Timer: interval must be larger than 0

[Bergum]

Sometimes i get error: "interval must be larger than 0" then change enable property of timer object.

Timer is initialized in first line of Activity_Create event only then FirstTime is true.

I'm using Android 4.0 on real device.

Can You help me?

Thank

My mistake.
I declare timer in Globals and not in Process_Globals like page 185 beginner manual say.
Sorry