I have updated Android API to 23 and there is no error in any xml file but when I try to build project this shows R cannot be resolved

Question

I had update latest Android API i.e. 23 and its build tools also and when I want to try with this API and build my android project it shows R symbol cannot be resolved.

So, please help me regarding this and I also want to use org.apache.http for HTTPResponse class so which jar I have to use , please tell me regarding this also.

I have tried all the tricks like build and clean the project and close the project and reopen again and I verified also that there is no error in xml file also.

refer http://stackoverflow.com/questions/17421104/android-studio-marks-r-in-red-with-error-message-cannot-resolve-symbol-r-but — sasikumar, Sep 07 '15 at 07:03
I have checked it but in his case built has been succeeded but in my case build also fails. — Varnit Khandelwal, Sep 07 '15 at 07:09
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/88980/discussion-between-varnit-khandelwal-and-sasikumar). — Varnit Khandelwal, Sep 07 '15 at 07:24
Yes this I know this is not for API 23 as I changed it and try to build with API 21 but then also I got the same error — Varnit Khandelwal, Sep 07 '15 at 07:36
Try changing `compileSdkVersion` to `23` and clean your project. — Jared Rummler, Sep 07 '15 at 07:41

score 2 · Answer 1 · answered Sep 07 '15 at 08:45

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In addition to previous answers. I see a lot of classes from apache lib: HttpPost, BasicNameValuePair and others. That was removed in M.

answered Sep 07 '15 at 08:45

Viktor Yakunin

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But then If I want use these classes in Android M then how can I use. – Varnit Khandelwal Sep 07 '15 at 10:34
follow this http://stackoverflow.com/questions/31653002/how-to-use-the-legacy-apache-http-client-on-android-m – Viktor Yakunin Sep 07 '15 at 11:53
@VarnitKhandelwal For my project I was forced to migrate to OkHttp library, because all of the solutions provided didn't work – Viktor Yakunin Sep 07 '15 at 11:55
how to migrate to OkHttp library can you please help me. – Varnit Khandelwal Sep 08 '15 at 04:57
They use this in license vending, have they upgraded this to for M? – powder366 Sep 11 '15 at 15:01

score 1 · Answer 2 · edited May 23 '17 at 11:59

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Here is similar question. Your problem is not in R cannot be resolved. Problem is in the org.apache.http package which was removed in SDK 23.

edited May 23 '17 at 11:59

Community

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answered Sep 11 '15 at 08:41

Volodymyr

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score 0 · Answer 3 · answered Sep 07 '15 at 07:38

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change your buildToolsVersion 22.0.1

again your compile version is lower than targeted version

answered Sep 07 '15 at 07:38

vaibhav

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score 0 · Answer 4 · answered Sep 07 '15 at 07:53

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Usually when this error occurs the general solution is Clean your project and if still an error reapeats close the Eclipse once and reopen it.

That way my same problem got sloved.... :)

answered Sep 07 '15 at 07:53

Jyo the Whiff

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I have updated Android API to 23 and there is no error in any xml file but when I try to build project this shows R cannot be resolved

4 Answers4

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