}. Execution failed for ExtractCompileSdkShimTransform: D:\Users\StudioProjects\privacy-sandbox-samples\PrivacySandboxJava\example-sdk\build\intermediates\stub_jar\single\sdk-interface-descriptors.jar. Unable to proceed generating shim with no provided sdk descriptor entries in: D:\Users\StudioProjects\privacy-sandbox-samples\PrivacySandboxJava\example-sdk\build\intermediates\stub_jar\single\sdk-interface-descriptors.jar.Privacy Sandbox Sdk modules require at least one service declaration.

[siran-work]

The Unable to proceed generating shim with no provided sdk descriptor entries in: is an indication that there is no interface with @PrivacySanboxService specified. There are two options to resolve: 1) SDK modules require at least one library in its dependencies to contain an interface annotated with @PrivacySandboxService. So you may need to add something like the following to the sdk-implementation module:

package com.example.sdkimplementation

import androidx.privacysandbox.tools.PrivacySandboxService

@PrivacySandboxService interface SdkApi { fun createFile(sizeInMb: Int): String? }

The error message itself is from the client/app side attempting to generate shim code, but not having been provided with the @PrivacySandboxService from the SDK. Once you have a project that builds, you can verify the interface descriptors by looking at example-sdk/build/intermediates/stub_jar/sdk-interface-descriptors.jar

2) If the sdk doesn't require a service, you can specify android.experimental.privacysandboxsdk.requireServices=false.

[cshmerling]

Closing this due to inactivity. Please re-open if you are still having issues!