android studio showing errors to R

Question

In every project, there is a gradle error with R. R is red and build is failed. I haven't used any images in my project.

error is like this:

My gradle is:

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.2.3'
    }
}
allprojects {
    repositories {
        jcenter()
    }
}
task clean(type: Delete) {
    delete rootProject.buildDir
}

Possible duplicate of [R cannot be resolved - Android error](http://stackoverflow.com/questions/885009/r-cannot-be-resolved-android-error) — Al Lelopath, Feb 09 '17 at 18:51
Have you made any changes to your application's package name recently? Sometimes, this can cause a problem if your R file has a different package name than your java file. — Epicality, Feb 09 '17 at 18:52

score 0 · Answer 1 · answered Feb 09 '17 at 18:53

0

Either you might be having some issues with any of the xml files or you may import 'R' with your applications package name if you have resources.

answered Feb 09 '17 at 18:53

Jose Jithin Stanly

376
3
9

score 0 · Answer 2 · edited May 23 '17 at 12:09

0

Add below lines in your build.gradle file:

dexOptions {
    javaMaxHeapSize "4g"
}

Android Studio Google JAR file causing GC overhead limit exceeded error

edited May 23 '17 at 12:09

Community

1
1

answered Feb 09 '17 at 18:59

Ashish Kudale

1,132
1
22
45

after adding this it is saying: Error:(25, 1) A problem occurred evaluating root project 'Addition'. > Could not find method dexOptions() for arguments [build_3x5agyw9liwk00axdmp8pbnxs$_run_closure3@3b16563f] on root project 'Addition' of type org.gradle.api.Project. – Aishwarya Feb 09 '17 at 19:06

score 0 · Answer 3 · answered Feb 09 '17 at 19:14

0

Simply clean/rebuild the project and invalidate caches restart

answered Feb 09 '17 at 19:14

score 0 · Answer 4 · answered Feb 09 '17 at 19:22

0

I think gradle is not importing all the packages remove the gradle and add new one with same version.

answered Feb 09 '17 at 19:22

Anmol Nijhawan

825
1
7
14

android studio showing errors to R

4 Answers4