该链接程序不在被安装在手机上 Launcher does not have the permission to launch Intent

?

错误：Launcher does not have the permission to launch Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.small.test/.SmalltestAndroidActivity }. Make sure to create a MAIN intent-filter for the corresponding activity or use the exported attribute for this activity.

?

此错误的原因：在AndroidMainfest.xml中将一个SmalltestAndroidActivity定义了2遍导致的。