Error:(38, 21) The method bind(LoginActivity) is undefined for the type ButterKnife

[FantasyLand17]

I am using Butterknife for the first time and I am not sure what I am doing wrong. I am getting the following error:

Error:(38, 21) The method bind(LoginActivity) is undefined for the type ButterKnife

Error:(36, 21) The method bind(SignupActivity) is undefined for the type ButterKnife

Error:Execution failed for task ':app:transformJackWithJackForDebug'.
> com.android.build.api.transform.TransformException: com.android.builder.core.JackToolchain$ToolchainException: Jack compilation exception

This is what my activities look like:

import com.myapp.R;

import butterknife.BindView;
import butterknife.ButterKnife;

public class LoginActivity extends Activity {
    private static final String TAG = "LoginActivity";
    private static final int REQUEST_SIGNUP = 0;

    @BindView(R.id.input_email) EditText _emailText;
    @BindView(R.id.input_password) EditText _passwordText;
    @BindView(R.id.btn_login) Button _loginButton;
    @BindView(R.id.link_signup) TextView _signupLink;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.login_main);
        ButterKnife.bind(this);
...

And

import com.myapp.R;
import butterknife.ButterKnife;
import butterknife.BindView;

public class SignupActivity extends Activity {
    private static final String TAG = "SignupActivity";

    @BindView(R.id.input_name) EditText _nameText;
    @BindView(R.id.input_email) EditText _emailText;
    @BindView(R.id.input_password) EditText _passwordText;
    @BindView(R.id.btn_signup) Button _signupButton;
    @BindView(R.id.link_login) TextView _loginLink;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.signup_main);
        ButterKnife.bind(this);
...

I have this in my gradle.properties:

org.gradle.jvmargs=-Xmx1536m

These are my dependencies for butterknife:

compile 'com.jakewharton:butterknife:8.6.0'
annotationProcessor 'com.jakewharton:butterknife-compiler:8.6.0'

Here's my gradle's main settings:

android {
    compileSdkVersion 25
    buildToolsVersion '25.0.3'
    aaptOptions.cruncherEnabled = false
    aaptOptions.useNewCruncher = false

    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
        jackOptions {
            enabled true
        }
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

[JakeWharton]

Does it work when Jack is disabled?

…

On Sun, Jun 25, 2017, 1:04 AM MojoJojo ***@***.***> wrote: I am using Butterknife for the first time and I am not sure what I am doing wrong. I am getting the following error: Error:(38, 21) The method bind(LoginActivity) is undefined for the type ButterKnife Error:(36, 21) The method bind(SignupActivity) is undefined for the type ButterKnife Error:Execution failed for task ':app:transformJackWithJackForDebug'. > com.android.build.api.transform.TransformException: com.android.builder.core.JackToolchain$ToolchainException: Jack compilation exception This is what my activities look like: import com.myapp.R; import butterknife.BindView; import butterknife.ButterKnife; public class LoginActivity extends Activity { private static final String TAG = "LoginActivity"; private static final int REQUEST_SIGNUP = 0; @BindView(R.id.input_email) EditText _emailText; @BindView(R.id.input_password) EditText _passwordText; @BindView(R.id.btn_login) Button _loginButton; @BindView(R.id.link_signup) TextView _signupLink; @OverRide public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.login_main); ButterKnife.bind(this); ... And import com.myapp.R; import butterknife.ButterKnife; import butterknife.BindView; public class SignupActivity extends Activity { private static final String TAG = "SignupActivity"; @BindView(R.id.input_name) EditText _nameText; @BindView(R.id.input_email) EditText _emailText; @BindView(R.id.input_password) EditText _passwordText; @BindView(R.id.btn_signup) Button _signupButton; @BindView(R.id.link_login) TextView _loginLink; @OverRide public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.signup_main); ButterKnife.bind(this); ... I have this in my gradle.properties: org.gradle.jvmargs=-Xmx1536m These are my dependencies for butterknife: compile 'com.jakewharton:butterknife:8.6.0' annotationProcessor 'com.jakewharton:butterknife-compiler:8.6.0' Here's my gradle's main settings: android { compileSdkVersion 25 buildToolsVersion '25.0.3' aaptOptions.cruncherEnabled = false aaptOptions.useNewCruncher = false defaultConfig { minSdkVersion 16 targetSdkVersion 25 versionCode 1 versionName "1.0" jackOptions { enabled true } } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } } — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#990>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAEEEcvEDaCunsMca_aCuiYDzjswpo6aks5sHfh8gaJpZM4OEhnb> .

[FantasyLand17]

Great suggestion! I just tried it and it did work. I am wondering if there's a workaround to keep jack on and still be able to use butterknife?

[JakeWharton]

Jack is deprecated so you should migrate away from it. We have no plans to support it moving forward.

…

On Sun, Jun 25, 2017, 5:05 PM MojoJojo ***@***.***> wrote: Great suggestion! I just tried it and it did work. I am wondering if there's a workaround to keep jack on and still be able to use butterknife? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#990 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAEEEfBI54MObOk6H3paWfFSwEv43Rceks5sHtnGgaJpZM4OEhnb> .

[FantasyLand17]

Thanks for letting me know, Jack. I wasn't aware of that. I'll definitely try to migrate away from it.