WM24

Hey, my friends.

I have a windev mobile app that runs on 2 tablets
Both tablets run Android 7.1.1.

On one tablet I get this error.
Does anyone have any idea what this could be?

===== Error =====
Date and time=06/01/2021 09:43:24
Message=Internal error.
System message=Unable to add window -- token android.os.BinderProxy@b197be9 is not valid; is your activity running?
Process=Left-clicking WIN_SychNaarDevice.BTN_START
WLanguage stack=Left-clicking WIN_SychNaarDevice.BTN_START
Java stack=android.view.ViewRootImpl.setView(ViewRootImpl.java:922)
android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:377)
android.view.WindowManagerImpl.addView(WindowManagerImpl.java:105)

Hi jtadebruin,

Some code or a bit more explanation of what you are doing would help us to help you, like; what are you doing in your btn_start code? You might be trying to reference something that doesn't exist any more?

From stackoverflow:

Unable to add window -- token is not valid; is your activity running?

This crash is usually caused by your app trying to display a dialog using a previously-finished Activity as a context. For example, this can happen if an Activity triggers an AsyncTask that tries to display a dialog when it is finished, but the user navigates back from the Activity before the task is completed.

Regards,
Darren.

Hi Darren,

You're absolutely right !!!

More information would be desirable but at that time I didn't have time for that.

On one screen I give several instructions to synchronize data.
Each instruction must show text in the form of:
Synchronize data Count = x from y.
This must be shown on the screen where the instructions are given.
Already at the first instruction I get the error message

I want to give a control as a parameter to a global procedure , so the procedure can show the progress


Jan