I have installer generated by WiX and I want it to ask: "You have already installed this app. Do you want to uninstall it?" when run. Currently it installs the app once more and uninstalls it incorrectly if there was another version installed be…

最近在用IronGithub访问Github api时遇到一个问题: the selected file is a solution file but was created by a newer version of this application and cannot be opened 原因是从github拿到的irongithub的源码的solution文件为Visual Studio 2012, 而我本机只装了VS2010. 如何才能用VS2010打开VS2012的solution文…

转载 http://stackoverflow.com/questions/10206090/how-to-install-an-older-version-of-package-via-nuget ry the following: Uninstall-Package Newtonsoft.Json -Force followed by: Install-Package Newtonsoft.Json -Version <press tab key for autocomplete> twi…

Deep within the OS is a backup copy of the OneDriver installer. To find it, go to  File Explorer> This PC and open the system drive where Windows 10 is installed (usually C:\). Open the Windows folder and then open the WinSxS folder. In the search bo…

问题所在 我们可以发现这个错误跟protobuf的版本有关,因此我们可以执行script/diagnose_protobuf.py 我们可以看到,pip install protobuf 和 brew install protobuf 的版本不一样导致的 解决办法 更新brew的版本 brew install protobuf@3.4 直接指定版本3.4,根据你的需求作相应的改变 brew link --force --overwrite protobuf@3.4 链接到3.4,因为你的机器上可…

解决办法: C:\Users\Administrator>msiexec /i C:\Users\Administrator\Downloads\mysql-installer-web-community-5.7.23.0.msi /l*v C:\msi.log 打开msi.log, 找到类似 HKLM\Software\Classes\Installer\Products\B1516CACECCBBB94B9FE5E819EB306AD\SourceList 中出现意外值或缺少值: (名称:…

Following content is reprinted from here, please go to the original website for more information. Author: Alex Shevchuk Introduction A typical Major Upgrade removes a previous version of an application and installs a new version.  This blog will guid…

上篇刚好说到获取到了签名信息,以下进入安装过程,直接上源代码: private void installNewPackageLI(PackageParser.Package pkg, int parseFlags, int scanMode, UserHandle user, String installerPackageName, PackageInstalledInfo res) { // Remember this for later, in case we need to rollbac…

文件清单 framework\base\services\core\java\com\android\server\pm\PackageManagerService.java PackageManagerService.rar (已经带有文字注释的文件) 下面截取部分介绍 1 PMS初始化 public static final IPackageManager main(Context context, boolean factoryTest) { PackageManagerService m…

我们知道在android中.安装应用是由PackageManager来管理的,可是我们发现PackageManager是一个抽象类.他的installPackage方法也没有详细的实现. 那在安装过程中是怎么运行的呐? 调用方 查看代码能够知道ApplicationPackageManager是直接继承自PackageManager的.所以终于代码会调用ApplicationPackageManager下的installPackage(Uri packageURI, IPackageInstal…