How to Fix Android App Not Installed Error on Oppo A78 Quickly? | Dr.fone

How to Fix Android App Not Installed Error on Oppo A78 Quickly? | Dr.fone

Nova Lv13

How to Fix Android App Not Installed Error on Oppo A78 Quickly?

App not installed on Android is no more an unknown Error Code during Application installation as many people experience it on a day-to-day basis. An “Application not installed” error message usually pops up when you are trying to download and install an App with a .apk file extension from somewhere other than the Google Play Store. The error is very confusing at first but makes sense when you realize that this unknown Error Code during Application installation is neither a software issue nor a hardware problem. It is a direct outcome of what you do with your device. Yes, you heard that right. Your faulty actions can cause Android App not installed error.

app not install on android

What to do when trying to install the Android APK it says “app not installed”? It is terrible that you can’t install App on your device. But in this article, you will know more about the causes behind this error and the best ways to fix it, read on, here is all you need to know.

Part 1: Common reasons for the “Android App not installed” error

You may ask: Why can’t I download apps on my Oppo A78? Understanding the underlying causes of the “Android App Not Installed” error is crucial for resolving the issue effectively. So, what are the reasons for Android App not installed error? Given below are a few reasons:

1. Insufficient storage

Android software and if data such as photos, videos, music, messages, apps, contacts, emails, etc are stored in the internal memory there is not adequate storage left for another App, leading to Android App not installed error.

2. Corrupted/Contaminated App file

When you do not download Apps from the Play Store and choose another platform to do so, App files are usually corrupted and hence cannot be installed on your device smoothly. You should be doubly sure of the source from where you download an App, check its extension name, and make an effort not to install contained files.

3. SD Card not mounted in the Oppo A78 device

At times your phone could be connected to your PC or another electronic device that can access the SD Card from your device. In such situations when you install an App and choose to save it to your SD Card, you will see Android App not installed error because the App cannot find the SD card as it is not mounted in your device.

4. Storage location

You must be aware that certain Apps work their best when stored in the Oppo A78 device’s internal memory, whereas others need to be located on an SD Card. If you do not save the App in an appropriate location, you will find that the App isn’t installed because of an unknown Error Code.

5. Corrupt storage

Corrupted storage, especially a corrupted SD Card, is known to cause the Android App isn’t installed error. Even the internal storage can get clogged due to unnecessary and unwanted data, some of which might contain an element that disturbs the storage location. Take this issue seriously as a corrupted SD Card and even clogged up internal memory can put your device in danger.

6. Application Permission

Software operations running in the background and App Permission are not new concepts. Such errors can also cause the Unknown Error Code during App installation.

7. Incorrect file

If you already have an App installed but download another variant of it having a distinct signed or unsigned certificate can also make the Android App not installed error pop-up. This sounds technical, but this and all the other reasons listed above can be tackled by you.

The Unknown Error Code during Application installation can occur due to any one or more of the reasons stated above. So read them carefully and understand them well to avoid such glitches in the future.

![application not installed](https://images.wondershare.com/drfone/article/2017/07/14994439892909.jpg "application not installed")

Part 2: One-click to fix App not installed on Android error

So App not installed on your Oppo A78 or tablet? The most horrible part is that this issue may come out of the corruption in the system files. In this situation, Android apps won’t be installed no matter what measures you take. Android system repair is the only effective solution to deal with this issue.

Android system repair used to require high technical skills. But most of the users know little about technical things. Well, worry not! Dr.Fone - System Repair (Android) allows you to repair Android easily, that is, complete the fix with just one click.

Dr.Fone - System Repair (Android)

A powerful tool to fix the “Android App not installed” error in one click

  • Fix all Android system issues like Android App not being installed, the system UI not working, etc.
  • One-click to fix Android App not installed. No technical skills are required.
  • Support all the new Oppo A78 devices, etc.
  • On-screen instructions are provided to prevent any misoperation.

3981454 people have downloaded it

Note: Getting your Android system repaired may erase the existing device data. It is recommended that you should back up your Android data before starting the Android repair.

The following steps illustrate how to fix the “Android App not installed” error in one click:

  1. Install Dr.Fone on your Windows. After that, launch it, and click “System Repair”. Connect your Android to the computer.

fix Android App not installed error using a tool

  1. Select the “Android” option and click “Start”.

fix Android App not installed error - select Android Repair

  1. Select device information, such as brand, name, model, country, etc., from each field, and type “Next”.

fix Android App not installed error by selecting device details

  1. Follow the on-screen instructions to boot your Android in download mode, and allow the tool to download the firmware to your device.

fix Android App not installed error in download mode

  1. After the firmware is downloaded, the tool will start to repair your Android, hereby fixing the “Android App not installed” error.

fix Android App not installed error after firmware download

safe Downloadsafe & secure

Part 3: How to fix App not installed error on Android

We understand that it can be a tricky situation to be in when Android App not installed error pops up, but what if we tell you can get rid of it in easy and simple steps? Yes, there is!

#1. Delete unnecessary files/Apps

Insufficient storage can prevent the app from being installed. Make some storage space on your device by cleaning unwanted data and deleting extra media and other files. You can also get rid of heavy Apps by:

Visiting “Settings” on your device. Then select “Manage apps”, “Application Manager” or “Apps” (varies based on device model or version) from the list of options before you.

application manager

Now select the App you wish to uninstall and wait for the App Info screen to open, then click on “Uninstall” as shown in the screenshot.

uninstall app

You can also uninstall the unnecessary application on the home screen, just long-press the app you want to uninstall until you see the “uninstall” icon. Click “Uninstall”, then, you need to click “OK” to confirm the uninstall process.

uninstall app

#2. Use only Google Play Store

As you are all aware, the Play Store is specially designed for Android software and contains only trusted and safe Apps. It is often known as the “Android Market” because it is loaded with different types of Apps to stiffly all your needs so that you don’t have to rely on other third-party sources to purchase/install Apps.

play store

vMix Basic HD - Software based live production. vMix Basic HD includes 4 inputs, 3 cameras, streaming, recording, playlist.
This bundle includes Studio 200 for vMix from Virtualsetworks, HTTP Matrix 1.0 automation scheduler, and 4 introductory training videos from the Udemy vMix Basic to Amazing course.

#3. Mount your SD Card

Another remedy for Android App not installed error is to make sure that the SD card inserted in your device is not inaccessible.

SwifDoo PDF Perpetual (1 PC) Free upgrade. No monthly fees ever.

mount sd card

To check the same:

First, disconnect your Oppo A78 from your PC and then visit “Settings” on your Android and select “Storage” from the options that appear. Finally, click on “Mount SD Card” at the Storage Info screen.

You can now restart your device and try to install the app now, it should work!

#4. Choose App location wisely

It is advisable to not tamper with the App’s location and let the software decide where it needs to be placed. As far as possible, let the Apps be in your device’s internal memory.

#5. Format SD Card

The chances of your SD Card being corrupted are very high. You can format it either while it is in your device or externally.

Now to Clean up your SD Card, simply visit “Settings” and select “Storage” and tap on “Format SD Card” and mount it once again to use it smoothly.

format sd card

#6. App Permissions

You can reset App permissions to combat the Android App not installed error by Visiting “Settings” and then selecting “Apps”. Now access the Apps menu and hit “Reset App Preferences” or “Reset application permissions”. This will allow third-party apps to get installed on your device.

Take advantage of PREMIUM features for 12 months.
Create your texts / logos without any limitation.
No attribution required when downloading.
No advertising on the website.
TextStudio.com PREMIUM - Yearly Membership

#7. Choose the correct App file

Make sure to always download an App file only from a trusted and safe source to avoid any errors during installation.

#8. Reboot your device

Finally, if nothing else works, restart your device to end all operations which could be causing the said error. To reboot, just press the power button till you see a pop-up. Select “Restart” and wait for your device to reboot.

restart device

Conclusion

Encountering the “App Not Installed” error on Android can be frustrating, but by understanding the causes and implementing the appropriate solutions, you can overcome this issue. We saw that Android App not installed error can be fixed quickly if you keep in mind the tips given in this article. However, please ensure that you follow each instruction carefully to avoid any further goof up.

safe Downloadsafe & secure

4 Solutions to Fix Unfortunately Your App Has Stopped Error on Oppo A78

We often find people complaining, “Unfortunately Youtube has stopped”, “Unfortunately the internet has stopped” or “Unfortunately Netalpha has stopped”. An error that causes Apps to randomly stop working is experienced by users daily. This is a strange error as it occurs while you are using an App, and it suddenly stops working or crashes. You are brought back from the App screen to the Home Screen of your device with an error message saying: “Unfortunately, it has stopped working.”

Unfortunately,has stopped working

Apps not working or stopped while working, such as unfortunately Netalpha has stopped or unfortunately the internet has stopped, is a very confusing error because one moment your App is running smoothly and the next moment it shuts down automatically with an error message. Unfortunately, Youtube has stopped working, Netalpha has stopped. Unfortunately, the internet has stopped, and many more such examples of Apps stopping while working normally are witnessed by users all over the world, and they are constantly on a lookout for solutions to fix such an error.

Read on to find out why exactly your App stops working suddenly and 3 of the best and most effective ways to tackle the problem.

Lyric Video Creator Professional Version

Part 1: Why your App stops working suddenly?

Unfortunately, Youtube has stopped; unfortunately, Netalpha has stopped working, etc. are error messages that pop-up now and then while using Apps on Android mobile devices. It is important to understand that such errors are not App/Apps specific and may occur to any App/Apps. There is no one specific App or genre of Apps that face this problem.

The reason behind unfortunately internet has stopped or any other App which experiences such a glitch in data crash. A data crash is not a serious problem and only means a situation wherein an App, OS, or software stops working normally and exits abruptly. This may happen due to various reasons such as unstable internet connection, both cellular and WiFi. Another reason for Apps to stop working could be corrupted Cache files, which have not been cleared in a long time.

Many users also feel that incomplete or improper installation may cause the App to crash and stop working suddenly.

There may be many more reasons for them; unfortunately, App has stopped error to show up, but no one reason can be blamed for it.

Therefore it is important for us to carefully examine the problem and choose from the solutions given below to fix Unfortunately, Youtube has stopped; unfortunately, Netalpha has stopped; unfortunately, the internet has stopped and many other similar unfortunately App has stopped working errors.


Part 2: A One-Click Fix to ‘Unfortunately App has Stopped’

Fortunately, while this is an annoying problem that stops you from doing what you’re doing, the best way to eliminate this error is simply to repair the data glitch, thus preventing it from happening.

The easiest solution is to use a software application known as Dr.Fone - System Repair , a specialist piece of programming designed to help you fix your devices as quickly as possible.

If this sounds like the option you need to alleviate your, unfortunately, YouTube has stopped errors; this is how to use it.

How to Use Dr.Fone -Repair to Fix Unfortunately App has Stopped Error

Note: Please note that using this solution may rewrite and repair all data on your phone, meaning there is the potential to lose data during the process. Make sure you back up your device before continuing.

Step #1 - Acquire the Software

Head over to the Dr.Fone - System Repair website and download the software to your Mac or Windows computer.

Step #2 - Connect Your Android Device

Launch Dr.Fone and click the System Repair option from the main menu. Now connect your Oppo A78 using the official cable.

fix unfortunately youtube has stopped or other app stopping

From the next menu, select the ‘Android Repair’ option and press ‘Start’.

start to fix app stopping

Step #3 - Input Information & Repair

Tap in your phone information. This is to make sure your device is repaired correctly while minimizing the risk of bricking your device.

select device info

Follow the on-screen instructions on how to then boot your Oppo A78 in Download mode.

fix app stopping in download mode

Once booted, the software will verify your firmware and start repairing your device. Make sure your phone stays connected throughout the process, and you’ll be ready to go and your ‘unfortunately the internet [or another app] has stopped’ error should be erased!

Internet stopping fixed

This could take some time, depending on your internet connection and speeds, so be mindful that everything stays connected.

Part 3: Fix your App has unfortunately stopped by clearing App Cache

Herein we bring to you 3 of the most effective remedies to combat the; unfortunately, App has stopped error, which has helped many users facing similar problems.

First among these is to clear the App’s cache. Clearing App Cache to fix Unfortunately Youtube has stopped, and such errors are very popular as it cleans your App/Apps by wiping off data that has been stored due to constant App usage, and it makes the App/Apps as good as new. It is advised to all users to clear the App cache regularly for Apps to function better.

Follow the steps given below to learn how to clear App cache:

• Visit “Settings”  to find an option named “Apps”.

Apps

• Tap on “Apps” and look for the App which has suddenly stopped.

• Click the App name, say, for example, “Youtube” by scrolling down in “All” Apps.

Power Tools add-on for Google Sheets, 12-month subscription

All

• From the options that appear, tap on “Storage” and then on “Clear cache” as shown below.

![Clear cache](https://images.wondershare.com/drfone/article/2017/06/14984195179360.jpg)

Clearing App cache is always a good idea as it prevents any errors which may be caused due to the cache being corrupt or too full. This method is likely to help you, but if the problem persists, read on to find out about 2 more solutions.

Part 4: Fix your App has unfortunately stopped by the fresh installation

Sometimes, unfortunately, Youtube has stopped; unfortunately, the internet has stopped, and such errors are caused due to improper or inappropriate App installation. It is mandatory to completely download the App from the Google Play Store and use it after it is successfully installed on your device.

Firstly, to uninstall all an existing App from your device, follow the instructions given hereunder:

• Visit “Settings” and search for “Application Manager” or “Apps”.

Application Manager

• Select the App you wish to uninstall, say, for example, “Messenger”.

• From the options that appear before you, click on “Uninstall” to delete the App from your device.

Uninstall

You may also uninstall an app directly from the Home Screen (only possible in certain devices) or the Play Store.

To re-install the App, visit Google Play Store, search for the App name and click on “Install”. You will also find the deleted App in “My Apps and games” on your Play store.

This method has helped many and will be useful to you too. So don’t hesitate to try it. It may sound tedious and time-consuming, but it hardly takes 5 minutes of your time.

Part 5: Fix your App has unfortunately stopped by factory reset

Factory Reset must be used only when nothing else works. Please remember to take a back-up of all your data and contents on the cloud or an external memory device, such as a pen drive before adopting this method because the one you perform a factory reset on your device, all media, contents, data and other files are wiped out, including device settings. Do remember to back up the data on an Android device before performing a factory reset.

Follow the step-by-step explanation given below to factory reset your device to fix Unfortunately Youtube has stopped; unfortunately, the internet has stopped working and similar errors:

• Visit “Settings” by clicking the settings icon, as shown below.

Visit “Settings”

• Now select “Backup and Reset” and move on.

select “Backup and Reset”

• In this step, select “Factory data reset” and then “Reset Device”.

• Finally, tap on “ERASE EVERYTHING” as shown below to Factory Reset your device.

tap on “ERASE EVERYTHING”

Note: Once the factory reset process is complete, your device will automatically restart and you will have to set it up once again.

Errors such as unfortunately, Youtube has stopped, unfortunately, Netalpha has stopped, unfortunately, the internet has stopped working and so on are very common these days. They disrupt the normal functioning of an App/Apps and prevent you from using the App/Apps smoothly. Unfortunately, App has stopped error is not a serious problem and does not mean there is a problem with the App, your Android OS version, or your handset. It is a random error which occurs due to various reasons in a given situation. If you experience such an error while sign in your favorite App/Apps, DO NOT panic as unfortunately, App has stopped error can be fixed easily. All you need to do is be patient with the App’s software and not try to launch it again and again once it crashes, and an error message pops-up. Just follow the methods listed and explained in detail in the previous segments to solve the problem of unfortunately App has stopped.

Want to Uninstall Google Play Service from Oppo A78? Here is How

In this article, you will learn the pros and cons of uninstalling Google Play services, as well as a free root tool to help you do this.

Acts as a one-stop destination to download various kinds of apps from the Play Store. The Play service also provides a way to manage these apps without much hassle. From uninstalling to updating an app, all of this can be done with Google Play service. Nevertheless, there are times when users wish to uninstall Google Play services. To start with, it takes a lot of storage and makes it pretty tough for users to manage their devices. To help you, we will let you know how to uninstall Google Play Store in this informative post.

Part 1: Reason you might want to get rid of Google Play Service

Before we proceed and discuss different ways on how to update Play Store after uninstalling updates, it is important to cover the basics. We have heard plenty of users who wish to uninstall Google Play services, but are not sure of the repercussions. One of the main reasons is that it consumes a lot of space on phone’s storage. Not just that, it only consumes plenty of battery as well.

If your device is giving the insufficient storage warning, then you need to start by clearing your phone’s data. It is observed that the Google Play Service accumulates most of the data in a device. This leads to users looking for different ways to how to uninstall Google Play Store.

Part 2: What will it affect to uninstall Google Play Service?

If you think that Google Play Service only provides a platform to download new apps, then you are wrong. It provides several other functions that might alter the way you use your smartphone. It is linked with other essential Google services as well, like Google Maps, Gmail, Google Music, etc. After uninstalling the Google Play Service, you might face trouble using various essential apps.

Furthermore, it might tamper with the overall functionality of your device as well. For instance, you could encounter network issues, messaging problems, app crashing, and more. Since the Play Service is closely associated with Android system, it might have a prominent effect on your phone. If you have a rooted device, then you can easily install custom ROM and resolve these issues. Though, for a non-rooted device, overcoming these problems could be a big hurdle.

Part 3: How to disable Google Play Service?

By now, you already know all the repercussions of getting rid of Google Play Services permanently. Before you learn how to update Play Store after uninstalling updates, be sure whether you wish to uninstall Google Play Services or not. You can also choose to simply disable the services as well. If you face any severe issue afterward, then you can always enable the services manually.

To disable the Google Play Services, just go to your phone’s Settings > Applications > All and open Google Play Services. You will get to know about the app’s detail and a few other options here. Just tap on the “Disable” button. It will generate another pop-up message. Confirm it by tapping on the “Ok” button. This will disable Google Play Services on your device. Later, you can follow the same drill to enable it as well.

uninstall google play services-open Google Play Services

Now when you know how to uninstall Google Play Store on your device, you can easily customize it. Get rid of any kind of problem you are facing due to lack of storage or battery issues related to Google Play services after following these instructions. Feel free to drop a comment below if you face any setback while following this tutorial.


  • Title: How to Fix Android App Not Installed Error on Oppo A78 Quickly? | Dr.fone
  • Author: Nova
  • Created at : 2024-07-19 22:43:47
  • Updated at : 2024-07-20 22:43:47
  • Link: https://change-location.techidaily.com/how-to-fix-android-app-not-installed-error-on-oppo-a78-quickly-drfone-by-drfone-fix-android-problems-fix-android-problems/
  • License: This work is licensed under CC BY-NC-SA 4.0.