Androis Studio errors and solutions

Here are some list of Android Studio errors, I faced when trying to use Android Studio. This is not limited only to the listed below, it will be growing, when I get new one.

1. Emulator: [1116]:ERROR:android/android-emu/android/qt/qt_setup.cpp:28:Qt library not found at C:\Users\user1\AppData\Local\Android\Sdk\emulator\lib64\qt\lib
2. > Manifest merger failed: uses-sdkminSdkVersion 9 cannot be smaller than version 14 declared in library [com.android.support.apcompat-v7:26.0.0-alpha1]  Android Studio
3. Error Loading Project: Cannot load 3 facets Details... Android Studio.
4. Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve com.android.support:appcompat-v7:26.1.0.
5. Google Map fragment is blanked with Google logo and update google play services. 
6. >Please fix the version conflict either by updating the version of the google-services plugins (information about the latest version is available at http://bintray.com/android/android-tools//com.google.gms.google-services/) or updating the version of com.google.android.gms to 12.0.1
7. Error:Execution failed for task ':app:preDebugAndroidTestBuild'. > Conflict with dependency 'com.android.support:support-annotations' in project ':app'. Resolved versions for app (26.1.0) and test app (27.1.1) differ. 
8. Emulator: emulator: ERROR: x86 emulation currently require hardware acceleration!
9. Error: Cannot fit requested classes in a single dex file (# methods: 87573 > 65536)
10. KVM is required to run this AVD. /dev/kvm/ device:permission denied. Grant current user  access to /dvm/kvm

Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve com.android.support:appcompat-v7:26.1.0.

This kind of error is Gradle related error. If there is a problem in Gradle or it is working in offline mode, you get error like -

To resolve this kind of error either update your Gradle or put your Gradle in online mode.

To do so, go to -

File ----> Settings ------> Build,Execution, Deployment ------> Gradle ------> and uncheck the Offline mode

Note :- make sure you are connected to internet, because it is updated from there.

Then click Apply and Ok and wait till Gradle is being updated.

Emulator: [1116]:ERROR:android/android-emu/android/qt/qt_setup.cpp:28:Qt library not found at C:\Users\user1\AppData\Local\Android\Sdk\emulator\lib64\qt\lib

As a beginner of using Android Studio, it is very hard to rectify the Android Studio error. As I also a beginner of Android Studio and what I face during my experience, I just share it through my blog. Here I am sharing my experience regarding emulator error. See the error in screen shot -

So, why this problem occurs ? Answer is that, your SDK does not have emulator or partially installed.
To install emulator go to -

Tools -----> SDK Manager -------> Android SDK

 and tick the Android Emulator then Apply and Ok

Note :- make sure that you are connected to Internet.

Confirm it by clicking OK.

Then it will download the emulator from Google Android.

Click Finish.

Restart Android Studio.