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[Karri Weston]

I'm having the same issue, but on an iPad (Pro 10.5"). iPad OS is up to date (14.3). I have tried restarting, a forced restart, accessing on different WiFi networks (no other issues with network connectivity), and I have completely wiped and reset the iPad. Still get the same error code when trying to stream from Apple Music (same error if it is a song or album I have previously downloaded, or something new that I have not) - "operation could not be completed - an unknown error occurred (185279029)"

There are two errors we're seeing regularly (though rarely; most playbacks succeed but every day a few of these errors occur), both of which are unknown. Both errors occur when calling [AVAssetResourceLoadingRequest streamingContentKeyRequestDataForApp:contentIdentifier:options:error:], and the underlying error codes are -16834 and -12640.

Are there any hints as to what could be causing these errors when trying to stream a FairPlay video? I've already read the "Re: Fairplay SPC returning nil" thread, but I don't think it's really applicable because our playlists contain EXT-X-KEY (and most of our playbacks succeed).

Yes, we're seeing these errors from active users of our app, but their devices aren't (necessarily) JailBroken. I've managed to reproduce this issue on my iPhone 6 (running iOS 9.1) which is definitely not JailBroken. Unfortunately when I was able to reproduce this last year I couldn't find a root cause, and now I'm no longer able to reproduce it locally on my device, even though we still get regular reports of users encountering this error.

Well i managed to fix that error on my side. I cannot really say what i did that helped (since i was doing a lot) but i did the following steps:
Added all properties to m3u8 that were used by apple demo.

I found out that error -12640 had something to do with bad m3u8. Not bad as in corrupted, but bad as in not using the required properties. In my case, i used everything except KEYFORMAT property (because i found in some docs that it is optional. It isn't).

Just encountered this error message "Close HBOMax An unknown problem occurred. Please contact your TV provider." I was trying to watch a series, and the screen asked me to create a password for HBOMax which I did. Then when I tried to watch the series, it gave me the error message above. I re-started the router, and updated the Roku software and still no luck.

HBO Max worked fine when I was subscribed thru Amazon Prime which they stopped the service for. So I then subscribed thru ROKU TV, and it wont work, It says unknown error has occurred please contact your TV provider. Tried all the suggested fixes, nothing worked so far. The only part that functioned is that they took my money.

I am happy to hear that I am not the only one having this issue. Since those who purchased outside of Roku seem to be okay, this definitely seems like a Roku issue. Like all of you, I created a password and purchased it through Roku after my Amazon Prime membership ended. I have been getting the same error no matter how many of the troubleshooting steps I try. Obviously, since I purchased it through Roku and have an active subscription, deleting the app and downloading it again isn't an option.

If you're only experiencing the issue on HBO Max while other channels play fine, contact the channel provider's customer support team to report the issue and get help. Channels on Roku are maintained by the channel developer themselves. In this case, there's likely an issue within that specific channel that needs to be addressed with an update from the channel developer.

I am following a tutorial for the service discovery with Eureka. I downloaded my spring projects from start.spring.io. I have a Eureka server and two clients. My Eureka server picks up both services and show it on the web interface but when I try to send a get request to a service using the service name, I get the unknown host error. Here is my Eureka server:

Verify that your service names match what you have configured in your configuration files. The service name is the value of spring.application.name. Make sure that this value matches the name of the service you are trying to access.

I am getting the same error after installing Ubuntu 22.04.2 LTS yesterday, as my only OS, not in a VM, although I am nevertheless able to use Firefox. This is obviously an inherent problem with Ubuntu since I made no changes and the problem occurred immediately. I am also getting the same error regarding linux-headers-5.19.0-50-generic:amd64, but with no noticeable consequences. It's possible this is a result of my choosing the Minimal installation, and/or choosing to download updates during installation.

In full, Ubuntu tells me "An error occurred, please run Package Manager from the right-click menu or apt-get in a terminal to see what is wrong. The error message was: ' Unknown Error: '' ("The cache has no package named 'firefox:amd64'")'. This usually means that your installed packages have unmet dependencies".

Using a ton of libraries, IO, ... you cannot handle all imaginary errors.You will need some form of "catch uncaught exception" handling to still have a control flow for such a case.But if you are aware of such an error, you usually can and want to add a proper handling.

I don't see a paradox here. You don't simply remove a test because someone added error handling logic. If you stumble across an error condition that was not previously encountered, you need to have a conversation with developers and management about how this situation should be handled. Sure, you discovered it. Now you wrote a test. Record the expected result, which is the application throws an error, crashes, etc. If this is unacceptable, then requirements need to be defined to handle this.

After an unknown error condition is handled, your old test is likely outdated. The test should be updated to assert the new, expected error handling behavior. Like you said, what was unknown has now become known.

This pattern of testing and discovery is known as black-box testing. It really is a form of experimentation where the tester makes no assumptions about how the system is supposed to work, or how people are supposed to use it. Black-box testing can uncover these "unknown errors". Write a test. Define how the application should behave. Supplement with white-box testing once you understand the internals that allow this error to surface.

There is no paradox. What you are describing is a name for something. The important thing is you communicate what happened, how you encountered it, and have a conversation with the relevant development and management people to determine how this should be handled.

If you use an iPhone, you probably listen to music with Apple Music. It's great until an error pops up and stops you from playing your songs. If you see a message saying "An unknown error occurred", don't worry, follow the steps outlined here to troubleshoot and fix the problem.

An outdated app can lead to various problems. Make sure you have the latest version of the Apple Music app installed. Check for updates by going to the App Store or Google Play Store and searching for Apple Music. If there's an update, tap the button to download and install it.

Restarting the Apple Music app and your iPhone or iPad can fix unknown errors by clearing glitches, refreshing connections, resetting software, freeing up resources, and reconnecting to the network. These easy steps often solve minor problems that cause errors, making them important for troubleshooting.

If your device is filled with too many Apple Music downloads or other files, you might face issues playing your music due to lack of storage space. To resolve this, you need to clear the memory on your device. For Android users who store Apple Music on an SD card, make sure the SD card has enough free space. Once you've cleared up some storage, try playing your Apple Music songs again.

If there's a connection problem between your phone and earphones, you might see an unknown error on Apple Music. To fix this, try unplugging your earphones, pressing play on Apple Music, and then plugging the earphones back in. If it's a Bluetooth headset, try disconnecting and reconnecting it on your Bluetooth setting.

If you're having trouble playing a specific Apple Music song on your device, you might need to "reconnect" the song from your Music library. Try deleting the song and then adding it again. Alternatively, you can delete the song and sync it back from your iCloud or another source.

A Reddit user mentioned that he resolved the Apple Music unknown error by turning off the sync between devices. Remember to back up your playlists first, as they might disappear when you disable the sync function.

If you're encountering unknown error with Apple Music, resetting certain settings can often help. In the app's settings under "Advanced", you'll find options to "Reset Warnings" and "Reset Cache". These functions clear out temporary data and reset warnings, potentially resolving playback errors or unknown errors. Simply select these options, restart the app, and check if the issues persist.

If the song you're listening to doesn't support the "Dolby Atmos" feature, you'll encounter playback issues. To resolve this, you'll need to manually disable the "Dolby Atmos" settings on your device.

If you're having trouble playing music on the Apple Music app, there's another way to get your tunes. You can download the Apple Music onto your computer and then transfer it to your iPhone or other devices.

One helpful tool for this is NoteBurner Apple Music Converter. It's a software that lets you save Apple Music songs as audio files on your computer. With NoteBurner, you can convert Apple Music tracks to different formats like MP3, AAC, WAV, FLAC, AIFF, and ALAC. It works at 10X faster speed and keeps all the important info about your songs intact, like their titles and artists. Plus, NoteBurner can even preserve the original sound quality from Apple Music Lossless songs.

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