Problem with run my first android program

Question

I'm new for android. I try to write HelloAnroid but when I run the program, there are two errors.

1. Unable to open class file C:\Documents and Settings\Administrator\workspace\HelloAndroid\gen\com\example\helloandroid\R.java: No such file or directory
2. Error generating final archive: Debug Certificate expired on 22/11/2497, 2:29 น.

I don't know why it happens. please help me with these errors.

That second error happened to me too. You have to go into where Eclipse stores the Debug certificate and delete it. When you try to build again, Eclipse should generate a new, valid certificate. — Brandon
– Brandon, Commented Dec 4, 2010 at 21:51

Community · Accepted Answer · 2017-05-23 12:04:14Z

2

You might see the answer here and as for "Error generating ..." see the answer here.

edited May 23, 2017 at 12:04

CommunityBot

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answered Dec 4, 2010 at 22:23

StanislavK

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Simon · Accepted Answer · 2010-12-04 21:23:16Z

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You need to compile the build and make sure your SDK is setup properly.

answered Dec 4, 2010 at 21:23

Simon

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Jithin · Accepted Answer · 2010-12-05 18:12:31Z

0

right click the project . go to properties.select java build path.click on the android sdk version.

answered Dec 5, 2010 at 18:12

Jithin

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