안드로이드 NullPointerException 에러 해결 도와주세요 ㅠㅠ

Question

앱 개발을 처음 해보는데, 회사에서 갑작스레 앱 유지보수를 해보라 그러셔서 하고 있는데요.SDK 버전 업데이트를 해야한다고 그래서 sdk 버전 올리면서 gradle 버전도 업데이트 하라 그래서 하라는대로 다 했는데 에러가 빵빵 터지길래 구글링 겁나 해가며 겨우겨우 빌드를 성공시켰습니다.에뮬레이터도 실행했는데 잘 됐거든요.근데 구글에 비공개테스트로 aab 파일만 올리면 아래처럼 에러가 뜹니다.Exception java.lang.RuntimeException: Unable to start activity ComponentInfo{appname/appname.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void k5.g.q(java.lang.String, k5.e, k5.j, k5.h)' on a null object reference at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:3635) at android.app.ActivityThread.handleLaunchActivity (ActivityThread.java:3792) at android.app.servertransaction.LaunchActivityItem.execute (LaunchActivityItem.java:103) at android.app.servertransaction.TransactionExecutor.executeCallbacks (TransactionExecutor.java:135) at android.app.servertransaction.TransactionExecutor.execute (TransactionExecutor.java:95) at android.app.ActivityThread$H.handleMessage (ActivityThread.java:2210) at android.os.Handler.dispatchMessage (Handler.java:106) at android.os.Looper.loopOnce (Looper.java:201) at android.os.Looper.loop (Looper.java:288) at android.app.ActivityThread.main (ActivityThread.java:7839) at java.lang.reflect.Method.invoke at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:548) at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1003) Caused by java.lang.NullPointerException: Attempt to invoke virtual method 'void k5.g.q(java.lang.String, k5.e, k5.j, k5.h)' on a null object reference at org.apache.cordova.PluginManager.getPlugin (PluginManager.java) at org.apache.cordova.PluginManager.startupPlugins (PluginManager.java) at org.apache.cordova.PluginManager.init (PluginManager.java) at com.getcapacitor.cordova.MockCordovaWebViewImpl.init (MockCordovaWebViewImpl.java) at com.getcapacitor.BridgeActivity.load (BridgeActivity.java) at com.getcapacitor.BridgeActivity.init (BridgeActivity.java) at com.getcapacitor.BridgeActivity.init (BridgeActivity.java) at myapp.MainActivity.onCreate at android.app.Activity.performCreate (Activity.java:8050) at android.app.Activity.performCreate (Activity.java:8030) at android.app.Instrumentation.callActivityOnCreate (Instrumentation.java:1329) at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:3608)아직 소스를 수정하기에는 아무것도 모르는 상태라 너무 막막한데.. 이걸 어찌해야 할까요?아래는 에러에 명시된 코드들입니다.MainActivity.jajvapackage appname; import android.os.Bundle; import com.getcapacitor.BridgeActivity; import com.getcapacitor.Plugin; import java.util.ArrayList; public class MainActivity extends BridgeActivity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Initializes the Bridge this.init(savedInstanceState, new ArrayList>() {{ // Additional plugins you've installed go here // Ex: add(TotallyAwesomePlugin.class); }}); } }BridgeActivity.javapackage com.getcapacitor; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.webkit.WebView; import androidx.annotation.NonNull; import androidx.appcompat.app.AppCompatActivity; import com.getcapacitor.android.R; import com.getcapacitor.cordova.MockCordovaInterfaceImpl; import com.getcapacitor.cordova.MockCordovaWebViewImpl; import com.getcapacitor.plugin.App; import org.apache.cordova.ConfigXmlParser; import org.apache.cordova.CordovaPreferences; import org.apache.cordova.PluginEntry; import org.apache.cordova.PluginManager; import org.json.JSONObject; import java.util.ArrayList; import java.util.List; public class BridgeActivity extends AppCompatActivity { protected Bridge bridge; private WebView webView; protected MockCordovaInterfaceImpl cordovaInterface; protected boolean keepRunning = true; private ArrayList pluginEntries; private PluginManager pluginManager; private CordovaPreferences preferences; private MockCordovaWebViewImpl mockWebView; private JSONObject config; private int activityDepth = 0; private String lastActivityPlugin; private List> initialPlugins = new ArrayList<>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); } protected void init(Bundle savedInstanceState, List> plugins) { this.init(savedInstanceState, plugins, null); } protected void init(Bundle savedInstanceState, List> plugins, JSONObject config) { this.initialPlugins = plugins; this.config = config; loadConfig(this.getApplicationContext(),this); getApplication().setTheme(getResources().getIdentifier("AppTheme_NoActionBar", "style", getPackageName())); setTheme(getResources().getIdentifier("AppTheme_NoActionBar", "style", getPackageName())); setTheme(R.style.AppTheme_NoActionBar); setContentView(R.layout.bridge_layout_main); this.load(savedInstanceState); } /** * Load the WebView and create the Bridge */ protected void load(Bundle savedInstanceState) { Logger.debug("Starting BridgeActivity"); webView = findViewById(R.id.webview); cordovaInterface = new MockCordovaInterfaceImpl(this); if (savedInstanceState != null) { cordovaInterface.restoreInstanceState(savedInstanceState); } mockWebView = new MockCordovaWebViewImpl(this.getApplicationContext()); mockWebView.init(cordovaInterface, pluginEntries, preferences, webView); pluginManager = mockWebView.getPluginManager(); cordovaInterface.onCordovaInit(pluginManager); bridge = new Bridge(this, webView, initialPlugins, cordovaInterface, pluginManager, preferences, this.config); if (savedInstanceState != null) { bridge.restoreInstanceState(savedInstanceState); } this.keepRunning = preferences.getBoolean("KeepRunning", true); this.onNewIntent(getIntent()); } public Bridge getBridge() { return this.bridge; } /** * Notify the App plugin that the current state changed * @param isActive */ private void fireAppStateChanged(boolean isActive) { PluginHandle handle = bridge.getPlugin("App"); if (handle == null) { return; } App appState = (App) handle.getInstance(); if (appState != null) { appState.fireChange(isActive); } } @Override public void onSaveInstanceState(@NonNull Bundle outState) { super.onSaveInstanceState(outState); bridge.saveInstanceState(outState); } @Override public void onStart() { super.onStart(); activityDepth++; this.bridge.onStart(); mockWebView.handleStart(); Logger.debug("App started"); } @Override public void onRestart() { super.onRestart(); this.bridge.onRestart(); Logger.debug("App restarted"); } @Override public void onResume() { super.onResume(); fireAppStateChanged(true); this.bridge.onResume(); mockWebView.handleResume(this.keepRunning); Logger.debug("App resumed"); } @Override public void onPause() { super.onPause(); this.bridge.onPause(); if (this.mockWebView != null) { boolean keepRunning = this.keepRunning || this.cordovaInterface.getActivityResultCallback() != null; this.mockWebView.handlePause(keepRunning); } Logger.debug("App paused"); } @Override public void onStop() { super.onStop(); activityDepth = Math.max(0, activityDepth - 1); if (activityDepth == 0) { fireAppStateChanged(false); } this.bridge.onStop(); if (mockWebView != null) { mockWebView.handleStop(); } Logger.debug("App stopped"); } @Override public void onDestroy() { super.onDestroy(); this.bridge.onDestroy(); if (this.mockWebView != null) { mockWebView.handleDestroy(); } Logger.debug("App destroyed"); } @Override public void onDetachedFromWindow() { super.onDetachedFromWindow(); if (webView != null) { webView.removeAllViews(); webView.destroy(); } } @Override public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) { super.onRequestPermissionsResult(requestCode, permissions, grantResults); if (this.bridge == null) { return; } this.bridge.onRequestPermissionsResult(requestCode, permissions, grantResults); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (this.bridge == null) { return; } this.bridge.onActivityResult(requestCode, resultCode, data); } @Override protected void onNewIntent(Intent intent) { super.onNewIntent(intent); if (this.bridge == null || intent == null) { return; } this.bridge.onNewIntent(intent); mockWebView.onNewIntent(intent); } @Override public void onBackPressed() { super.onBackPressed(); if (this.bridge == null) { return; } this.bridge.onBackPressed(); } public void loadConfig(Context context, AppCompatActivity activity) { ConfigXmlParser parser = new ConfigXmlParser(); parser.parse(context); preferences = parser.getPreferences(); preferences.setPreferencesBundle(activity.getIntent().getExtras()); pluginEntries = parser.getPluginEntries(); } }현재 에러가 발생하는 구간인 것 같습니다. 한 번만 도와주세요~ ㅠㅠ

캐티 · Answer

무언가 잘못 한 것 같아요.플러그인이 누락되었군요.?plugin 으로 들어오는 변수는 null이지만 null체크를 하지 않았고 아 .. 물론 반드시 넣어주는 플러그인이면 널 체크를 안 해요!그런데 빌드 과정에 플러그인을 첨부하지 않았는데 안드로이드 패키지에 라이브러리나 에셋 등 .. 규격이 요구하는 기준에 따라 데이터를 내장 해야 해요.플러그인이 라이브러리 앱 일 수도 있고 서비스 앱 일 수도 있고 상호 작용 하는 앱일 수도 있고 ..이렇게 되면 잘 도울 수 없어요.

냥냥가면 · Answer

에러 메세지에 k5.g.q 라는 메소드는 어디에 정의가 되어 있는 건가요?라이브러리 인가??아무튼 메소드 호출할때 매개변수에 null 이 들어가서 그런 거니까 null 체크부터 해보세요!

OkkyActivity · Answer

cordova 앱 인가봐요 정확히는 안드로이드 네이티브가 아니어서 제가 답변 드리기가 애매한데보통 debug 모드에선 잘 되고, release 로 마켓배포할 때 안되거나 터진다면 일단 proguard 등 난독화 규칙 관련해서 한번 점검해보시길 바래여 ~

안드로이드 NullPointerException 에러 해결 도와주세요 ㅠㅠ

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