R.layout is'nt recogized by the studio

Question

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

suddenly Risn't recognized, probably something I have done.

Can someone explain to me what does it mean the R.layout...? And what can I do to fix it?

Look at this answer : http://stackoverflow.com/questions/17421104/android-studio-marks-r-in-red-with-error-message-cannot-resolve-symbol-r-but — Abhinav Puri, Oct 24 '16 at 09:15
If `R` isn't recreated after a clean build there is maybe an error in one of the resource files. — Henry, Oct 24 '16 at 09:18
did you renamed ur package or did you renamed somthing in resource folder.. — Rissmon Suresh, Oct 24 '16 at 09:36

score 3 · Answer 1 · answered Oct 24 '16 at 09:30

3

Sometime if your xml file have some error, the studio will not auto generate the R.java

answered Oct 24 '16 at 09:30

yong.k

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score 1 · Accepted Answer · answered Oct 24 '16 at 09:18

1

Might be the problem because of some changes in layout..

Build-> Clean Project and then you will get build fail because of some error, then solve that error you will get appropriate result.

answered Oct 24 '16 at 09:18

Vijay

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score 1 · Answer 3 · answered Oct 24 '16 at 09:21

1

Restart the android studio. If doesn't work then it might be problem with theme.

answered Oct 24 '16 at 09:21

Ankur_009

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score 1 · Answer 4 · answered Oct 24 '16 at 09:37

First Rebuild your Gradle by doing this Build -> Rebuild Projects if that doesn't work. In your Project bar(left side of your screen), goto Gradle Scripts and double click on build.gradle file, inside that file check your dependencies if your have something similar to this compile 'com.android.support:appcompat-v7:24.2.1' there, if you don't have it just copy and paste this there and then rebuild your project.

score 1 · Answer 5 · answered Oct 24 '16 at 09:38

1

Maybe this may help,

Go to your manifest file, change the package name, and make a Project Clean.

answered Oct 24 '16 at 09:38

Rissmon Suresh

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R.layout is'nt recogized by the studio

5 Answers5