I am noticing the following warning in the console for my iOS app. Is this warning familiar to anyone and should I be concerned about it appearing in my console?
: dnssdclientstub:sdRef: CallbackwithError morebytes zero sdr
0x15e55520
It seems that it might be a warning that precedes an intermittent issue where my app will not resume after having been dormant in the background.
I see this log message in a file 'dnssd_clientstub.c', but I'm not directly including this file in my code and assume that it is something in the lower level networking codebase.
Here is a link to that file:
http://www.opensource.apple.com/source/mDNSResponder/mDNSResponder-320.10/mDNSShared/dnssd_clientstub.c
Thank you in advance for any info you can provide!
Related
Is there a way to parse iOS's log to a String at run time when it occurred? I need to parse a certain error log from UIKit and assert it at once when it appeared for debugging.
What we want to do is to parse the console for this error: This application is modifying the autolayout engine from a background thread after the engine was accessed from the main thread. This can lead to engine corruption and weird crashes. We've found and fixed the line that causes this error, but we need to prevent this for happening again. FYI, the culprit is a line that changes a constant of an Autolayout in a background thread. And unfortunately it is not recognized by the compiler as an error like when we do the same thing with UIButton or anything that is derived from UIView (which will give an error at compile time when we try putting it in a background thread).
After much googling for the answer, I've finally found the answer. I found this article:
So here's what I did:
Eavesdropping on stderr stream
Duplicate it into another string
Parse the string for "weird crashes"
If found, it will crash immediately (instead of still running the app and waiting for the app to crash at indefinite time)
Added a DEBUG guard so that this functionality doesn't get carried over to production
As you can see on the picture below I'm getting some errors in my code:
I have no clue why I'm getting these errors or what they mean and while they don't seem to do anything bad I would rather be able to get rid of them. So I'm asking if someone can tell me what they mean and how I would go around stopping them.
Here are the errors that are shown in the picture:
02:28:40.947 - Roact is not a valid member of CorePackages
02:28:40.949 - Requested module experienced an error while loading
02:28:40.950 - Requested module experienced an error while loading
02:28:40.953 - LocalizationPlugin is not a valid member of CorePackages
02:28:40.981 - LocalizationPlugin is not a valid member of CorePackages
Those errors are from scripts that are part of Roblox itself - you have no control over them and it's normal for them to have errors sometimes. Just ignore them.
The reason why you're getting these errors is because of the Roblox application you're using is using the same Lua engine Roblox uses to code their back-end. Basically, these errors are squawked out by the engine because of errors in Roblox's code. Now you can't fix this, but it doesn't really matter. To be honest, most of them just look like warnings, nothing to worry about. If you use Chrome Dev Tools on most websites you'll see console errors or warnings. They're nothing to worry about if they don't affect the functionality.
Edit: Other people might not get these errors as they may have a different version of the Roblox Lua Engine or their hardware/software may communicate better compared to yours.
I am trying to create a CNC machine and using GRBL 0.9i Firmware and universal g code sender. after creating the gcode in inkspace and sending the gcode to machine
,
I am getting error as following
An error was detected while sending 'M18': error: Unsupported command. Streaming has been paused.
**** Pausing file transfer. ****"
I am quite new to this and any help would be wonderful and greatly appreciated.
Thanks
Jaideep
GRBL does not support M18 (Spindle Orient) so you will need to remove all M18s from your program before running it. If you you can't prevent inkspace (I'm not familiar with it) from using that code you might have to use a text editor to replace all M18
I think my question is already asked, but I didn't find any topic about that.
When I try somme script with kivy, I have sometimes errors (such as undeclared variable, bad indentation...), but Qpython don't display them.
I lunch kivy with:
"#qpy:kivy"
and consequently, there is no console. A log is however present, but it's empty.
Is there a way to remedy this ?
Should I add a line to display error ?
Thanks
Simon
PS: The "print" command is also useful, but not working (no console). I think it's the same problem.
The newest 1.2.0 version had fixed this blank log issue.
What does the following error indicates
5/19/11 8:06:45 PM SpringBoard[9712] Error deserializing
wallpaper image: Error
Domain=CPBitmapErrorDomain Code=0 "The
operation couldn’t be completed.
(CPBitmapErrorDomain error 0 - No data
provided to
CPBitmapCreateImagesFromData)"
UserInfo=0x70b9c80 {NSDescription=No
data provided to
CPBitmapCreateImagesFromData}
Well, if you read the error message, it is telling you that a wallpaper was unable to be deserialised because no data was provided to the function named CPBitMapCreateImagesFromData. Pretty self explanitory.
Other than that, it sounds like you're either working on a jailbroken phone or trying to do things that aren't supported by the official iOS SDK - in which case my help ends here.
Or you're a user who is trying to understand why an image they set as a wallpaper isn't displaying and found their way to the iPad's console - in which case, this isn't the place to be asking.
This happened to me also, I think it's because most of the tutorials are written with an iphone in mind and I was using an iPad. I was working with an ipad and when following these tutorials i was getting this problem.
When you are creating the project I choose View based application. In the same wizard there's a combo box for 'iPhone' and 'iPad'.. If I leave that as iPhone then my application doesnt start in the simulator and I see the error you mention. If I set that to iPad then everything works fine.
I dont understand why that should make a difference tbh..
This happened to me, but only when I was not debugging, what happened was that in the dealloc function [super dealloc] was called at the top of the function rather than at the end. The "deserializing wallpaper" message is probably due to some sort of memory corruption that occurred since I had code after [super dealloc] trying to use pointers that were now garbage. I had NSZombie activated but it had no effect. Why this only crashed when I was not hooked up to the debugger is beyond me at the moment.
Thankfully this bug was fixed after a few diffs in source control, but initially I was pretty perplexed at the message and the fact that it was a bug where the debugger couldn't be used only induced more panic.
I'm sure you've long fixed your problem but I thought it'd be helpful to put this out there for others.