Failure [INSTALL_FAILED_ALREADY_EXISTS]
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1、发生原因
做unity开发的同事说apk无法安装,要我帮忙看下,然后我通过命令adb install安装apk,出现此提示
2、解决过程
首先想到的仍然是安装包已存在的问题,结果使用清理类软件清理后还是无效。
然后想到的是查看命令的详细解释,会不会是有些参数的问题
adb install [-l] [-r] [-d] [-s] [--algo <algorithm name> --key <hex-encoded key> --iv <hex-encoded iv>] <file> - push this package file to the device and install it
('-l' means forward-lock the app)
('-r' means reinstall the app, keeping its data)
('-d' means allow version code downgrade)
('-s' means install on SD card instead of internal storage)
('--algo', '--key', and '--iv' mean the file is encrypted already)
这么一看好像只有加上-r参数比较靠谱,尝试下ok了。之后询问做unity开发的同事是怎么卸载的应用,说是通过长按,这一想好像是有点道理,因为之前没卸载干净,此时如果直接通过adb install命令安装,则会强制删除之前的一些数据,所以导致安装出问题。当然只是个人想法,如哪位有比较靠谱的理由,还请告知,先谢谢了!!!
3、小结
遇到INSTALL_FAILED_ALREADY_EXISTS问题,直接通过adb install -r xxx.apk命令安装apk即可。
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