android - 安装失败，因为 APK 未签名

Question

我刚刚将我的 Android Studio 从 1.5 升级到 2.2，现在在运行我的应用程序时出现错误:

Installation failed since the APK was either not signed, or signed incorrectly. If this is a Gradle-based project, then make sure the signing configuration is specified in the Gradle build script.

我已经用谷歌搜索了，但没有任何效果，我的 gradle 文件是:

...
android {
    signingConfigs {
        myapp_signed {
            keyAlias 'mkey'
            keyPassword 'pwd'
            storeFile file('.../_keystore.jks')
            storePassword 'pwd'
        }
    }
    compileSdkVersion 22
    buildToolsVersion "21.1.2"
    defaultConfig {
        applicationId '...'
        minSdkVersion 14
        targetSdkVersion 22
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
            signingConfig signingConfigs.myapp_signed
        }
    }
    productFlavors {
    }
}
...

有人知道怎么解决吗？就在我收到这个错误之前，我收到了另一个错误，它说:

Warning:Gradle version 2.10 is required. Current version is 2.2. If using the gradle wrapper, try editing the distributionUrl in C:\Users\blahblah\myproject\gradle\wrapper\gradle-wrapper.properties to gradle-2.10-all.zip

我是这样解决的"Gradle Version 2.10 is required." Error

编辑: 即使我将构建变体切换回调试，卸载应用程序并重试，我也会遇到同样的错误。

Answer 1

对我来说，解决方案是更新我使用的所有库并更新到 Android 23。 也许这对某人有帮助。