.apk file upload error

When i upload my .apk file it gives this error

The certificate that signed this apk 开发者_如何学Cis not valid until the future. Create a new certificate.

Thanks

I had the same Problem! And my system time was in the futur! So i only need to wait some minutes

Create a new certificate/sign key, your old one has probably expired (when creating a key, you can usually set it's expiration date).

See http://developer.android.com/guide/publishing/app-signing.html how to create your own key other than the default debug key.

make a keystore that has more than 20 years validity ..say 100 years it will do the rest..

just wait for some time after creating your apk and then try to upload it. then the error wont appear.