R.java does not contain class id

Question

the line username = (EditText) findViewById(R.id.editText1); is generating error editText1 cannot be resolved or it is not a field.how to solve this

I believe this is auto generated code. – Tim Biegeleisen Dec 23 '15 at 07:08 — Tim Biegeleisen, Dec 23 '15 at 07:08

score 2 · Answer 1 · edited May 23 '17 at 12:15

Android R.java is an auto-generated file by aapt (Android Asset Packaging Tool) that contains resource IDs for all the resources of res/ directory.

Clean-Rebuild-Remove gen Folder-Restart

If you somehow hit something and created import android.R in your activity, remove it.
Run Project -> Clean. This will delete and regenerate R and BuildConfig.
Make sure Project -> Build Automatically is ticked. If not, build it manually via Menu -> Project -> Build Project .

Developing for Android in Eclipse: R.java not regenerating

score 1 · Answer 2 · answered Dec 23 '15 at 07:11

1

R.java is auto generated code. Please delete your gen (in eclipse) folder and try re-build the app.

answered Dec 23 '15 at 07:11

Zumry Mohamed

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i watched tutorials and in those tutorials R.java file was not as long as my eclipse generates. – cute programmer Dec 23 '15 at 07:40
What are the tutorials ? R.java file keep resource related information. once the resouces changes it will re-generate with changes. There are two kind of R files . Android has a inbuilt R file for their ids. – Zumry Mohamed Dec 23 '15 at 07:43

R.java does not contain class id

2 Answers2