我是 Android 开发的新手，正在尝试创建签名的 APK，它以前工作正常，但几天后每当我尝试生成签名的 APK 时它都会显示错误消息，我已经搜索了很多次并检查了很多次问题，但找不到任何解决方案，下面是我在单击“生成签名 APK”时收到的错误消息
Magic number did not match
java.lang.IllegalStateException: Magic number did not match
at com.intellij.credentialStore.kdbx.KdbxSerializerKt.readKdbxHeader(KdbxSerializer.kt:146)
at com.intellij.credentialStore.kdbx.KdbxSerializer.createUnencryptedInputStream(KdbxSerializer.kt:61)
at com.intellij.credentialStore.kdbx.KdbxStreamFormat.load(kdbx.kt:55)
at com.intellij.credentialStore.kdbx.KdbxKt.loadKdbx(kdbx.kt:36)
at com.intellij.credentialStore.KeePassCredentialStore.<init>(KeePassCredentialStore.kt:82)
at com.intellij.credentialStore.KeePassCredentialStore.<init>(KeePassCredentialStore.kt:44)
at com.intellij.ide.passwordSafe.impl.PasswordSafeImplKt.computeProvider(PasswordSafeImpl.kt:38)
at com.intellij.ide.passwordSafe.impl.PasswordSafeImpl.<init>(PasswordSafeImpl.kt:46)
at com.intellij.ide.passwordSafe.impl.PasswordSafeImpl.<init>(PasswordSafeImpl.kt)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.picocontainer.defaults.InstantiatingComponentAdapter.newInstance(InstantiatingComponentAdapter.java:193)
at com.intellij.util.pico.CachingConstructorInjectionComponentAdapter.doGetComponentInstance(CachingConstructorInjectionComponentAdapter.java:103)
at com.intellij.util.pico.CachingConstructorInjectionComponentAdapter.instantiateGuarded(CachingConstructorInjectionComponentAdapter.java:80)
at com.intellij.util.pico.CachingConstructorInjectionComponentAdapter.getComponentInstance(CachingConstructorInjectionComponentAdapter.java:63)
at com.intellij.openapi.components.impl.ServiceManagerImpl$MyComponentAdapter.getComponentInstance(ServiceManagerImpl.java:228)
at com.intellij.util.pico.DefaultPicoContainer.getLocalInstance(DefaultPicoContainer.java:239)
at com.intellij.util.pico.DefaultPicoContainer.getComponentInstance(DefaultPicoContainer.java:206)
at com.intellij.openapi.components.ServiceManager.doGetService(ServiceManager.java:48)
at com.intellij.openapi.components.ServiceManager.getService(ServiceManager.java:38)
at com.intellij.ide.passwordSafe.PasswordSafe.getInstance(PasswordSafe.java:28)
at org.jetbrains.android.exportSignedPackage.KeystoreStep.<init>(KeystoreStep.java:71)
at org.jetbrains.android.exportSignedPackage.ExportSignedPackageWizard.<init>(ExportSignedPackageWizard.java:110)
at org.jetbrains.android.actions.GenerateSignedApkAction.actionPerformed(GenerateSignedApkAction.java:74)
at com.intellij.openapi.actionSystem.ex.ActionUtil$1.run(ActionUtil.java:215)
at com.intellij.openapi.actionSystem.ex.ActionUtil.performActionDumbAware(ActionUtil.java:232)
at com.intellij.openapi.actionSystem.impl.ActionMenuItem$ActionTransmitter.lambda$actionPerformed$0(ActionMenuItem.java:309)
at com.intellij.openapi.wm.impl.FocusManagerImpl.runOnOwnContext(FocusManagerImpl.java:929)
at com.intellij.openapi.wm.impl.IdeFocusManagerImpl.runOnOwnContext(IdeFocusManagerImpl.java:136)
at com.intellij.openapi.actionSystem.impl.ActionMenuItem$ActionTransmitter.actionPerformed(ActionMenuItem.java:299)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at com.intellij.openapi.actionSystem.impl.ActionMenuItem.lambda$fireActionPerformed$0(ActionMenuItem.java:116)
at com.intellij.openapi.application.TransactionGuardImpl.runSyncTransaction(TransactionGuardImpl.java:86)
at com.intellij.openapi.application.TransactionGuardImpl.lambda$submitTransaction$1(TransactionGuardImpl.java:109)
at com.intellij.openapi.application.TransactionGuardImpl.submitTransaction(TransactionGuardImpl.java:118)
at com.intellij.openapi.application.TransactionGuard.submitTransaction(TransactionGuard.java:122)
at com.intellij.openapi.actionSystem.impl.ActionMenuItem.fireActionPerformed(ActionMenuItem.java:116)
at com.intellij.ui.plaf.beg.BegMenuItemUI.doClick(BegMenuItemUI.java:513)
at com.intellij.ui.plaf.beg.BegMenuItemUI.access$300(BegMenuItemUI.java:45)
at com.intellij.ui.plaf.beg.BegMenuItemUI$MyMouseInputHandler.mouseReleased(BegMenuItemUI.java:533)
at java.awt.Component.processMouseEvent(Component.java:6541)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6306)
at java.awt.Container.processEvent(Container.java:2237)
at java.awt.Component.dispatchEventImpl(Component.java:4897)
at java.awt.Container.dispatchEventImpl(Container.java:2295)
at java.awt.Component.dispatchEvent(Component.java:4719)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4889)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4526)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4467)
at java.awt.Container.dispatchEventImpl(Container.java:2281)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4719)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:764)
at java.awt.EventQueue.access$500(EventQueue.java:98)
at java.awt.EventQueue$3.run(EventQueue.java:715)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90)
at java.awt.EventQueue$4.run(EventQueue.java:737)
at java.awt.EventQueue$4.run(EventQueue.java:735)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:734)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:827)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:651)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:365)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
最佳答案
可能 KeePass 数据库已损坏或其他原因。 找到文件(在 Windows 上通常是
"C:\Users\admin.AndroidStudio3.2\config\c.kdbx"
(适用于 Windows 10 上的 2018.1 版本)； 其他 -- 请参阅 IDE 用于存储设置、缓存、插件和日志的目录)
删除“c.kdbx”文件
对其进行备份(以防万一) 删除它(当然是在 IDE 关闭的情况下)
启动 IDE，看看它是否能解决问题。
关于java - 尝试创建签名 APK 时出错 - 魔数(Magic Number)不匹配，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/48109402/