如果您正在使用cordova，请尝试卸载任何以前通过cordova构建的应用程序。 很奇怪，但是这个方法解决了我的问题

Clearly there are many causes of this problem. For me the situation was this: I had deployed to my nexus 7 (actual device) from within the Android Studio (v1.3.2). All worked fine. I then created a signed apk and uploaded to my Google Drive. After disconnecting my nexus from the usb, I went to the settings/apps and uninstalled my app (App1). I then opened google drive and clicked on my App1.apk and chose to install it (need to ensure you have allowed installation of apks in settings). Then I got the dreaded message "App not Installed"

Solution for me: go back into settings/apps and scroll though all apps and at the bottom was a pale version of my App1 (note the original App1 was at the top in Alphabetical order which was deleted as above). When clicking on the pale version it said "Not installed for this user". (I had set up my nexus to have more than one user). But in the top right corner there is a three dot button. I pressed this and it said "Uninstall for all users". Which I did and it fixed the problem. I was now able to click on App1.apk and it installed fine without the error.

我通过不首先签名应用程序和不使用Maven来解决这个问题。我将此添加到构建路径中。

    <plugin>
        <groupId>com.jayway.maven.plugins.android.generation2</groupId>
        <artifactId>android-maven-plugin</artifactId>
        <inherited>true</inherited>
        <configuration>
            <sign>
                <debug>false</debug>
            </sign>
        </configuration>
    </plugin>

之后，我手动签名我的应用程序:jarsigner -verbose -sigalg MD5withRSA -digestalg SHA1 -keystore /home/myself/.android/release.Keystore myapp-1.0.apk androidreleasekey

打开AndroidMainfest，然后在应用程序标签中添加verionCode, versionName，并确保debug able等于false:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="...">

<application
    ...
    android:debuggable="false"
    android:versionCode="1"
    android:versionName="1.0"
    tools:ignore="HardcodedDebugMode">
    ...
</application>

然后打开构建。gradle (module:app)确保verionCode, versionName退出和minsdk <=您的移动sdk:

defaultConfig {
    ...
    minSdkVersion 19
    targetSdkVersion 28
    versionCode 1
    versionName "1.0"
   ...
}

查阅资料来源:https://developer.android.com/studio/publish/

https://developer.android.com/studio/publish/preparing &

https://developer.android.com/studio/publish/versioning &

和https://developer.android.com/studio/publish/app-signing

我也面临着同样的问题。问题是我的AndroidManifest.xml文件中的主要活动写了两次。我删除了副本。

在尝试安装应用程序时，打开你的logCat。将其设置为“无过滤器”。搜索“InstallAppProgress”包标识符。如果安装失败，您将看到“安装错误代码”。对我来说是

D/InstallAppProgress: Installation error code: -7

从这里，您可以使用此链接查找有关特定错误代码的信息。