I just started seeing the following warning in Xcode's console:
Class VCWeakObjectHolder is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/AVConference.framework/Frameworks/ViceroyTrace.framework/ViceroyTrace (0x12f3384d0) and
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/AVConference.framework/AVConference (0x12e464e38). One of the two will be used. Which one is undefined.
I'm not familiar with the above framework and I'm not using any frameworks in the little app I'm experimenting with.
I don't know why this started showing up unless I did something by accident and I don't remember.
Any clues as to what the cause is?
thanks
Related
I'm trying to start a dotnet MAUI app following the tutorial of MS in their official docs
I'm just opening the startup MAUI project(the built-in default one) and VS22 just won't have it. I get 40+ errors most of them about reference missing and duplication of classes/functions
glimps from the errors I get
now I have already seen a post here having somewhat of the same problem but the solutions(restarting and downloading workloads from the CLI using - dotnet workload intall) just didn't work for me.
I haven't done any changes to the code whatsoever so I really don't get what is the problem here.
any help would be appreciated.
Edit 1:
The app do seems to be working when I run the android simulator… which makes it even weirder
This is a bug in the tooling at the moment it seems. If you look at the errors, especially the ones in your screenshot you can see that these talk about Android. If you expand the Project column for a little you will see the list of target platforms that it's talking about.
Because everything is in 1 project now, it gives errors about platform-specific stuff because it is only looking at that one target that it's building. In this case, maybe you were building iOS and it gives errors about not being able to find Android types. This makes sense, however, we shouldn't see these errors in this case.
It's a bit hard to explain like this, I hope it makes any sense.
Long story short, it's a bug, it's being worked on. And you should be able to ignore them and it would still run as you've already discovered yourself. It gives a lot of noise however and if there is an actual error, you will have to find that in this list and fix that.
So I'm trying to follow some tutorials on .Net core web apps.
I started running into issues first when I tried to use glyphicons. They never worked and I got the intellisense warning "Unknown CSS Class 'glyphicon'".
As I got further into the tutorials I would increasingly run into these types of CSS warnings. Input-Group-btn, btn-default, and panels all gave similar warnings and didn't work. But I thought I must have missed a step or something.
But now I'm looking at the default _Layout.cshtm and seeing similar warnings, and understanding that, that's probably why my pages don't look like the examples. Navbar-toggleable-sm is an unknown class.
To be clear, many of the classes work. Most, even.
I thought maybe it was just a version issue, but glyphicons and panels don't seem seem like they would be deprecated features.
I'm looking in my bootstrap distribution and it looks like I'm on version 4.3.1.
Why would these classes be missing and how could I fix this?
Ok, so the answer to this appears to be that many, MANY features have been changed between bootstrap 3 and 4, and Microsoft didn't update their templates. So by default bootstrap 4 is installed, but the pages generated use bootstrap 3 classes.
For glyphicon you can use FontAwesome.
Panels, thumbnails, and wells have all been replaced with cards.
More information can be found here.
I'm part of a team that's using NativeScript and angular and we keep getting errors that look like:
Error: com.tns.NativeScriptException: Attempt to use cleared object reference id=<some-object-id-number>
From some research it's because we use markingMode: none in order to speed up our application. We want to keep using this so we need to find the source of the errors. From the documentation, it comes from creating a native object then wrapping it in a JS method so the garbage collector removes the native object in the method but since it's still being referenced an error is thrown. The documentation also indicated that this most likely stems from using plugins that haven't adapted to markingMode: none. The plugin I believe that's causing this is the nstudio nativescript-checkbox plugin. So I looked through the source code to try to find the native options that fit the criteria and my issues are the following:
I'm not sure if I'm finding all the native objects.
I don't know where to release them in the code.
I'm not sure if this plugin is the only one that's causing issues (we use a lot of plugins and all of them are pretty integral to our code).
I scoured our code base and couldn't find any instances where this may be a problem, but I could be wrong.
If anyone has experienced this markingMode: none issue, specifically with plugins, I would love to hear how you dealt with it and if you had any tips/suggestions moving forward. Here's the documentation detailing this issue:
https://docs.nativescript.org/core-concepts/android-runtime/advanced-topics/marking-mode-none
The NativeScript developers said it was fixed in this bug fix with an update, but I haven't noticed a change:
https://github.com/NativeScript/NativeScript/issues/7125
UPDATE: I commented out the checkbox plugin and no error, this is definitely being caused by the plugin
Removed all instances of the checkbox component and the side navigation bar and made our own custom components for them.
When using App Code, autocomplete will only show results directly related to my struct. This is a great feature as it keeps everything very clean and I know that accessing these properties isn't going to give me an error.
Except I don't like App Code and it's non native looking UI.
In Xcode it's quite different. Why am I getting flatMap, map, description, debugDescription?
Obviously if its my own code, I know which properties/functions are okay to use, because I wrote them. I can just ignore the noise. But if I'm using someone else's library this can slow things down. Especially when I'm just guessing or trying to remember a function.
Is there a way to fix this — to have Xcode not show me functions/properties that I can't use?
It always shows default system objects properties if the object/class is not found.
It's the behavior of Xcode
I want to implement unit testing in my Xcode project, and would like to run tests without requiring the application to be started.
Reasons for this are, I have a core data based document app, that also uses a cvdisplay link to control continuous rendering in a background thread.
It strikes me that I do not need a running application to test core data datamodel functionality, this should be distinct from view stuff anyway. Also I would like to isolate and performance test my background rendering processes, something that seems very difficult with the app running, but could easily do without the application running, just getting the right classes and feed it the correct data.
I've seen other questions that have answers for Xcode versions before six, but the answers don't seem to work for the current version.
The docs now make a distinction between application and library tests. Library tests are run against library targets.
I'm not sure i want to reorganise my code into distinct libraries at the moment, and would prefer to avoid it or fake it somehow.
I saw somewhere an openradar relating to this in ios, but I'm interested in osx.
Has anyone any insight into this?
EDIT : Learning to cope with the existing setup for now, testing with full app running, I can run some checks on that, then I close all documents and shut down the display link.
I can then run tests creating my own persistent store coordinator, in memory datastore and context, as well as testing my rendering classes without fear of conflict with the other display thread.
I'm now running into troubles with linking sources, I just can't seem to get it right, I fiddle with settings, it seems to work for a bit, then suddenly stops building again with Undefined symbols for architecture x86_64: errors, either that or problems linking with 3rd party private frameworks. I look through the web, change a few things, it starts working again. Then I add some tests, importing more of my classes, things stop working again.,.. Infuriating
EDIT 2: Pretty much all sorted now, but maybe not terribly efficient. For each test case class, I either open or close documents and start or stop the display link in the +(void)setup method. I don't do anything in the +(void)tearDown, and let the setup decide how to proceed based on the current state.
Although this means it's possible to flow from one test class to another minimizing document opens and closes, there doesn't seem to be a way to order the tests so that I could group them together.
BTW, I also solved my mentioned linking troubles (XCode 6 Testing Target Troubles), not really relevant to this question though.
It sounds like you landed on the standard solution: Give your app a way to tell when it's being stood up for testing rather than use, and then have applicationDidFinishLaunching: not do any of your usual launch-time behaviors, but leave it to specific tests to provide any setup they need.
You might benefit from creating multiple test suites to deal with different expected conditions, like all the tests that work around a specific document being open.