Android|Android Studio Run签名报错[signatures do not match the previously installed version;]

[Installation failed with message INSTALL_FAILED_UPDATE_INCOMPATIBLE: Package com.xxx.xxx signatures do not match the previously installed version; ignoring!.
It is possible that this issue is resolved by uninstalling an existing version of the apk if it is present, and then re-installing.
【Android|Android Studio Run签名报错[signatures do not match the previously installed version; ]】WARNING: Uninstalling will remove the application data!
Do you want to uninstall the existing application?]
问题: 签名与先前安装的版本不匹配
原因: 设备安装过带有签名的软件,一般卸载即可。
有的设备仍然无法直接运行安装,依然报签名不匹配问题。
但是正常打包之后带有签名的apk可以直接安装成功,给debug下增加签名即可。
解决: 1. 打开“Build——>Edit Build Types”,默认Build Types提供两种构建模式:debug、release,这里我们处理debug;
2.一般都是默认配置,重点是Signing Config选项,发现没有...去Signing中新建一个.
Android|Android Studio Run签名报错[signatures do not match the previously installed version;]
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Build Types 3.准备好自己的应用签名文件。


Android|Android Studio Run签名报错[signatures do not match the previously installed version;]
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Signing 4.填写好信息回到Build Types——选择Signing Config——选择刚才创建的Signing点击OK,项目自动Build...
5.完成之后发现build.gradle中多出下图信息,再次点击Run运行项目发现,可以喽~


Android|Android Studio Run签名报错[signatures do not match the previously installed version;]
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build.gradle - signingConfigs

Android|Android Studio Run签名报错[signatures do not match the previously installed version;]
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build.gradle - buildTypes

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