The import android.support cannot be resolved

Question

I am trying to run the code provided HERE
I downloaded the code from their Github and imported into Android SDK, but it shows error at the lines

import android.support.v4.app.FragmentActivity;
import android.support.v4.app.NavUtils;  

in multiple files. However if I check the Android SDK Manager, the Android Support Library as well as the Android Support Repository in the Extras folder are both installed. I can also see the support folder and it's contents in the SDK_INSTALL\sdk\extras\android\support directory. It also has the v4 folder which also contains the android-support-v4.jar and the src folder. THen why is it still showing the error, how do I resolve it and how do I get that sample code running? THe sample code is for an RSS reader app, if that's relevant.

Answer 1

This issue may also occur if you have multiple versions of the same support library android-support-v4.jar. If your project is using other library projects that contain different-2 versions of the support library. To resolve the issue keep the same version of support library at each place.

Answer 2

Android Studio 2.2.3 Linux Mint 18.1

Inside your 'project view' open Gradle Scripts -> build.gradle(Module:app) and put your mouse pointer inside the word dependencies.

Click on the light bulb and click "add library dependency" and for me all the libraries I wanted were listed there.

example libraries that came up for me: compile 'com.android.support:gridlayout-v7:25.1.0' compile 'com.android.support:support-v13:25.1.0'

I am now looking to add android support by default in Gradles default configuration.

Answer 3

Please follow these Steps:

For Eclipse:

• Go to your Project's Properties
  
• Navigate to the Java Build Path
• Then go to the Libraries tab. There click the Add External JARs Button on the Right pane.
  
• Select the android-support-v4.jar file, usually the path for the Jar file is :
  YOUR_DRIVE\android-sdks\extras\android\support\v4\android-support-v4.jar
  
• After adding android-support-v4.jar Library, navigate to the Order and Export tab and put check mark on the android-support-v4 Library file.
  
• After doing the above, Clean the Project and Build it.
  
• Problem Solved.

For Android Studio:

Short Version:

• Add the following line to your build.gradle file:
  implementation 'com.android.support:support-v4:YOUR_TARGET_VERSION'

Long Version:

• Go to File -> Project Structure

• Go to "Dependencies" Tab -> Click on the Plus sign -> Go to "Library dependency"

• Select the support library "support-v4 (com.android.support:support-v4:YOUR_TARGET_VERSION)"

• Navigate to your "build.gradle" inside your App Directory and double check if your desired Android Support Library has been added to your dependencies.

• Rebuild your project and now everything should work.
  

Further reading regarding this Question:

1. Support Library - Android Dev
2. Recent Support Library Revisions
3. Support Library Packages
4. What is an Android Support Library?
5. How Android Support Library work?

I hope this helps.

Answer 4

andorid-support-v4.jar is an external jar file that you have to import into your project.

This is how you do it in Android Studio:

Go to File -> Project Structure

Go to "Dependencies" Tab -> Click on the Plus sign -> Go to "Library dependency"

Select the support library "support-v4 (com.android.support:support-v4:23.0.1)"

Now to go your "build.gradle" file in your app and make sure the android support library has been added to your dependencies. Alternatively, you could've also just typed compile 'com.android.support:support-v4:23.0.1' directly into your dependencies{} instead of doing it through the GUI.

Rebuild your project and now everything should work.

Answer 5

For me they were appearing when i transferred code manually to another laptop. Just do

File>Invalidate Cache/Restart

click on 'Invalidate Cache and Restart' and your are done.

Answer 6

This is very easy step to import any 3rd party lib or jar file into your project

1. Copy android-support-v4.jar file from your_drive\android-sdks\extras\android\support\v4\android-support-v4.jar
   or copy from your existing project's bin folder.
   or any third party .jar file

2. paste copied jar file into lib folder

3. right click on this jar file and then click on build Path->Add to Build Path

4. even still you are getting error in your project then Clean the Project and Build it.