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Android System Installer application "Application not installed" why? where is the magazine for this?

I am trying to install unsigned apk by placing it in the download directory.
The installer appears and has several warnings, for example, allows you to change properties, etc.
I click on install and it just says that the application is not installed?

What is the possible reason for this and in which log file the installer will tell me this problem.
Where is this log file?

thanks

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It is possible that the same application is already installed on the device, but with a different computer, and now you are trying to install the same unsigned application from your computer.

SOLUTION 1: Uninstall this installed application. SOLUTION 2: Sign the application and try installing

This happens with the unsigned apk file, because for unsigned apk, android uses debug.keystore, which is different from computer to computer.

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adb logcat from the official Android dev tools is likely to be useful. (In the middle there are some almost useful error dialogs, but you pretty much need to be a ROM puzzle or rich enough to throw phones away every couple of months to get them.)

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Actually, I just had to develop from two different computers, and this is what logcat says: [2011-03-17 23:05:58 - CustomTabs] Uploading CustomTabs.apk onto device 'HT93SKF05669' [2011-03-17 23:05:59 - CustomTabs] Installing CustomTabs.apk... [2011-03-17 23:06:06 - CustomTabs] Re-installation failed due to different application signatures. [2011-03-17 23:06:06 - CustomTabs] You must perform a full uninstall of the application. WARNING: This will remove the application data! [2011-03-17 23:06:06 - CustomTabs] Please execute 'adb uninstall com.fy.box.android' in a shell. [2011-03-17 23:06:06 - CustomTabs] Launch canceled! [2011-03-17 23:08:14 - CustomTabs] ------------------------------ [2011-03-17 23:08:14 - CustomTabs] Android Launch! [2011-03-17 23:08:14 - CustomTabs] adb is running normally. [2011-03-17 23:08:14 - CustomTabs] Performing com.fy.box.android.CustomTabActivity activity launch [2011-03-17 23:08:16 - CustomTabs] Uploading CustomTabs.apk onto device 'HT93SKF05669' [2011-03-17 23:08:16 - CustomTabs] Installing CustomTabs.apk... [2011-03-17 23:08:44 - CustomTabs] Success! [2011-03-17 23:08:44 - CustomTabs] Starting activity com.fy.box.android.CustomTabActivity on device HT93SKF05669 [2011-03-17 23:05:58 - CustomTabs] Uploading CustomTabs.apk onto device 'HT93SKF05669' [2011-03-17 23:05:59 - CustomTabs] Installing CustomTabs.apk... [2011-03-17 23:06:06 - CustomTabs] Re-installation failed due to different application signatures. [2011-03-17 23:06:06 - CustomTabs] You must perform a full uninstall of the application. WARNING: This will remove the application data! [2011-03-17 23:06:06 - CustomTabs] Please execute 'adb uninstall com.fy.box.android' in a shell. [2011-03-17 23:06:06 - CustomTabs] Launch canceled! [2011-03-17 23:08:14 - CustomTabs] ------------------------------ [2011-03-17 23:08:14 - CustomTabs] Android Launch! [2011-03-17 23:08:14 - CustomTabs] adb is running normally. [2011-03-17 23:08:14 - CustomTabs] Performing com.fy.box.android.CustomTabActivity activity launch [2011-03-17 23:08:16 - CustomTabs] Uploading CustomTabs.apk onto device 'HT93SKF05669' [2011-03-17 23:08:16 - CustomTabs] Installing CustomTabs.apk... [2011-03-17 23:08:44 - CustomTabs] Success! [2011-03-17 23:08:44 - CustomTabs] Starting activity com.fy.box.android.CustomTabActivity on device HT93SKF05669

if you already installed the application, uninstall it and try reinstalling ... hope this helps!

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