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First, this error message is indeed expected on Jan. 11th, 2022.
See "Improving Git protocol security on GitHub".

January 11, 2022 Final brownout.

This is the full brownout period where we’ll temporarily stop accepting the deprecated key and signature types, ciphers, and MACs, and the unencrypted Git protocol.
This will help clients discover any lingering use of older keys or old URLs.

Second, check your package.json dependencies for any git:// URL, as in this example, fixed in this PR.

As noted by Jörg W Mittag:

There was a 4-month warning.
The entire Internet has been moving away from unauthenticated, unencrypted protocols for a decade, it's not like this is a huge surprise.

Personally, I consider it less an "issue" and more "detecting unmaintained dependencies".

Plus, this is still only the brownout period, so the protocol will only be disabled for a short period of time, allowing developers to discover the problem.

The permanent shutdown is not until March 15th.

As in actions/checkout issue 14, you can add as a first step:

After the build has failed go to AndroidManifest.xml and in the bottom click merged manifest see which activities which have intent-filter but don't have exported=true attribute. Or you can just get the activities which are giving error.

Add these activities to your App manifest with android:exported="true" and app tools:node="merge" this will add exported attribute to the activities giving error.

Example:

I just had the same problem and solved doing this in android/app/build.gradle.

Changed:

Go to android/app/build.gradle and change the minSdkVersion and targetSdkVersion to integer values.

I've worked with Compose since the early alpha stages and became quickly disappointed with Google's lame attempt at providing a more modern approach to navigating a single-activity app. When you consider that Android's view-based system was entirely replaced with the declaration approach that Compose uses, you have to seriously wonder why they would stick with a navigation controller that doesn't allow you pass objects from one screen to another. There was also the issue that adding animation when transitioning from one screen to another was an afterthought. There is an add-on that supports animation transitions.

But perhaps the worst thing about Compose was its lack of handling device configuration changes. Under the older view-based system, you defined your layouts in xml files and placed these in resource folders that had qualifiers in the folder name that would aid Android in picking the correct layout based on things like screen density, orientation, screen size, etc. That went out the window with Compose. Eventually Google did add APIs to handle composables that need to be selected based on screen sizes and densities. But ultimately, you end up writing this decision logic within your composable and your code starts to look like spaghetti. Google's Android team completely forgot about the most basic "Separation of Concerns" when they chose to mix UI layouts with the logic that determines which layout gets selected. Designing your composables is one thing and how they get selected is another. Don't mix the two. Your composables become increasingly less reusable when you integrate those APIs. The original developers of Android (who weren't from Google) knew well enough to have the operating system manage the layout selection based upon changes to device configurations.

I chose to create my own framework that handles navigation and manages composables in almost an identical way that the view-based system works. It also remedies the issue of not being able to pass objects from screen to screen. If you are interested, you can check it out at:

https://github.com/JohannBlake/Jetmagic

So to answer you question about whether Compose Navigation is good for navigating, I would have to say no. I have worked with it and have found it severely lacking. If you want to be just-another-run-of-the-mill-Android-developer, then use Compose Navigation. But if you want to chart your own path and liberate yourself from Google's poor design practices, then use Jetmagic or even better, create your own navigation framework. It isn't that hard.

It is the expected behaviour. You are constructing two separate app bars for both the screens so they are bound to flash. This is not the correct way. The correct way would be to actually put the scaffold in your main activity and place the NavHost as it's content. If you wish to modify the app bar, create variables to hold state. Then modify them from the Composables. Ideally, store then in a viewmodel. That is how it is done in compose. Through variables.

Thanks

The developers have fixed this bug in one of the recent updates.

you could try to import the image data as a 2-dimensional grid, and then flipping it.. could work not sure.

UPDATE:

For your firebase_core version is seems to be sufficient to pass the FirebaseOptions once you initialize firebase in your flutter code (and you don't need any script tags in your index.html):