Hello World...Application not installed?

[GeorgeArnolds]

Hello,
I decided to make my very first app with LiveCode and followed the tutorial for complete beginners.
Everything worked fine - the app was running in LiveCode, I did the Standalone App settings to Deploy on an Android device and saved my app as ''hello.apk''.
Then I copied ''hello.apk'' to my HTC Desire C and tried to install it, but it gives me an error - ''Application not istalled''
I don't know what to do now. I have turned on USB debugging mode, also checked ''Install from unknown sources''.
Could someone please tell what is wrong and how to fix it to install my app successfully on my device.
Thanks in advance.

[Simon]

Do you have the HTC show up as a Test Target in the Development menu?
If you can, that will act as an installer. No need to make a standalone.

Other: Did you build your self signing key?

Simon

[GeorgeArnolds]

I have set up my HTC, but I haven't built my signin key. What exatcly should I do to build the key?
Thank you

[Simon]

Here are the instructions:
http://lessons.runrev.com/m/4069
"How do I Create a Self-Signed Certificate for an Android App?"

Simon

[jacque]

You shouldn't need a signed key if you set the standalone builder to build for development in the Android pane.