Android system is great when it comes to using Apps and enjoy a seamless smartphone experience. Many times you may get annoying messages while you install Apps on your device, especially apps from ‘unknown sources’. One such message is ‘App Not Installed’ or ‘Application not Installed’. And it is a common issue faced by Android KitKat, Lollipop, Marshmallow, etc.
When you try to install any App which is incompatible with your device OS and software the App may not get installed successfully. Thus giving you the error message App Not Installed. There are mainly a few possible reasons for the error of installation.
- The App build may have corrupted or some of the core files have been modified knowingly or unknowingly.
- Your device storage is full which blocks the package installer from dysfunction.
- Installing APK bundles which do not support simple APK Arch installation
- Android Manifest is the set of permissions and has a lot of permissions where an error might have occurred.
- Gradle file – The problem might be in the file itself. Just check the minimum SDK version is suitable for your device.
- Installing an unsigned app could also result in this error.
Note: Before going through the fix, make sure to uninstall any already installed app of the same nature. And try installing the app to see if the issue is fixed.
Methods to Fix App Not Installed Error
Here are the Best Solutions to Fix App Not Installed Error on Android OS.
1. Change App Codes
You can make some changes in the version code or SDK to do so. This method also works on Firestick and Fire TV.
Step 1. Download the APK Editor app.
Step 2. Now open APK Editor App and click on “Select an Apk File”. Now search for the app which you wish to install.
Step 5. Click the app and select the “common edit” option.
Step 6: Here change the Install Location to any other option whichever applicable for your device.
*You can also change the Version Code of the App to any older one which is supported by your device. (*Try this if location change do not work)
Step 7. Apply the changes in APK Editor App.
Step 8. Uninstall the similar pre-installed app and install the modified App from APK Editor.
2. App Bundles APKs
If the APK file is Split into App bundles, ‘App Not Installed‘, is the error you will face if you try installing APK. Make sure the File is Not Split APK App Bundle. If it is a bundle than you need to install it using a Split Installer. Google introduced a new way to distribute Android apps called app bundles. While the regular apps contain all necessary resources like screen size, manifest, XML, Config, and architecture in a single APK.
The app bundles only include the components that your specific device needs, organized into split APKs. While app bundles help save storage space and data usage, they are not one-size-fits APK files. You need to use a split APK installer to install app bundles.
In simple terms, APK is split in different APKs which include Base.APK, Config-Archi.APK and other Files which can only be installed using a 3rd party split installer. If you directly try to Install the APK you will see ‘App not Installed’ Error.
Note: Make sure you have installed all the APK files necessary to install the App using Split APK Installer.
Here are the Steps to Install App Bundles Split APK File Using an Example.
Step 1. Download All the APK Files viz. Base APK, Config Archi APK or any other APK File if Listed.
Step 2. Now Download and Install Split APK from Play Store.
Step 3. Click on Install APKs Button.
Step 4. Locate the Files and Select All the Files.
Step 5. Now Click on Select.
Step 6. Now you will an Installation box, click Install and Done!
3. Disable Google Play Protect
Google Play Protect is Google’s built-in malware protection for Android. It scans the installed apps or apps to be installed for any virus and if it finds any harmful code or nature, blocks the installation. The play protects not only works or apps installed from the play store but also for 3rd party apps.
So, if you face any install error it is better to disable play protect and give a try.
- Go to Play Store
- Click on the Menu Hamburger icon on the Left top
- Here look for Play Protect
- Click on the Settings icon
- Disable Play Protect.
4. Sign the Unsigned App
- First, download and install ZipSigner from Google Play Store.
- Launch the app.
- You will see the app dashboard. You will see the dashboard,
- Now, tap on Choose input/output and locate the apk file
- Then tap on ‘Sign the file’.
- Let the process be complete and then install the signed apk.
5. Reset All the App Preference
- Go to Settings on your Android device.
- Open Apps or Apps manager.
- check for All Apps.
- Tap on the menu icon.
- Click on ‘Reset App Preferences’.
6. Avoid Installation from SD Card
If the APK is downloaded or if you are trying to install it from an external mount than in many cases it would be not possible due to contamination of the file. The installer may not completely parse the package from mounted storage.
The best solution, in this case, is to download the APK onto your internal storage and try installing the App. Your mobiles package installer will accept the files without any errors.
7. Use an older version of the App
Any latest version of the App may not support your device due to system limitations. Just download any older version of the App. If this works then your device is not capable to read the latest APK.
8. Clear Data and Cache of Package Installer
- Open setting on your Android device.
- Look for the option called Apps or Manage apps and tap on it.
- Check for the Package Installer App under system Apps
- You will find two option of Clear data and Clear cache. (For Android Marshmallow 6.0 users check for option Storage to clear data and cache)
- Clear the data and cache to solve the problem.
9. Allow Apps from Unknown Sources
This is the most common issue which could cause the error on mobile or tablet.
Go to Settings → Security → Unknown Sources. Enable Unknown Sources. And then try installing App.
10. For Root Devices
If you have a rooted phone then the success rate increases manifolds.
- Download and open any root explorer app on your rooted device.
- Copy the Apk then go to system >app and grant permissions to the app.
- You will see the App installed on your device.
Using Lucky Patcher
- Download, install and open Lucky Patcher (Google Search to Download File)
- Tap the option Toolbox
- Click Patch to android
- Check “Signature Verification status always true” and “Disable apk Signature Verification” and Apply.
- Reboot your device if not automatically rebooted.
10. Clear Storage/Set Path
Clear some storage space on the device. Make sure SD Card has properly mounted if the file in located in SD Card.
I also recommend downloading the file in internal storage as downloading some types of APK files in external storage may sometimes cause issues due to improper read by package installer of Android OS.
Download the file from any other source in case the file itself is corrupted.
11. Other Miscellaneous Fixes
- Delete .android_secure/smdl2tmpl.asec file from your SD Card.
- Reboot the phone and even remove the battery if possible.
- Uninstall all previous versions of the app or apps with the same resemblance currently installed on your device.
- Remove the SD card and also do not connect your device to a PC while you install the apk.
- Free up some space, uninstall unnecessary apps.
Note & Conclusion: If the above post couldn’t solve the problem then you need some coding in Android SDK to check
build.gradlefile is unique.
I hope the post was helpful to resolve the issue of App Not Installed Error. Do comment below for any assistance if needed.
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