Why my app everytime crashing, errors not found, code font big?

Question

This is the problem: I'm writing an application, there was a need to add a navigation drawer. Found a third-party support library. Wrote the code, no errors, but after installation the application crashes. Help! I've tried different libraries, but it's not working. If necessary, I'll provide other files.

MainActivity

package... 

import... 

public class MainActivity extends DrawerActivity
{




    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Log.e("idi", "nahui");
        addProfile(
            new DrawerProfile()
            .setRoundedAvatar((BitmapDrawable)getResources().getDrawable(R.drawable.ic_app_icon))
            .setBackground(getResources().getDrawable(R.drawable.snackbar_background))
            .setName(getString(R.string.abc_action_bar_home_description))
            .setDescription("HTML, CSS, JAVASCRIPT")
            .setOnProfileClickListener(new DrawerProfile.OnProfileClickListener() {
                    @Override
                    public void onClick(DrawerProfile drawerProfile, long id)
                    {
                        Toast.makeText(MainActivity.this, "Clicked profile #" + id, Toast.LENGTH_SHORT).show();
                    }
                })
        );
        addItem(
            new DrawerItem()
            .setImage(getResources().getDrawable(android.R.drawable.btn_radio))
            .setTextPrimary("First")

            .setOnItemClickListener(new DrawerItem.OnItemClickListener() {
                    @Override
                    public void onClick(DrawerItem drawerItem, long id, int position) {
                        Toast.makeText(MainActivity.this, "Clicked first item #" + id, Toast.LENGTH_SHORT).show();
                    }
                })
        );
        addDivider();
        addItem(
            new DrawerItem()
            .setImage(getResources().getDrawable(android.R.drawable.btn_star))
            .setTextPrimary("Second")
            .setOnItemClickListener(new DrawerItem.OnItemClickListener() {
                    @Override
                    public void onClick(DrawerItem drawerItem, long id, int position) {
                        Toast.makeText(MainActivity.this, "Clicked second item #" + id, Toast.LENGTH_SHORT).show();
                    }
                })
        );
    }

}

build.gradle (app)

apply plugin: ... 

android {
    compileSdkVersion 21
    buildToolsVersion "21.1.0"

    defaultConfig {
        applicationId ...
        minSdkVersion 14
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile "com.android.support:support-v4:23.2.+"
    compile "com.android.support:appcompat-v7:27.1.1"
    compile 'com.android.support:design:22.+.+'
    compile 'com.heinrichreimersoftware:material-drawer:2.3.3'
}

LogCat

11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               FATAL EXCEPTION: main
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               Process: net.aaaps.webdesignlearning, PID: 19062
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               java.lang.RuntimeException: Unable to start activity ComponentInfo{net.aaaps.webdesignlearning/net.aaaps.webdesignlearning.MainActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2969)
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3047)
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               at android.app.ActivityThread.-wrap11(Unknown Source:0)
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1777)
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               at android.os.Handler.dispatchMessage(Handler.java:106)
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               at android.os.Looper.loop(Looper.java:166)
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               at android.app.ActivityThread.main(ActivityThread.java:6861)
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               at java.lang.reflect.Method.invoke(Native Method)
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:450)
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               at android.support.v7.app.AppCompatDelegateImplBase.onCreate(AppCompatDelegateImplBase.java:113)
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               at android.support.v7.app.AppCompatDelegateImplV7.onCreate(AppCompatDelegateImplV7.java:146)
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               at android.support.v7.app.AppCompatActivity.onCreate(AppCompatActivity.java:59)
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               at net.aaaps.webdesignlearning.MainActivity.onCreate(MainActivity.java:20)
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               at android.app.Activity.performCreate(Activity.java:7110)
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               at android.app.Activity.performCreate(Activity.java:7101)
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1214)
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2922)
11-08 01:27:33.717 19062 19062 E   AndroidRuntime                               ... 9 more
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               FATAL EXCEPTION: main
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               Process: net.aaaps.webdesignlearning, PID: 19421
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               java.lang.RuntimeException: Unable to start activity ComponentInfo{net.aaaps.webdesignlearning/net.aaaps.webdesignlearning.MainActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2969)
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3047)
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               at android.app.ActivityThread.-wrap11(Unknown Source:0)
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1777)
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               at android.os.Handler.dispatchMessage(Handler.java:106)
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               at android.os.Looper.loop(Looper.java:166)
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               at android.app.ActivityThread.main(ActivityThread.java:6861)
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               at java.lang.reflect.Method.invoke(Native Method)
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:450)
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               at android.support.v7.app.AppCompatDelegateImplBase.onCreate(AppCompatDelegateImplBase.java:113)
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               at android.support.v7.app.AppCompatDelegateImplV7.onCreate(AppCompatDelegateImplV7.java:146)
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               at android.support.v7.app.AppCompatActivity.onCreate(AppCompatActivity.java:59)
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               at net.aaaps.webdesignlearning.MainActivity.onCreate(MainActivity.java:18)
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               at android.app.Activity.performCreate(Activity.java:7110)
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               at android.app.Activity.performCreate(Activity.java:7101)
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1214)
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2922)
11-08 01:28:28.301 19421 19421 E   AndroidRuntime                               ... 9 more
11-08 01:29:01.300 19991 19991 E   AndroidRuntime                               FATAL EXCEPTION: main
11-08 01:29:01.300 19991 19991 E   AndroidRuntime                               Process: net.aaaps.webdesignlearning, PID: 19991
11-08 01:29:01.300 19991 19991 E   AndroidRuntime                               java.lang.RuntimeException: Unable to start activity ComponentInfo{net.aaaps.webdesignlearning/net.aaaps.webdesignlearning.MainActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
11-08 01:29:01.300 19991 19991 E   AndroidRuntime                               at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2969)
11-08 01:29:01.300 19991 19991 E   AndroidRuntime                               at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3047)
11-08 01:29:01.300 19991 19991 E   AndroidRuntime                               at android.app.ActivityThread.-wrap11(Unknown Source:0)

This is the biggest clue 'You need to use a Theme.AppCompat theme (or descendant) with this activity.' - This bug involves support for older code/phones. What does your 'DrawerActivity' extend? — C. Skjerdal, Nov 07 '19 at 22:03
Does this answer your question? [You need to use a Theme.AppCompat theme (or descendant) with this activity](https://stackoverflow.com/questions/21814825/you-need-to-use-a-theme-appcompat-theme-or-descendant-with-this-activity) — a_local_nobody, Nov 08 '19 at 05:16
I wrote this theme in the manifest, the error does not go away. — New developer, Nov 08 '19 at 18:14

score 0 · Answer 1 · answered Nov 07 '19 at 23:17

This is the line in your crash log that point you to the problem:

You need to use a Theme.AppCompat theme (or descendant) with this activity.

You need to set your activity to use Theme.AppCompat in your manifest file.

    <activity android:name=".MainActivity"
        android:theme="@style/Theme.AppCompat">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

Why the negative review? – Ian Medeiros Nov 08 '19 at 10:06 — Ian Medeiros, Nov 08 '19 at 10:06

Why my app everytime crashing, errors not found, code font big?

1 Answers1