IONIC only - OS Simulator 'DANG! failed to start'

[CharliesGal]

When I try to test an app for IONIC in the OS Simulator

I get the message 'DANG! failed to start'

If I switch to VERSA then the OS Simulator works fine. 

[Krish_2009]

Sometimes when your clock or app is doing too much, it causes app/simulator to crash when you run. You'll need to debug your code to see where the problem is. I had the same problem and I needed to debug it. 🙂

[BingRen]

If you are using Linux, try this:

npx fitbit-sim-starter

You need docker, node.js and npm to run this.

For more information, see https://www.npmjs.com/package/fitbit-sim-starter

[BingRen]

You can check the logs under

c:/users/your_user/Application Data/Fitbit OS Simulator

You can also empty this folder and restart the simulator, see if this solves the problem. Simulator will recreate the folder if it's missing.

[BingRen]

You can also try to load the empty app after creating a new project, and see if it causes the DANG!. Then you add your app piece by piece, try to find what might caused the simulator to crash...