butterknife: Android studio 3.0 butterknife error

Android studio version: Android studio 3.0 preview gradle plugin:

        classpath 'com.android.tools.build:gradle:3.0.0-alpha1'
        classpath 'com.jakewharton:butterknife-gradle-plugin:8.6.0'

expection:

Error:Unable to find method 'com.android.build.gradle.api.BaseVariant.getOutputs()Ljava/util/List;'.
Possible causes for this unexpected error include:<ul><li>Gradle's dependency cache may be corrupt (this sometimes occurs after a network connection timeout.)
<a href="syncProject">Re-download dependencies and sync project (requires network)</a></li><li>The state of a Gradle build process (daemon) may be corrupt. Stopping all Gradle daemons may solve this problem.
<a href="stopGradleDaemons">Stop Gradle build processes (requires restart)</a></li><li>Your project may be using a third-party plugin which is not compatible with the other plugins in the project or the version of Gradle requested by the project.</li></ul>In the case of corrupt Gradle processes, you can also try closing the IDE and then killing all Java processes.

I commented out the plugin(classpath ‘com.jakewharton:butterknife-gradle-plugin:8.6.0’), then sync through

About this issue

  • Original URL
  • State: closed
  • Created 7 years ago
  • Reactions: 101
  • Comments: 62 (9 by maintainers)

Most upvoted comments

remove apply plugin: ‘com.jakewharton.butterknife’ may be worked

+54
AndSync on Oct 26, 2017

I have found a workaround : Using the 8.4.0 version ( classpath ‘com.jakewharton:butterknife-gradle-plugin:8.4.0’ )

But it doesn’t resolve the compatibility issue with “Feature Module” : Error:Butterknife plugin can only be applied to android projects

+39
LucasFoulonMongai on May 30, 2017

I remove apply plugin: ‘com.jakewharton.butterknife’ can works

+15
SaudM on Oct 27, 2017

Just remove classpath 'me.tatarka:gradle-retrolambda:3.7.0' and downgrade butterknife version to 8.4.0 classpath 'com.jakewharton:butterknife-gradle-plugin:8.4.0' if you don’t want to downgrade, then.

compile 'com.jakewharton:butterknife:8.8.1'

annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'

Don’t forget to remove

apply plugin: 'me.tatarka.retrolambda' from app level build gradle.

+14
Aks-4125 on Dec 6, 2017

I’m using the following, with the following error: root build.gradle:

dependencies {
    classpath 'com.jakewharton:butterknife-gradle-plugin:8.6.0'
    ...
}

lib/build.gradle:

apply plugin: 'com.jakewharton.butterknife'
...
def butterknife = "8.6.0"
implementation "com.jakewharton:butterknife:${butterknife}" //woo new Gradle API!
annotationProcessor "com.jakewharton:butterknife-compiler:${butterknife}"

Stacktrace from gradlew:

Caused by: java.lang.NoSuchMethodError: com.android.build.gradle.api.BaseVariant.getOutputs()Ljava/util/List;
        at butterknife.plugin.ButterKnifePlugin$applyPlugin$1.execute(ButterKnifePlugin.kt:27)
        at butterknife.plugin.ButterKnifePlugin$applyPlugin$1.execute(ButterKnifePlugin.kt:15)
        ...

It looks like ButterKnifePlugin.kt #27 is the offending line - it calls variant.outputs.forEach, but the new Android Gradle 3.0 plugin requires variants.outputs.all (source)

I’m not really a Gradle expert - is that really the extent of the change that’s necessary?

+10
JvmName on May 22, 2017

Some additional info from our post-mortem after solving this bug, in case it may contain useful info to help someone else solve it as well:

Problem encountered when upgrading from Android Studio 2.3.2 to Android Studio 3.0.1:

TL;DR: Don’t upgrade to Android Studio 3.0, unless also add this to your app/build.gradle file:

android {
    defaultConfig {
        javaCompileOptions {
            annotationProcessorOptions {
                includeCompileClasspath true // NB! see doc below
            }
        }
    }

Alternatively, you could instead upgrade the ButterKnife library, but for us that entailed a lot of refactor renaming, and an unknown amount of extra upgrade work, so it was not desirable at this time.

Problem:

  • App crashes on Android mobiles on startup. Line 577 in our TimeLineUI.java gives a NullPointerException, because: Line 101 in our TimeLineUI.java uses @InjectView to instantiate dashboardBackground, but it is suddenly null at the time it is called.

NB: We didn’t make any changes to the codebase. Only the automatic changes Android Studio made to the build.gradle when building in the new Android Studio version.

The stacktrace for the NullPointerException we got, similar to @ZQiang94 :

E/AndroidRuntime: FATAL EXCEPTION: main
                  Process: projectname.staging, PID: 6570
                  java.lang.RuntimeException: Unable to start activity ComponentInfo{projectname.staging/projectname.ui.TimeLineUI}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.RelativeLayout.setVisibility(int)' on a null object reference
                      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2924)
                      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2985)
                      at android.app.ActivityThread.-wrap14(ActivityThread.java)
                      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1635)
                      at android.os.Handler.dispatchMessage(Handler.java:102)
                      at android.os.Looper.loop(Looper.java:154)
                      at android.app.ActivityThread.main(ActivityThread.java:6692)
                      at java.lang.reflect.Method.invoke(Native Method)
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1468)
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1358)
                   Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.RelativeLayout.setVisibility(int)' on a null object reference
                      at projectname.ui.TimeLineUI.toggleSplashScreen(TimeLineUI.java:577)
                      at projectname.ui.TimeLineUI.initSplashscreen(TimeLineUI.java:553)
                      at projectname.ui.TimeLineUI.onCreate(TimeLineUI.java:178)

Cause and explanation:

The @InjectView annotations in the source code is used by the ButterKnife library to instantiate objects.

If the instantiation isn’t done properly then the app crashes on startup, on line 577.

ButterKnife used to instantiate these properly in Android Studio 2.3.2 (where the build would succeed).

We installed Android Studio 3.0 first, and tried to build. It made some changes to build.gradle:

build.gradle (Project: projectname) build script dependencies was upgraded:

-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'

Android Studio 3.0 needs annotation processors specifically defined, for annotations to work correctly: https://developer.android.com/studio/build/gradle-plugin-3-0-0-migration.html?utm_source=android-studio#annotationProcessor_config

If we try to fix it by simply adding this dependency in the app/build.gradle, to match the butterknife version we use: annotationProcessor 'com.jakewharton:butterknife-compiler:5.5.1' Then we run into the issue that butterknife-compiler 5.5.1 JAR file doesn’t exist (probably the same problem @configurer encountered), because ButterKnife didn’t include butterknife-compiler until ButterKnife version 8.2.0.

We could upgrade to ButterKnife 8.2.0 or later. But ButterKnife uses @BindView in the latest version, instead of @InjectView. So if we upgrade ButterKnife to 8.2.0 or later, then we have to rename all the instances of @InjectView to @BindView in 100+ places in 17+ files, and potentially have to make other changes too. The rename refactoring was attempted, but the upgrade entails we have to change other things in the codebase too. We are uncertain of the is uncertain of the size of the scope, and deems that it could take a while. So it is not worth it, at this time.

So the initial conclusion is that we:

Solution:

Was actually able to use Android Studio 3.0 with this small change to the app/build.gradle file (to make it work like in Android Studio 2.3.2):

android {
...
    defaultConfig {
...
        javaCompileOptions {
            annotationProcessorOptions {
                // TODO:
                // includeCompileClasspath should be set to false in future versions, since this option is deprecated and will be removed.
                // This is to increase speed of compilation: https://developer.android.com/studio/build/gradle-plugin-3-0-0-migration.html?utm_source=android-studio#annotationProcessor_config
                // But when it's set to false be wary of any NullPointerException errors it may cause because of ButterKnife's @InjectView.
                includeCompileClasspath true
            }
        }
    }
+9
redbar0n on Feb 19, 2018

Did anyone find a workaround to this yet?

+8
preraktrivedi on May 24, 2017

Use 8.x

On Sat, May 20, 2017, 11:49 PM mtdhllf notifications@github.com wrote:

Error:FAILURE: Build failed with an exception.

  • What went wrong: Execution failed for task ‘:app:javaPreCompileDebug’.

Annotation processors must now be declared explicitly. The following dependencies in the compile classpath are found to contain annotation processors. Please add them to the annotationProcessor configuration.

  • butterknife-7.0.1.jar Alternatively, set android.defaultConfig.javaCompileOptions.annotationProcessorOptions.includeCompileClasspath = true to continue with the previous behavior. Note that this option is deprecated and will be removed in the future. See https://developer.android.com/r/tools/annotation-processor-error-message.html for more details.

    • Try: Run with --stacktrace option to get the stack trace. Run with --debug option to get more log output.

— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub https://github.com/JakeWharton/butterknife/issues/963#issuecomment-302913304, or mute the thread https://github.com/notifications/unsubscribe-auth/AAEEEd52OPeuqkWLTIBvabtMUfZGcroaks5r77RDgaJpZM4Nf9DI .

+8
JakeWharton on May 21, 2017

having these in my library’s build.gradle seemed to work


buildscript {
    repositories {
        maven { url "https://oss.sonatype.org/content/repositories/snapshots" }
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.jakewharton:butterknife-gradle-plugin:9.0.0-SNAPSHOT'
    }
}

repositories {
    maven { url "https://oss.sonatype.org/content/repositories/snapshots" }
}


dependencies {
    compile 'com.jakewharton:butterknife:9.0.0-SNAPSHOT'
    kapt 'com.jakewharton:butterknife-compiler:9.0.0-SNAPSHOT'
}

thanks Jake

+7
kassim on Nov 7, 2017

Error:FAILURE: Build failed with an exception.

  • What went wrong: Execution failed for task ‘:app:javaPreCompileDebug’.

Annotation processors must now be declared explicitly. The following dependencies in the compile classpath are found to contain annotation processors. Please add them to the annotationProcessor configuration. - butterknife-7.0.1.jar Alternatively, set android.defaultConfig.javaCompileOptions.annotationProcessorOptions.includeCompileClasspath = true to continue with the previous behavior. Note that this option is deprecated and will be removed in the future. See https://developer.android.com/r/tools/annotation-processor-error-message.html for more details.

  • Try: Run with --stacktrace option to get the stack trace. Run with --debug option to get more log output.
+7
mtdhllf on May 21, 2017

@AndSync @SaudM remove apply plugin: ‘com.jakewharton.butterknife’ may be worked，but there will be NullPointerException. eg. 22f63eb9-7536-47f6-b824-29ef9be82f10

+6
ZQiang94 on Dec 26, 2017

Butterknife is not working with Feature Module to support Instant Apps. Below are my studio and gradle settings along with compiler error

gradle plugin: classpath ‘com.android.tools.build:gradle:3.0.0-alpha8’

project settings: implementation ‘com.jakewharton:butterknife:8.7.0’ annotationProcessor ‘com.jakewharton:butterknife-compiler:8.7.0’

Studio settings: Android Studio 3.0 Canary 8

error: element value must be a constant expression

Please let me know whether butterknife is supported for instant apps and if yes what changes to be done to make it work.

+5
nithya-k on Aug 4, 2017

Resolved by adding dependencies compile ‘com.jakewharton:butterknife:8.8.1’ annotationProcessor ‘com.jakewharton:butterknife-compiler:8.8.1’

Thank you.

+4
JImmyBhavsar on Nov 14, 2017 
implementation 'com.jakewharton:butterknife:8.8.1'
annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'

a workaround, tested.

+4
Hemen07 on Oct 30, 2017

you can use gradle 2.3.3.My project can’t work if I use gradle 3.0.0.But it works when I use gradle 2.3.3.

+3
Times125 on Dec 13, 2017

It’s deprecated in the stable release.

On Fri, Aug 25, 2017 at 3:40 PM Prerak Trivedi notifications@github.com wrote:

Cool, will do so, but would probably be good to deprecate it first 😃

— You are receiving this because you were mentioned.

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+3
JakeWharton on Aug 25, 2017

Moving the butterknife plugin locally into our projects buildSrc is working for me as a workaround

+3
denizmveli on Jun 16, 2017

Add maven { url ‘https://maven.google.com’ }

Then you’ll got an update for alpha2.

+3
Paget96 on May 27, 2017

I found this solution Change: compile ‘com.jakewharton:butterknife:8.+.+’ into annotationProcessor ‘com.jakewharton:butterknife:8.+.+’ it worked for me

+2
bqhub30 on Aug 17, 2018

don`t update gradle version , you can still use gradle 2.3.3

+2
xiaomanwong on Oct 26, 2017

Use 9.0.0-SNAPSHOT

On Thu, Aug 17, 2017 at 8:35 PM JokAr notifications@github.com wrote:

I have same problem in android studio 3.0 beta2 with butterknife 8.8.1

Error:A problem occurred configuring project ‘:app’.

Failed to notify project evaluation listener. com.android.build.gradle.api.BaseVariant.getOutputs()Ljava/util/List;

— You are receiving this because you modified the open/close state.

Reply to this email directly, view it on GitHub https://github.com/JakeWharton/butterknife/issues/963#issuecomment-323250820, or mute the thread https://github.com/notifications/unsubscribe-auth/AAEEEfTB30g37HznzWpjWg-V5mlB4PLUks5sZQaegaJpZM4Nf9DI .

+2
JakeWharton on Aug 18, 2017

Error: Annotation processors must now be declared explicitly. The following dependencies in the compile classpath are found to contain annotation processors. Please add them to the annotationProcessor configuration.

I found this solution:

android {
        ...
        defaultConfig {
            ...
            //config
            javaCompileOptions { annotationProcessorOptions { includeCompileClasspath = true } }
    }
    ...
}
+1
gallonyin on Nov 12, 2018 
pry(main)> "annotationProcessor 'com.jakewharton:butterknife:8.+.+'" == "annotationProcessor 'com.jakewharton:butterknife:8.+.+'"
=> true

🤔

+1
jhass on Aug 16, 2018

yes i’m using Android studio 3.1 Canary 6. It can’t find the butter knife jar though gradle.

+1
configurer on Jan 3, 2018

Android Studio 3.0.1 is out and still not supporting com.android.tools.build:gradle:3.0.1 doesn’t seem to work. wrapper can be 4.1 but the gradle version MUST be 2.3.3 in order to work

Are we getting update anytime soon?

+1
MrSinaRJ on Nov 22, 2017

Documentation should be updated since AS 3.0 has been around for awhile already. Followed the documentation and nothing seemed to work. I followed every comment here and luckily got it to compile.

+1
lawgimenez on Nov 21, 2017
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