Android Studio, R is error, can not resolved

Question

I updated Android Studio to have 2.2 version. Unfortunately, I got this error (R is in red color) I reinstall Android studio but no change.. R still in red color

I did not even write any code

syn gradle

Error:Failed to resolve: org.hamcrest:hamcrest-core:1.1
<a href="openFile:C:/Users/MainUser/Desktop/LastTry/app/build.gradle">Open File</a><br><a href="open.dependency.in.project.structure">Show in Project Structure dialog</a>


Error:Failed to resolve: javax.inject:javax.inject:1
<a href="openFile:C:/Users/MainUser/Desktop/LastTry/app/build.gradle">Open File</a><br><a href="open.dependency.in.project.structure">Show in Project Structure dialog</a>

Error:Failed to resolve: com.google.code.findbugs:jsr305:2.0.1
<a href="openFile:C:/Users/MainUser/Desktop/LastTry/app/build.gradle">Open File</a><br><a href="open.dependency.in.project.structure">Show in Project Structure dialog</a>

Error:Failed to resolve: com.squareup:javawriter:2.1.1
<a href="openFile:C:/Users/MainUser/Desktop/LastTry/app/build.gradle">Open File</a><br><a href="open.dependency.in.project.structure">Show in Project Structure dialog</a>

please I need help

Clean and Rebuild the Project.

Murat Karagöz
– Murat Karagöz

2016-11-15 15:17:47 +00:00
Commented Nov 15, 2016 at 15:17 — Murat Karagöz
– Murat Karagöz, Commented Nov 15, 2016 at 15:17

Dominik Kunicki · Accepted Answer · 2017-01-12 22:17:45Z

1

I had exactly the same problem. Go to File->Project Structure->app->dependencies and remove all the dependencies except these:

com.android.support:appcompat-v7:25.1.0       Compile  
com.android.support:design:25.1.0             Compile  
junit:junit:4.12                              Test compile

This will change the dependencies structure under build.gradle.

Hope this works!!

edited Jan 12, 2017 at 22:17

Dominik Kunicki

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answered Jan 12, 2017 at 20:37

Rishu Kumar

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Comments

uma · Accepted Answer · 2016-11-15 15:21:49Z

0

This may caused, your build to not compatible with current version.so, Open your root build.gradle file and change Gradle version like this

Old version:

dependencies {
        classpath 'com.android.tools.build:gradle:1.3.0'
    }

New version:

dependencies {
        classpath 'com.android.tools.build:gradle:2.2.1'
    }

You can find further details ,For Gradle version compatibility see this.

answered Nov 15, 2016 at 15:21

uma

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1 Comment

uma Over a year ago

@MajazenـG are you clean and Rebuild the project Manually ?

Ricky B · Accepted Answer · 2017-04-04 22:26:48Z

0

This is a common error in android studio. I fix it by doing build - clean. That usually works BUT if it doesnt, save and exit AndStudio and then restart

answered Apr 4, 2017 at 22:26

Ricky B

32 bronze badges

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