.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.