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Android APK not installed on device

A few months ago, I sent an Android APK to my client. At that time, it was installed successfully, but the same APK does not want to install (the application is not installed) now on any device.

Again I generated a new unsigned APK, but it also did not install any device. Therefore, I generated a signed APK now and successfully installed on all devices.

Note. I created an APK using Eclipse.

Have you made any changes to the creation of the Android APK?

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No problem creating an APK using Eclipse.

If your device has an unsigned APK installed. A signed APK will not be installed. He gives an error.

If the APK is already installed on the device. Unsiged APK will not be installed. He gives an error.

If any APK installed on the device is not installed directly from Eclipse. Uninstall the already installed APK, then try installing the new APK

Plug this device into your Eclipse code, check Logcat for error logs. Of course, some kind of erroneous exception will be thrown. Then you can easily solve this problem.

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