Android Studio - Importing External Library/Jar

Adding external library (.jar) in Android Studio

I ran the gradlew.bat file, which gave me the following Exception:

Exception in thread "main" java.lang.RuntimeException: Could not determine wrapper version.at
org.gradle.wrapper.GradleWrapperMain.wrapperVersion(GradleWrapperMain.java:111)at 
org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61)Caused by: 
java.lang.RuntimeException: No build receipt resource found.at 
org.gradle.wrapper.GradleWrapperMain.wrapperVersion(GradleWrapperMain.java:97)... 1 more

which brought me to this answer and indeed i had used an ! in my project name. Removing it somehow solved the problem.

Android Studio - Importing external Library/Jar

So,

Steps to follow in order to import a JAR sucesfully to your project using Android Studio 0.1.1:

• Download the library.jar file and copy it to your /libs/ folder inside your application project.
• Open the build.gradle file and edit your dependencies to include the new .jar file:

compile files('libs/android-support-v4.jar', 'libs/GoogleAdMobAdsSdk-6.4.1.jar')

• File -> Close Project
• Open a command prompt on your project's root location, i.e 'C:\Users\Username\AndroidStudioProjects\MyApplicationProject\'
• On the command prompt, type gradlew clean, wait till it's done.
• Reopen your application project in Android Studio.
• Test run your application and it should work succesfully.

Adding external library in Android studio

Try this:

File > Project Structure > Dependencies Tab > Add module dependency (scope = compile)

Where the module dependency is the project library Android folder.

importing jar libraries into android-studio

Updated answer for Android Studio 2

The easy and correct way to import a jar/aar into your project is to import it as a module.

New -> Module

Select Import .JAR/.AAR Package

Select the .JAR/.AAR file and put a module name

Add the module as a dependency

Add external library and jar in Android Studio

For adding external library or dependency, you can either edit gradle file for app manually, or you can do it by Project Structure.

• Edit Gradle File of app

Open gradle file of app, you can add/edit in the dependencies tag,

the first line compile fileTree(dir: 'libs', include: ['*.jar']) indicates that it will include the jar files in this project;

• in Project Structure

File -> Project Structure, and in the pop-up window, click app in the left list, then click dependencies, in the top-right corner, click + to add new dependency.

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