Android 15 crashes with "security reinforcement techniques" error

[gitfname]

When building my Tauri Android app for release and installing it on a device running Android 15 (API 36), the app crashes immediately upon opening. Android shows a popup message:

"This app is using some security reinforcement techniques that are not supported in this Android version."

The app builds successfully but crashes on launch.

Steps to Reproduce

1. Configure signing key for release build per Tauri docs
2. Run npm run tauri android build --apk
3. Build completes successfully
4. Install APK on Android 15 device/emulator
5. Open the app → immediate crash with the above error

Expected Behavior

App should launch normally on Android 15.

Actual Behavior

App crashes on launch with Android system popup about unsupported security techniques.

Additional Context

compileSdk is 36

[gitfname]

And btw . i did not changed anything in the app's code. i just created the app using "npm create tauri-app@latest
" command and configured the signkey

[FabianLars]

Can you please check the behavior when you downgrade the tauri crate in cargo.toml to "=1.10"

[gitfname]

Sorry. i'm new to Tauri . can you please tell me what should i do :)
There is too many "2"'s in the Cargo.toml 😂

[FabianLars]

I'm on my phone right now but under [dependencies] there should be a line starting with `tauri = { version = "2", ...
That's the "2" I'd like you to change to "=2.10"

[gitfname]

I changed it to 2.10 . but the result is the same . still throws that error and app crashes.
but i also checked the "1.10" and it throwed this error while building ( after the "npm run build" phase ) :

error: failed to select a version for the requirement tauri = "^1.10"
candidate versions found which didn't match: 2.11.0, 2.10.3, 2.10.2, ...
location searched: crates.io index
required by package social-media-app v0.1.0 (C:\Projects\crypto-fa\social-media-app\app\social-media-app\src-tauri)
if you are looking for the prerelease package it needs to be specified explicitly
tauri = { version = "2.0.0-rc.17" }
failed to build Android app: Failed to run cargo build: command ["cargo", "build", "--package", "social-media-app", "--manifest-path", "C:\\Projects\\crypto-fa\\social-media-app\\app\\social-media-app\\src-tauri\\Cargo.toml", "--target", "aarch64-linux-android", "--features", "tauri/custom-protocol tauri/custom-protocol", "--lib", "--release"] exited with code 101 Error failed to build Android app: Failed to run cargo build: command ["cargo", "build", "--package", "social-media-app", "--manifest-path", "C:\Projects\crypto-fa\social-media-app\app\social-media-app\src-tauri\Cargo.toml", "--target", "aarch64-linux-android", "--features", "tauri/custom-protocol tauri/custom-protocol", "--lib", "--release"] exited with code 101

[FabianLars]

anything below 2.0 didn't support android so no need to check v1 versions (also the config files etc were way different). But it's good to know that this is not a 2.11 regression, so thanks for testing!

did you see this error on multiple devices/simulators ?

[gitfname]

I tested it on 3 different devices ( 2 android 15 and 1 android 7 ) it crashed in all of them

[FabianLars]

hmm okay. that's pretty bad then. Thanks for testing & reporting!

[gitfname]

I tested it with the --debug flag. it worked and did not crashed.
but still crashing on release version.
what should i do now ?

[FabianLars]

i think you need to give us a bit of time here 😅 i don't think i've seen this before so i don't know of any workarounds right now. I also can't find anything on google etc and the whole text sounds so unofficial.

What is behind the "View history" link?

[gitfname]

looks like the issue is related to "signing" of the app . i created an unsigned release version and i manually signed it using the "apk signer" app ( which i installedd it fom google play store ) and signed the app. and it worked . it didn't crashed now

[gitfname]

this is the command i used to create the upload-keystore.jks : "keytool -genkey -v -keystore E:\upload-keystore.jks -storetype JKS -keyalg RSA -keysize 2048 -validity 10000 -alias upload"

and then i just moved the upload-keystore.jks to the root of the project. and this is my keystore.properties content right now :

password=123456789
keyAlias=upload
storeFile=C:/Projects/crypto-app/social-media-app/app/social-media-app/upload-keystore.jks