Catalyst 'SwiftUI.AccessibilityNode' is not a known serializable element - accessibility

I created a fresh iOS Single Page App (including SwiftUI) with Xcode 11.1 and enabled Mac Catalyst. After running the fresh Project on my Mac (macOS 10.15 of course) I get the following errors after tapping once on the window.
2019-10-18 12:59:48.479186+0200 test[3130:122148] Metal API Validation Enabled
2019-10-18 12:59:50.960734+0200 test[3130:122148] [AXRuntimeCommon] Unknown client: test
2019-10-18 12:59:50.962261+0200 test[3130:122148] [AXRuntimeCommon] This class 'SwiftUI.AccessibilityNode' is not a known serializable element and returning it as an accessibility element may lead to crashes
2019-10-18 12:59:51.313 test[3130:122148] **************_____________**************AXError: AVPlayerView is not a kind of NSView
1 AccessibilityBundles 0x00007fff42ee3b69 _AXBValidationCheckIsKindOfClass + 201
2019-10-18 12:59:51.386 test[3130:122148] **************_____________**************AXError: MKStarRatingView is not a kind of NSView
1 AccessibilityBundles 0x00007fff42ee3b69 _AXBValidationCheckIsKindOfClass + 201
Note: I also removed the Sandbox capability otherwise I get error about can't writing ApplicationAccessibilityEnabled
Does anyone know how to solve that?

As far as I can tell, there isn't a way to get rid of that error, and there isn't a need to; it's something inherent in SwiftUI. It occurs on iOS, iPadOS, and (therefore) Mac Catalyst, even in a brand new project. It also doesn't seem to hurt anything, other than to worry us developers.
I've been working in SwiftUI for the past six months full-time on an app that is now in production running on iOS, iPadOS and MacOS (Catalyst). The This class 'SwiftUI.AccessibilityNode' is not a known serializable element error has been there since the beginning. I haven't traced it to be the source of any problem in six months of SwiftUI development.
If you open Xcode, create a new single-view iOS project, and run it without change, it'll display "Hello, World!". Click "Hello, World!" and your console will log [AXRuntimeCommon] This class 'SwiftUI.AccessibilityNode' is not a known serializable element and returning it as an accessibility element may lead to crashes.
I've tried adding accessibility modifiers, e.g.:
struct ContentView: View {
var body: some View {
Text("Hello, World!")
.accessibility(hint: Text("Just say hi"))
.accessibility(identifier: "helloWorld")
}
}
The error still gets logged when I click "Hello, World!".
I've also tried extending SwiftUI.AccessibilityNode to make it a serializable element, e.g.:
import SwiftUI
extension SwiftUI.AccessibilityNode {
}
Xcode says type SwiftUI.AccessibilityNode doesn't exist.

If you find them annoying as I do you can silence them as mentioned in this answer:
Hide strange unwanted Xcode logs

Related

Got the "My test app isn't responding right now. Try again soon." error message even a clean start from Google Assistant Simulator

I am still quite new to this topic, so sorry if I didn't provide enough information.
For the first time, I copoed everything from https://developers.google.com/actions/dialogflow/first-app to learn about it, which works great.
After, I tried to create my own one, then at the end, I got this message "My test app isn't responding right now. Try again soon." from https://console.actions.google.com/project/[[PROJECT-ID]]/simulator/.
Therefore, I tried to delete everything and make a complete new start, including all the projects on https://console.actions.google.com/ and https://console.dialogflow.com.
I then copied the exact same thing from https://developers.google.com/actions/dialogflow/first-app again, but this time, I still got "My test app isn't responding right now. Try again soon." from https://console.actions.google.com/project/[[PROJECT-ID]]/simulator/.
I tried to look at firebase log, no error indeed
I tried to use the web demo from the integration tab, everything works (which means the server side code or the connection have no problem) as expected, firebase also logged the request.
I tried to use a different browser (chrome -> firefox) still not working.
Here is the response code from the Google Assistant Simulator (its kinda nothing):
{
"audioResponse": "//NExAARqQ...",
"conversationToken": "GidzaW11bG...",
"response": "My test app isn't responding right now. Try again soon.",
"visualResponse": {
"visualElements": []
}
}
And here is the debug message (yes, its nothing in there, so I'm stuck):
{
"agentToAssistantDebug": {},
"assistantToAgentDebug": {}
}
Any help would be appreciated. Thanks!
In Actions Console..
Go to Develop -> Invocation
Set a display name (Eg: Hello World) and click Save
Go to Test and type "Talk to Hello World"
Fixed the issue for me.
Make sure your Actions on Google project has a name.
I spent almost 2 days scratching my head on this. Just go to Activity controls of the relevant google account (The account that you are using for the simulator) and turn on all those switches (You may leave out Youtube related stuff).
And.....Voila, it works!
Usually, these are turned off for non-personal accounts.
Faced the same issue when I tried to change the language of app to a locale.
Try the following,
Check if the welcome intent and fallback intents have responses and training phrases
All contexts are mapped
Disable and enable testing
At least in my case, I've added 'Suggestions' for an ending scene, like below:
You can see the error on the right side log of 'Test' page:
Fix is to remove 'Suggestions' in ending scene.
I had the exact same issue and after struggling for hours I found the stupid error on my side: In my Dialogflow Agent settings, I accidentally turned on the V2 API. So my firebase function kept complaining about null intent. Hope this help.

Client doesn't have a name/class at startup

I'm trying to start an application (Spotify) on a particular tag. Rules aren't applied and now I'm inspecting the client class by printing the class in a notification in the "manage" signal. This results in an empty notification.
client.connect_signal("manage", function (c, startup)
naughty.notify({title=c.class})
end)
When I restart awesome, it does print the client class, so why isn't it working when the client is initially started?
Using xprop, it also prints the class:
WM_CLASS(STRING) = "spotify", "Spotify"
Sounds like a bug in Spotify (and I think I heard about this one before). I would guess that Spotify does not follow ICCCM and only sets its WM_CLASS property after it made its window visible and not before.
I fear that you cannot do much about this except for complaining to Spotify devs to fix their stuff.
You could work around this by starting a timer in the manage signal that checks if a window turns out to be spotify a short time later. Alternatively, you could do something like client.connect_signal("property::class", function(c) if c.class == "Spotify" then print("This is now a spotify window") end end) to react to change to a window's class (of course you'd want to do something more useful to Spotify's windows than printing them).
(Per the ICCCM, a window is not allowed to change its class while it is visible, but who cares about standards...)
I had a similar issue with the claws-mail client. Inspecting it via xprop, it shows
WM_CLASS(STRING) = "claws-mail", "Claws-mail"
but awesome just did’t apply the rules for it. The trick was giving awesome-wm both of these class names in the rules section by providing a set of characters to chose from:
rule = {class = "[Cc]laws%-mail"}
I hope this works for your spotify application, too.
For further reading about patterns in lua I suggest this:
https://www.lua.org/pil/20.2.html

ASP.Net page not updating - Literally the same screen from earlier (as if back was selected)

I have an ASP.Net application that accesses user data from a SQL database.
Visual Studio Version 2012
Windows Server 2012 Standard 6.2
Sql Server 2012
Program in Service since 11/2007 (with problem having never happened previously)
Problem:
First reported by 2 of my customers but I was not experiencing the problem until after a recent MS update.
Unsure of the particulars of those updates or whether it was only a coincident.
Log into application and go around to a few pages, all seems ok, than I select a new Active Company (auto filters list screens by Active Company ID from a session variable, changing active company changes the ID stored in the session variable), everything works fine for a while (1 - 4 mins) switching between screens and even different active companies, than at one point I go to a page that I've been to several times (that worked fine) and it shows everything from the last time I accessed it (literally the identical page from a few mins ago). I change to another page and it appears to be updated, go back to the screen that did not update and it no matter what, will not update again. I query the database and it is indicating the correct active company ID and query the session variable and that too is correct.
** The strange thing is I can wait 4 -5 mins (I just stop doing anything) and than try to access the page again and now it updates.
I have been beating at this now for almost 2 weeks and have not been able to determine to source of the problem.
I literally have tried every settings for session caching I could read up on with no (or minimal) affect.
Since our software utilizes session variables to hold user variables to control their environment (like active company selection), I went to go as far as removing the session variables and making the profile.variables (requiring Sql Session management) with minimal affect).
It seems to work fine for a few minutes (or page accesses) than once it stops updating the page, it will no longer update under any circumstance.
It will occur on pretty much any combination of page changes (after changing the active company, since it will actually change data displayed).
This design has been out in the field for over 8 years now (and is routinely brought up-to-date with the latest dot.net compiler updates, .net framework and IronSpeed Designer engine updates. This error has never occurred before now. No update to the development tools took place prior to the appearance of this issue.
I tried various tests.
Test 1:
I added java code to reset each page.
<script type="text/javascript">
function RefreshPage()
{
window.location.reload()
}
</script>
Result: No change
Test 2:
I stopped as soon as the page did not refresh and started timing when the page would update (1 -2 mins or going back and forth between the change active company and the reports screen several times)
Result:
After 60 - 90 secs, the current page seemed to do an update (the activity icon would appear than go away) so I would than check the page the was not refreshing and it was now correct.
Since I was using the report page for my tests, I would run a report when the screen update failed, to see what active company it thought it was on (since it was also reliant on the session variable, it was bringing up the correct report data, even though the page was not indicating the correct active company. Note: Every one of our screens indicate the current user and active company name at the top, so it is easy to see when it is not updating.
Any direction as to where to look from here would be greatly appreciated, I'm at a lost as to what to check now.
P.S. I installed MS Message Analyzer and had it monitor up to the point where I get a failure. I have never user MS MA before so I don't have much of an idea as to what to look for, other than the operation status was indicating Found (302) for the Get and Post and Ok (200) for the page I received the problem for.
Thanks in advanced!
John R
I propose to check caching options. I mean caching of page, controls, javascript, and browser. As workaround I propose to add some empty paramether to your page, ajax calls. For example instead opening "default.aspx" open "default.aspx?id=someNewGoid". Also consider adding some random paramethers to your ajax calls.
Try following coe for refresh:
<script type="text/javascript">
function S4() {
return (((1+Math.random())*0x10000)|0).toString(16).substring(1);
}
function guid()
{
var guid = (S4() + S4() + "-" + S4() + "-4" + S4().substr(0,3) + "-" + S4() + "-" + S4() + S4() + S4()).toLowerCase();
return guid;
}
function RefreshPage()
{
var url = window.location;
if (url.indexOf("?")>-1){
url = url.substr(0,url.indexOf("?"));
}//this par will cut of additional paramthers
window.location = url + "?id=" + guid();
window.location.reload()
}
</script>

PyQt5 QtMultimedia

So I'm trying to create a GUI that searches a dictionary for a word, returns the entries and suggestions and downloads the audio, returning "related words" (sometimes more than one) that have audio. Then, the user clicks on one of three buttons to play the audio, based on the dialect. I can get the words to play, but I can't get the last played one to close so I can download another.
Here is the relevant code:
#staticmethod
def munster():
""" This method plays the Munster recording, if it exists"""
url = QtCore.QUrl.fromLocalFile("./CanM.mp3")
content = QtMultimedia.QMediaContent(url)
player = QtMultimedia.QMediaPlayer()
player.setMedia(content)
player.play()
player.stateChanged(app.quit)
When it gets to the last line it gives me this error:
TypeError: native Qt signal is not callable
Is there any way to close the player to allow downloading of another audio file with the same name?
For the record, I'm using the latest release of PyQt5, and Qt5.4 on Python 3.4 with Windows 81. However, I'm also working on this project (with the same Qt and PyQt) on an Archlinux system as well, and would like it to be portable easily.
Edit: Quite easy, once I started looking at what all was contained within the Player class. Just needed to use the disconnect method.
Edit2: Edited to show complete working code
#staticmethod
def play_audio(dialect):
file_names = {'Munster': './CanM.mp3', 'Connacht': './CanC.mp3', 'Ulster': './CanU.mp3'}
url = QtCore.QUrl.fromLocalFile(os.path.abspath(file_names[dialect]))
content = QtMultimedia.QMediaContent(url)
player = QtMultimedia.QMediaPlayer()
player.setMedia(content)
player.play()
player.stateChanged.connect(lambda: player.disconnect())

Altbeacon library not working on Android 5.0

Yesterday I got the update for Android 5.0 on my Nexus 4, and the altbeacon library stopped detecting beacons. It appears that didEnterRegion and didRangeBeaconsInRegion are not even getting called when monitoring and ranging, respectively.
Even the Locate app from Radius Networks behaves differently now, the values from beacons, once they are detected, doesn't get updated anymore and often it appears as if the beacons went out of range.
One thing I noted differently, is that now in the logcat it appears the following line "BluetoothLeScanner﹕ could not find callback wrapper". I went ahead and looked for that class and saw that it was introduced with Android L, but I don't know if that has something to do with it.
It's important to say that before the update I had been working with both the Locate app and the Reference Application without any trouble.
I don't know if this is a generalized problem or not, but if it happened to me I'm sure it could happen to someone else, so any help it would really be appreciated.
Thanks in advance!
UPDATE:
After failing at getting the library to work I decided to try the Android L branch of the library. What I did was that I plugged in the new library into the Reference App, but didn't work as expected either.
The Monitor Activity seems to be working ok by notifying when the device has entered a new region. However, the Ranging Activity doesn't report any beacons, although didRangeBeaconsInRegion is getting called, always report zero beacons. Curiously, when the activity is paused (switching momentarily to another app) the logcat shows that now didRangeBeaconsInRegion does get called with actual beacons.
I'm kind of stuck right now because I don't know how to get any of libraries working on Android L, so again, any help would really be appreciated.
I'm using the latest Altbeacon build on 5.0+ and have no problem with it. in fact, I never used it on kitkat so i'm not really sure i can help but here is my working code which listen to iBeacons.
implement beaconConsumer:
public class MainActivity implements BeaconConsumer
init BeaconManager
beaconManager = BeaconManager.getInstanceForApplication(this);
if (beaconManager != null && !beaconManager.isBound(this)) {
beaconManager.getBeaconParsers().add(new BeaconParser().
setBeaconLayout("m:0-3=4c000215,i:4-19,i:20-21,i:22-23,p:24-24"));
beaconManager.bind(this);
}
onConnect and start listner
#Override
public void onBeaconServiceConnect() {
beaconManager.setRangeNotifier(new RangeNotifier() {
#Override
public void didRangeBeaconsInRegion(Collection<Beacon> beacons, Region region) {
if (beacons.size() > 0) {
Beacon firstBeacon = beacons.iterator().next();
}
}
});
beaconManager.startRangingBeaconsInRegion(new Region("com.example.app", null, null, null));
}
this code is working on 3 devices
Nexus 4 5.0.1
Samsung Galaxy s4 - Stock 5.0.1
Samsung Galaxy s4 - CM12 5.1.1
Old question, but maybe some people will try to find answer for higher systems where you have to ask for permissions. You need to ask for Manifest.permission.ACCESS_FINE_LOCATION before scanning. At least that was the problem I met. In my opinion lib should crash such cases at least and indicate the problem

Resources