Why Unhandled Exception?

Former Member over 5 years ago

Hi,

Why I am getting an Unhandled Exception error message on this code?

if (Weather.getCurrentConditions() != null) {
vTemperature = Weather.getCurrentConditions().temperature;
if (deviceSettings.paceUnits != 0) { // UNIT_METRIC = 0
vTemperature = ((vTemperature * 1.8).toNumber() + 32); } <======== Error on this line
}

VTemperature is declared as hidden var vTemperature = 0;

Why I am getting this error message? Thanks in advance,

Kurev over 5 years ago

Perhaps: ((vTemperature.toNumber() * 1.8) + 32) ?

Kurev over 5 years ago

Or can getCurrentConditions().temperature be null?

jim_m_58 over 5 years ago

Ok, first of all, you want to do a check based on

if(Toybox has :Weather) {}

as it's only available on devices with CIQ 3.2, and then, not all devices with CIQ 3.2.

then, before using anything in getCurrentConditions(), you want to make sure that's not null. It will be null when you first turn on a device

So,

var cc=Weather.getCurrentConditions();

if(cc!=null) {}

And then, any value in cc can be null, so you want to check that too

var temp=cc.temperature;

if(temp!=null) {}