인프런 커뮤니티 질문&답변

하나는 "NullPointerException: Cannot invoke "String.length()" because "<parameter1>" is null" 이런 에러인거 같은데....대체 어디서 잘못된걸까요. 에러가 여러개 인건가요?

FAILURE: Build completed with 2 failures.

1: Task failed with an exception.

-----------

* What went wrong:

Execution failed for task ':app:checkDebugAarMetadata'.

> A failure occurred while executing com.android.build.gradle.internal.tasks.CheckAarMetadataWorkAction

> 5 issues were found when checking AAR metadata:

* Try:

> Run with --info or --debug option to get more log output.

> Run with --scan to get full insights.

* Exception is:

org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:checkDebugAarMetadata'.

Caused by: org.gradle.workers.internal.DefaultWorkerExecutor$WorkExecutionException: A failure occurred while executing com.android.build.gradle.internal.tasks.CheckAarMetadataWorkAction

Caused by: java.lang.RuntimeException: 5 issues were found when checking AAR metadata:

1. Dependency 'androidx.appcompat:appcompat-resources:1.7.0' requires libraries and applications that

depend on it to compile against version 34 or later of the

Android APIs.

:app is currently compiled against android-33.

Also, the maximum recommended compile SDK version for Android Gradle

plugin 8.0.0 is 33.

Recommended action: Update this project's version of the Android Gradle

plugin to one that supports 34, then update this project to use

compileSdk of at least 34.

Note that updating a library or application's compileSdk (which

allows newer APIs to be used) can be done separately from updating

targetSdk (which opts the app in to new runtime behavior) and

minSdk (which determines which devices the app can be installed

on).

2. Dependency 'androidx.appcompat:appcompat:1.7.0' requires libraries and applications that

depend on it to compile against version 34 or later of the

Android APIs.

:app is currently compiled against android-33.

Also, the maximum recommended compile SDK version for Android Gradle

plugin 8.0.0 is 33.

Recommended action: Update this project's version of the Android Gradle

plugin to one that supports 34, then update this project to use

compileSdk of at least 34.

Note that updating a library or application's compileSdk (which

allows newer APIs to be used) can be done separately from updating

targetSdk (which opts the app in to new runtime behavior) and

minSdk (which determines which devices the app can be installed

on).

3. Dependency 'androidx.core:core-ktx:1.13.0' requires libraries and applications that

depend on it to compile against version 34 or later of the

Android APIs.

:app is currently compiled against android-33.

Also, the maximum recommended compile SDK version for Android Gradle

plugin 8.0.0 is 33.

Recommended action: Update this project's version of the Android Gradle

plugin to one that supports 34, then update this project to use

compileSdk of at least 34.

Note that updating a library or application's compileSdk (which

allows newer APIs to be used) can be done separately from updating

targetSdk (which opts the app in to new runtime behavior) and

minSdk (which determines which devices the app can be installed

on).

4. Dependency 'androidx.core:core:1.13.0' requires libraries and applications that

depend on it to compile against version 34 or later of the

Android APIs.

:app is currently compiled against android-33.

Also, the maximum recommended compile SDK version for Android Gradle

plugin 8.0.0 is 33.

Recommended action: Update this project's version of the Android Gradle

plugin to one that supports 34, then update this project to use

compileSdk of at least 34.

Note that updating a library or application's compileSdk (which

allows newer APIs to be used) can be done separately from updating

targetSdk (which opts the app in to new runtime behavior) and

minSdk (which determines which devices the app can be installed

on).

5. Dependency 'androidx.annotation:annotation-experimental:1.4.0' requires libraries and applications that

depend on it to compile against version 34 or later of the

Android APIs.

:app is currently compiled against android-33.

Also, the maximum recommended compile SDK version for Android Gradle

plugin 8.0.0 is 33.

Recommended action: Update this project's version of the Android Gradle

plugin to one that supports 34, then update this project to use

compileSdk of at least 34.

Note that updating a library or application's compileSdk (which

allows newer APIs to be used) can be done separately from updating

targetSdk (which opts the app in to new runtime behavior) and

minSdk (which determines which devices the app can be installed

on).

==============================================================================

2: Task failed with an exception.

-----------

* What went wrong:

Execution failed for task ':app:mergeExtDexDebug'.

> Could not resolve all files for configuration ':app:debugRuntimeClasspath'.

> Failed to transform appcompat-resources-1.7.0.aar (androidx.appcompat:appcompat-resources:1.7.0) to match attributes {artifactType=android-dex, asm-transformed-variant=NONE, dexing-enable-desugaring=true, dexing-enable-jacoco-instrumentation=false, dexing-is-debuggable=true, dexing-min-sdk=24, org.gradle.category=library, org.gradle.dependency.bundling=external, org.gradle.libraryelements=aar, org.gradle.status=release, org.gradle.usage=java-runtime}.

> Execution failed for DexingNoClasspathTransform: C:\Users\abc14\.gradle\caches\transforms-3\c494794d48d9429ce3837ff3d9162578\transformed\appcompat-resources-1.7.0-runtime.jar.

> Error while dexing.

> Failed to transform appcompat-1.7.0.aar (androidx.appcompat:appcompat:1.7.0) to match attributes {artifactType=android-dex, asm-transformed-variant=NONE, dexing-enable-desugaring=true, dexing-enable-jacoco-instrumentation=false, dexing-is-debuggable=true, dexing-min-sdk=24, org.gradle.category=library, org.gradle.dependency.bundling=external, org.gradle.libraryelements=aar, org.gradle.status=release, org.gradle.usage=java-runtime}.

> Execution failed for DexingNoClasspathTransform: C:\Users\abc14\.gradle\caches\transforms-3\d251d80cfc588f74172158875c7b2196\transformed\appcompat-1.7.0-runtime.jar.

> Error while dexing.

* Try:

> Run with --info or --debug option to get more log output.

> Run with --scan to get full insights.

* Exception is:

org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:mergeExtDexDebug'.

Caused by: java.lang.NullPointerException: Cannot invoke "String.length()" because "<parameter1>" is null

Caused by: java.util.concurrent.ExecutionException: com.android.tools.r8.utils.P0: java.lang.NullPointerException: Cannot invoke "String.length()" because "<parameter1>" is null

Caused by: [CIRCULAR REFERENCE: java.lang.NullPointerException: Cannot invoke "String.length()" because "<parameter1>" is null]

Cause 2: org.gradle.api.internal.artifacts.transform.TransformException: Failed to transform appcompat-1.7.0.aar (androidx.appcompat:appcompat:1.7.0) to match attributes {artifactType=android-dex, asm-transformed-variant=NONE, dexing-enable-desugaring=true, dexing-enable-jacoco-instrumentation=false, dexing-is-debuggable=true, dexing-min-sdk=24, org.gradle.category=library, org.gradle.dependency.bundling=external, org.gradle.libraryelements=aar, org.gradle.status=release, org.gradle.usage=java-runtime}.

Caused by: org.gradle.api.internal.artifacts.transform.TransformException: Execution failed for DexingNoClasspathTransform: C:\Users\abc14\.gradle\caches\transforms-3\d251d80cfc588f74172158875c7b2196\transformed\appcompat-1.7.0-runtime.jar.

Caused by: com.android.builder.dexing.DexArchiveBuilderException: Error while dexing.

at com.android.builder.dexing.D8DexArchiveBuilder.getExceptionToRethrow(D8DexArchiveBuilder.java:189)

Caused by: com.android.tools.r8.CompilationFailedException: Compilation failed to complete, origin: C:\Users\abc14\.gradle\caches\transforms-3\d251d80cfc588f74172158875c7b2196\transformed\appcompat-1.7.0-runtime.jar:androidx/appcompat/app/ActionBarDrawerToggle$1.class

Caused by: java.lang.NullPointerException: Cannot invoke "String.length()" because "<parameter1>" is null

Suppressed: java.lang.RuntimeException: java.util.concurrent.ExecutionException: com.android.tools.r8.utils.P0: java.lang.NullPointerException: Cannot invoke "String.length()" because "<parameter1>" is null

Caused by: java.util.concurrent.ExecutionException: com.android.tools.r8.utils.P0: java.lang.NullPointerException: Cannot invoke "String.length()" because "<parameter1>" is null

Caused by: com.android.tools.r8.utils.P0: java.lang.NullPointerException: Cannot invoke "String.length()" because "<parameter1>" is null

Caused by: [CIRCULAR REFERENCE: java.lang.NullPointerException: Cannot invoke "String.length()" because "<parameter1>" is null]