So, you’re getting an Android mobile error message called ActivityNotFoundException. What can you do to fix it? First, check your Wi-Fi settings. Is it set to always connect to the Internet? If so, try these fixes. Hopefully, one of them will work for you! Here’s how:


When you’re developing an Android application, you may experience an ActivityNotFoundException. This happens when no app exists that can handle the intent you sent.

If you’re using a Custom Tab, for example, you might be calling the’resolveActivity’ or ‘queryIntentActivities’ methods.

If your application is using these methods, you may have flagged an activity with the ‘FLAG_ACTIVITY_REQUIRE_NON-BROWSER’ intent flag.

Then, when the user presses a button, the “snap” or ‘back’ button, the activity will be launched in the Custom Tab rather than the default browser.


Sometimes you might experience the R.layout android mobile error after rebuilding or moving files. In this case, invalid characters could be the cause of the problem.

To fix the problem, you need to invalidate the cache and project layout in Android Studio. Then, rebuild your project again.

If you still encounter the error, try invalidating the cache and project layout. It should resolve the error. However, if the problem still persists, you may need to restart Android Studio.

The error could also be caused by a different issue. Sometimes the layout doesn’t reference its parent layout files. In this case, you must reference the layout files from the parent project.

The child variable needs to be null. Moreover, the error could occur if you change the layout in the Android Studio. In that case, you must call the “R.layout” method.

After this, you must reference the layout files with the help of a variable called “r”.

An invalid ID can cause critical errors and unexpected behavior. Android Studio should catch this error when compiling your code. To check whether your layout contains invalid IDs, open the corresponding Kotlin file and look for the error message.

If you find the error, you can amend your layout to fix the problem. If this method isn’t sufficient, you can use the IDE’s “Clean Project” feature.

Resolve “Activitynotfoundexception” Android-Declare Activity in Manifest

The “ActivityNotFoundException“ is a quite common error. Basically, your application won’t start during the execution of the App.

You will see the following error in your Logcat:

“android.content.ActivityNotFoundException : Unable to find explicit activity class;”

One way to resolve this is to check whether the activity has been declared and added in the Manifest.

The activity should ideally have already been added to the AndroidManifest.xml. However, in case, you haven’t added it yet, then here is how to add the activity:

Declare Activity in AndroidManifest.xml  

<activity  android:name=”com.yourdomain.YourStoppedActivity” />          

Resolve “Activitynotfoundexception” Android- Clear Cache

Have issues with your mobile browser? Cache error on android mobile could mean a few things.

Firstly, your mobile browser may be outdated, so you should make sure that you update it. If you don’t update it, you might experience this issue more often.

If this is the case, contact the developer of your mobile browser for more help. Otherwise, you can try some of the solutions below to fix the issue.

Alternatively, you can also clear the app’s data. Doing so will free up space, but it will also make your phone behave strangely.

However, the process is not that simple if your phone doesn’t have an SD card. To clear the cache, launch the Settings application and then tap Other Apps.

Look for the application you want to clear and tap OK to confirm. Once you have cleared the data from your device, you’ll be able to run the app as usual again.

If your app crashes every time you open it, try clearing its cache. This will remove any cached files on the device and fix the error.

You can also try clearing the cache for your app by going to the app’s settings page and then selecting the “Cache” option. This way, you will be able to open the app again without the “Cache” error. The problem can occur if your cache is too full or too small.

The kernel is the heart of Android. It is responsible for managing the memory and processes on the device. Every application runs inside a process, which means that when an app closes, the process it runs in is also closed.

The kernel never kills an app directly. It kills the process where an activity runs, and it destroys everything that is running within the process.

However, sometimes it will need to kill the process in order to free up RAM for other programs. If this happens, you may want to kill the process with the force stop feature in the Application Manager.

How to Disable Idle Detection In Chrome

Wi-Fi settings

Sometimes, you may experience an error message stating that the Wi-Fi settings on your Android mobile are not correct.

The reason for this problem may be due to an IP conflict. In this case, you should switch the wireless network setting from DHCP to Static IP.

To do this, navigate to the Settings app and select Wi-Fi. Then, long-press the network name and choose to Manage or Modify network config.

The error message “Wi-Fi settings are incorrect” may also be caused by a router issue. Often, a router will block the device’s IP address for no apparent reason.

In such a case, changing the static IP address of your Android mobile is the best solution. Follow these steps to solve the problem:

Resetting your Android device can help fix this problem as well. You can perform a factory reset on your phone. To do this, simply hold down the power button and turn off and on your phone. Afterward, restart your phone.

You can also manually add or unhide networks. However, to enable these networks, you need to know their names and passwords. If you know the passwords for these networks, you can try restarting the phone.

Resetting your phone to factory settings is another solution if Wi-Fi on your Android is not working. To do this, open Settings on your device, then tap System and then tap Reset options. Now tap Erase All Data (factory reset) and follow the on-screen instructions.

The problem will be solved. If you are facing this issue, make sure you back up your important files before resetting your Android device.

If this method does not solve your problem, you should try turning off your Android device’s Wi-Fi settings. In some cases, the Wi-Fi network information on your device has become corrupted, causing an Android phone not to connect to the wireless network.

To resolve this problem, you should first enable Wi-Fi. To do this, open the Settings app and go to the WiFi tab. Tap the network name to bring up a menu.

This may look different for different Android devices, but the process is the same. Once you’re connected to your Wi-Fi network, you must set the WiFi settings to On.

If you are still facing an issue and the above steps did not help in resolving the error “ActivityNotFoundException Android”, then you can try this article which has some more technical steps that you can try.

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