I get the warning message: “Signer certificate has expired”, when I build a sample app. (Hello World). I am thinking this warning is the clue to the problem I have in Google Play Developer Console in uploading the APK file (which complains about the date and the default setting.
Anyone have an idea how I fix this problem?
Thanks Wayne
Sorry for misspelling above.
It is Signer Certificate. I see that this issue has come up before. I am using a Mac and it has Java 1.6. I am wondering if people using Macs in general are successful at producing apps that run on an Android OS. mobile device.
Yes, people produce apps for Android all the time using 1.6 (JDK 6 as its more commonly known).
When you create your keystore, there is a time parameter --validity:
keytool -genkey -v -keystore mykeystore.keystore -alias aliasname -keyalg RSA _ -validity 999999 _
This is the number of days the keystore is good for. Now 999999 is over 2700 years away. But the default if you left it off is only 90 days. So it’s very possible that your keystore has expired. You can always use the command above to generate a new one. Change the mykeystore and the aliasname to something more appropriate for you. Keep in mind this will put the keystore file in the directory/folder you are in when you run the command. People tend to loose these because they don’t remember were they put them. You might want to use the “cd” command to change to a directory where your store all your keystores before running the keytool command from the terminal.
Thanks Rob, and the .apk is uploading for android in alpha mode. Sorry a little late, but of all things I had to pass a kidney stone 
Sorry for misspelling above.
It is Signer Certificate. I see that this issue has come up before. I am using a Mac and it has Java 1.6. I am wondering if people using Macs in general are successful at producing apps that run on an Android OS. mobile device.
Yes, people produce apps for Android all the time using 1.6 (JDK 6 as its more commonly known).
When you create your keystore, there is a time parameter --validity:
keytool -genkey -v -keystore mykeystore.keystore -alias aliasname -keyalg RSA _ -validity 999999 _
This is the number of days the keystore is good for. Now 999999 is over 2700 years away. But the default if you left it off is only 90 days. So it’s very possible that your keystore has expired. You can always use the command above to generate a new one. Change the mykeystore and the aliasname to something more appropriate for you. Keep in mind this will put the keystore file in the directory/folder you are in when you run the command. People tend to loose these because they don’t remember were they put them. You might want to use the “cd” command to change to a directory where your store all your keystores before running the keytool command from the terminal.
Thanks Rob, and the .apk is uploading for android in alpha mode. Sorry a little late, but of all things I had to pass a kidney stone