Android - Google Play zero supported android devices

        Hi everyone, i've get stuck about Google Play my latest App, it's very very moody. How you feel if no error no warning installable and anything work fine!!!? what's the problem about "0 supported android devices" WTH!! but now today i can solved it this stupid issue...

Google Play Store - Play icon on Chrome product menu not active (grey color)

Google Play Store - Play icon on Chrome product menu not active (grey color)

Test on:
Mac OSX Maverick.
Chrome 40.0

[Issue]
If you already be google play developer, google play store icon should be active but if you
found on top-right menu on your chrome browser like this. It has problem about language setting of chrome on search page.

[Solved]
see bottom search text field and click to switch your language, for sample

"Google.co.th offered in: English" to be "Google.co.th offered in: ภาษาไทย".

now your google play store icon will be active as below image.

It's work.

Google Play Store‎ - Unity3d apk : Upload failed You uploaded an APK signed with a certificate that is not yet valid.

Google Play Store‎ - Unity3d apk : Upload failed You uploaded an APK signed with a certificate that is not yet valid.

Test environment:
1. Mac OS X 10.9.4,
2. Unity3d
3. Android SDK

[Error]
Upload failed
You uploaded an APK signed with a certificate that is not yet valid. You need to sign your APK with a certificate that is currently valid.

[Solved]
1. change your mac date & time to previous date or previous week.
*for example, if your machine current date is 30/12/2014. change it to 29/12/2014.

2. use unity3d create new .keystore and build apk file then upload apk to google play store.

It's work!.

[How is this happen?]
1. change your mac date & time to next date or next week is enough.
2. use unity3d create new .keystore and build apk file then upload apk to google play store.

Have fun.