App with API 6.4.2 doesn't start since firmware 16.22 anymore

The simulator doesn't has that bug. When you load the *.prg file of the bin-folder into the watch you may check the functionallity of your app. Or load a beta-version into the garmin app-store.

When I write code, I always declare all global variables at one place. So the following changes where easyly and quickly to do for me.
I put all global variables into the *.app file: after the "import"-declarations and before the class in the format:

import Toybox.Something;

public var foo1;
public var foo2;
public var ...

class MyApp extends Application.AppBase {
...

I've done that workaround with all global vars that declare objects and arrays. (by the way: the declaraton of primitives global vars still works well).
Within the class inside of "function initialize()" I gave the variables the correct global format and initilal content:

  function initialize() {
    AppBase.initialize();
    foo1 = {
        :item1 => new Object(),
        :item2 => 123.45,
        :item3 => "Hello World"
    foo2 = new Bar();
    ...
  }

With that changes my app works properly again - no problems anymore. There's no need of further checks for null or castings.

Greetings, Judex

The simulator doesn't has that bug. When you load the *.prg file of the bin-folder into the watch you may check the functionallity of your app. Or load a beta-version into the garmin app-store.

When I write code, I always declare all global variables at one place. So the following changes where easyly and quickly to do for me.
I put all global variables into the *.app file: after the "import"-declarations and before the class in the format:

import Toybox.Something;

public var foo1;
public var foo2;
public var ...

class MyApp extends Application.AppBase {
...

I've done that workaround with all global vars that declare objects and arrays. (by the way: the declaraton of primitives global vars still works well).
Within the class inside of "function initialize()" I gave the variables the correct global format and initilal content:

  function initialize() {
    AppBase.initialize();
    foo1 = {
        :item1 => new Object(),
        :item2 => 123.45,
        :item3 => "Hello World"
    foo2 = new Bar();
    ...
  }

With that changes my app works properly again - no problems anymore. There's no need of further checks for null or castings.

Greetings, Judex