Develop Reference

Github project import to Android Studio : Migrate Project to Gradle? This project does not use the Gradle build system

First of all This is not a duplicate of any of below questions
Migrate project to gradle error
Can't migrate project to Gradle in Android Studio
This project does not use the Gradle build system. We recommend that you migrate to using the Gradle build system
Android Studio Import Project Error
Now let me talk about the problem. I've downloaded a zip file of GitHub project file to build on my laptop. The name of GitHub project is "VNCpp" As I'm not allowed to insert more than 2 links, I have given the project name so someone can search.
When I import this project into my android studio, it gives me this error : "Migrate Project to Gradle? This project does not use the Gradle build system. We recommend that you migrate to using the Gradle build system"
Edit: Android Studio has built in facility to import eclipse project and convert it into gradle build format. But in this case, it is not happening.
I'm getting 2 options while importing the project 1)Import from available sources and 2) Import from external model i.e gradle
When I select Import using external model it shows error like in this image:
gradle path error
And when I select Import from existing sources it creates some file system that doesn't have gradle structure. So I cannot edit and build the app on studio :
File system without gradle structure
What should I do now to properly import the project ?

I solved this problem after reading carefully [the documentation(https://developer.android.com/studio/intro/migrate.html).
Clone the project from GitHub
Close all Android Studio projects.
From the Android Studio welcome screen, click Import Project (Eclipse ADT, Gradle etc).
Select the project folder with the AndroidManifest.xml file
Click ok.

Importing an app-compat v7 library eclipse project to android studio

I have an Android application created in Eclipse, now I want to import it to Android studio, when I import project I get the following error
Project FinalProject Integrate:/home/vishal/Android_Workspace/FinalProject Integrate/project.properties:
Library reference ../android-support-v7-appcompat could not be found
Path is /home/vishal/Android_Workspace/FinalProject Integrate/../android-support-v7-appcompat which resolves to /home/vishal/Android_Workspace/android-support-v7-appcompat
and it is an unrecoverable error.

Here's what I did: In the the project.properties file I deleted all dependencies, and while importing project in Android studio I simply followed the instructions (making sure the check box are ticked, especially the one that says add any dependency). And it worked.

Edit your build.gradle, remove the dependency of project appcompat-v7
In Android studio, Go to main menu, File -> Project structure -> Dependencies, click add icon on the right side, and add appcompat-v7 as a library dependency.

Try this: Go down to the folder where the workspace and there copy the project to another folder, then open the Android studio as administrator and try again.

Run Facebook SDK sample apps in Android Studio

Novice question.
What is the recommended way to run the sample apps, included in the Facebook SDK, in Android Studio (0.8.6)?
The ideal answer would include step-by-step instructions.

I'm using Android Studio version 0.8.0, and Facebook SDK 3.18.
When I tried to open a sample as a separate project, it can't find Gradle and wasn't able to run it. However, when I imported /samples folder as a root, all sample projects were imported and was able to run each samples.
File > Import Project > Select FACEBOOK_SDK_PATH/samples > OK > Create project from existing sources
and then, click next/ok as Android Studio's default setting.
Hope it helps!

Suposing you already downloaded and unzipped the SDK.
Create your android project. Gradle based.
File -> Import Module. Navigate to the unzipped folder and select the unzipped folder.
Add the library dependency in your main module (the one created with your project) adding this line in your build.gradle:
Synchonize project.
If you want to continue creating your own app, you might add the dependency module build.gradle file:
android {
dependencies {
compile project (':facebook')
}
}

No gradle file shown while importing project in android studio 0.5.2

I want to import existing project into android studio 0.5.2 . When i select import project and go to the project it displays the build.gradle file along with project tree . following is the screenshot:
But when i select project it asks me to give link to the gradle home and when i give it manually it gives me error-"location not correct" and i don't get build.gradle file there for selection.(In this case the above build.gradle) file is not shown.How can i make it work??

Create a new project and copy directory 'gradle' from it to your project's directory.

Sorry it was my mistake .Hope it helps others with the same problem .
First of all you have to select the build.gradle file and not the project while importing into android studio and for the gradle home you have to give the location of the installed gradle file in my case it was c:\androidstudio\plugins\gradle.
Also do not forget to change the gradle version and sdk build tools version in build.gradle file and change version of gradle in wrapper-properties.

Being told project is not using the gradle build system when it is

When I open my project in Android Studio, I always get this.
Back when Android Studio first came out, I went through this process so the project should have the Gradle build system. There is a build.gradle file in the root of the project.
I can still build and run the project, but I don't understand why it always says this since the project should use gradle build system. Any help with this would be great.

The android studio support two "build mode". one is "legacy" and one is "gradle based". If you are using an very early version of android studio, probably you are still using the legacy build mode. You need to re-import your project using "gradle mode" then this warning will be gone.
To do so, select "file/import project", select your project root directory, and in the next dialog choose "Import project from external model" and select gradle. Then, you may choose "gradle wrapper" or use your own gradle distribution (1.8 for now[12/2013]).

This link can help, https://developer.android.com/studio/intro/migrate.html
Import as a Project:
Start Android Studio and close any open Android Studio projects.
From the Android Studio menu click File > New > Import Project.
Alternatively, from the Welcome screen, click Import project (Eclipse ADT, Gradle, etc.).
Select the Eclipse ADT project folder with the AndroidManifest.xml file and click Ok.

i know this is an old question but is still valid with newer versions of AS.
If you try to import and import againa and still have the same issue, check if there's a gradle.build file on the root directory, if there's not just create one.
In my case I had to migrate an old project to the new version because with the 0.4.4+ version it stopped recognizing it, and it kept failing, and that was the problem.
Curious thing is the top level build.gradle file just contains this comment:
// Top-level build file where you can add configuration options common to all sub-projects/modules.

I fixed this issue with the following steps:
Make sure that the following two files are in your project directory. If not, create a new one with reference of your other Android projects. These are default auto-generated files.
settings.gradle
build.gradle
If it is still showing any errors when you open your project, restart your project by selecting file/(invalidate /restart).

import Project
File --> New -->import Project

In my case the the problem was that studio version I am using does not support the gradle version of file, so in build.gradle I had to change the gradle version to 2.3.0 and everything is smooth now