not able to build android project with butterknife dependency

  android, build, butterknife, gradle, java

I am not able to build android project due to error of butterknife dependency.


Execution failed for task ‘:app:javaPreCompileDebug’.

Could not resolve all files for configuration ‘:app:debugAnnotationProcessorClasspath’.
Failed to transform butterknife-compiler-8.6.0.jar (com.jakewharton:butterknife-compiler:8.6.0) to match attributes
{artifactType=processed-jar, org.gradle.category=library,
org.gradle.libraryelements=jar, org.gradle.status=release,
> Execution failed for JetifyTransform: /Users/jordan/.gradle/caches/modules-2/files-2.1/com.jakewharton/butterknife-compiler/8.6.0/d3defb48a63aa0591117d0cec09f47a13fffda19/butterknife-compiler-8.6.0.jar.
> Failed to transform ‘/Users/jordan/.gradle/caches/modules-2/files-2.1/com.jakewharton/butterknife-compiler/8.6.0/d3defb48a63aa0591117d0cec09f47a13fffda19/butterknife-compiler-8.6.0.jar’
using Jetifier. Reason: AmbiguousStringJetifierException, message: The
given artifact contains a string literal with a package reference
‘’ that cannot be safely rewritten.
Libraries using reflection such as annotation processors need to be
updated manually to add support for androidx.. (Run with –stacktrace
for more details.)
This is a known exception, and Jetifier won’t be able to jetify this library.
– If you believe this library doesn’t need to be jetified (e.g., if it already supports AndroidX, or if it doesn’t use support
libraries/AndroidX at all), add android.jetifier.blacklist =
{comma-separated list of regular expressions (or simply names) of the
libraries that you don’t want to be jetified} to the
– If you believe this library needs to be jetified (e.g., if it uses old support libraries and breaks your app if it isn’t
jetified), contact the library’s authors to update this library to
support AndroidX and use the supported version once it is released.
If you need further help, please leave a comment at

Dependency in Gradle Build File in App Level

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'androidx.appcompat:appcompat:1.2.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
    implementation 'androidx.cardview:cardview:1.0.0'
    implementation 'androidx.recyclerview:recyclerview:1.2.0-beta02'
    implementation 'com.melnykov:floatingactionbutton:1.3.0'
  //  implementation ''
 //   implementation ''
    implementation 'com.jpardogo.materialtabstrip:library:1.0.6'
    implementation 'com.jakewharton:butterknife:8.6.0'
    annotationProcessor 'com.jakewharton:butterknife-compiler:8.6.0'


how should I resolve it ?

Source: Android Questions