Here's what you'll get if you try to build the app on macOS 10.15:
npm run tauri dev
> example@0.1.0 tauri
> tauri dev
Running DevCommand (`cargo run --no-default-features --color always --`)
Info Watching ~/example/src-tauri for changes...
Updating git repository `https://github.com/tauri-apps/tao`
Updating git repository `https://github.com/tauri-apps/wry`
Updating crates.io index
Locking 477 packages to latest compatible versions
Adding generic-array v0.14.7 (available: v0.14.9)
Adding toml v0.8.2 (available: v0.8.23)
Adding toml_datetime v0.6.3 (available: v0.6.11)
Adding toml_edit v0.20.2 (available: v0.20.7)
...
Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 42s
Running `target/debug/example`
thread 'main' (383024) panicked at ~/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/objc2-0.6.4/src/__macro_helpers/define_class.rs:416:21:
failed overriding protocol method -[WKNavigationDelegate webView:navigationAction:didBecomeDownload:]: method not found
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
thread 'main' (383024) panicked at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/core/src/panicking.rs:225:5:
panic in a function that cannot unwind
stack backtrace:
0: 0x10777bff8 - std[b33743bf75a7d9fc]::backtrace_rs::backtrace::libunwind::trace
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
1: 0x10777bff8 - std[b33743bf75a7d9fc]::backtrace_rs::backtrace::trace_unsynchronized::<std[b33743bf75a7d9fc]::sys::backtrace::_print_fmt::{closure#1}>
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
2: 0x10777bff8 - std[b33743bf75a7d9fc]::sys::backtrace::_print_fmt
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/sys/backtrace.rs:74:9
3: 0x10777bff8 - <<std[b33743bf75a7d9fc]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[2691a9036f58a443]::fmt::Display>::fmt
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/sys/backtrace.rs:44:26
4: 0x107791ed7 - <core[2691a9036f58a443]::fmt::rt::Argument>::fmt
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/core/src/fmt/rt.rs:152:76
5: 0x107791ed7 - core[2691a9036f58a443]::fmt::write
6: 0x107781721 - std[b33743bf75a7d9fc]::io::default_write_fmt::<std[b33743bf75a7d9fc]::sys::stdio::unix::Stderr>
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/io/mod.rs:639:11
7: 0x107781721 - <std[b33743bf75a7d9fc]::sys::stdio::unix::Stderr as std[b33743bf75a7d9fc]::io::Write>::write_fmt
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/io/mod.rs:1994:13
8: 0x10775d6b5 - <std[b33743bf75a7d9fc]::sys::backtrace::BacktraceLock>::print
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/sys/backtrace.rs:47:9
9: 0x10775d6b5 - std[b33743bf75a7d9fc]::panicking::default_hook::{closure#0}
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:292:27
10: 0x1077749e7 - std[b33743bf75a7d9fc]::panicking::default_hook
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:319:9
11: 0x107774d66 - std[b33743bf75a7d9fc]::panicking::panic_with_hook
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:825:13
12: 0x10775d7b8 - std[b33743bf75a7d9fc]::panicking::panic_handler::{closure#0}
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:691:13
13: 0x10774f049 - std[b33743bf75a7d9fc]::sys::backtrace::__rust_end_short_backtrace::<std[b33743bf75a7d9fc]::panicking::panic_handler::{closure#0}, !>
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/sys/backtrace.rs:182:18
14: 0x10775df24 - __rustc[b7974e8690430dd9]::rust_begin_unwind
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:689:5
15: 0x1077c51dc - core[2691a9036f58a443]::panicking::panic_nounwind_fmt::runtime
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/core/src/panicking.rs:122:22
16: 0x1077c51dc - core[2691a9036f58a443]::panicking::panic_nounwind_fmt
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/core/src/intrinsics/mod.rs:2447:9
17: 0x1077c5147 - core[2691a9036f58a443]::panicking::panic_nounwind
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/core/src/panicking.rs:225:5
18: 0x1077c52e2 - core[2691a9036f58a443]::panicking::panic_cannot_unwind
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/core/src/panicking.rs:337:5
19: 0x1073d0ff9 - tao::platform_impl::platform::app_delegate::did_finish_launching::hed11f2237996d0c5
at ~/.cargo/git/checkouts/tao-acc866d3b4940d67/1080241/src/platform_impl/macos/app_delegate.rs:125:1
20: 0x7fff31eea549 - ___CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__
21: 0x7fff31eea4dd - ____CFXRegistrationPost1_block_invoke
22: 0x7fff31eea452 - __CFXRegistrationPost1
23: 0x7fff31eea0be - ____CFXNotificationPost_block_invoke
24: 0x7fff31eba26c - -[_CFXNotificationRegistrar find:object:observer:enumerator:]
25: 0x7fff31eb9635 - __CFXNotificationPost
26: 0x7fff3455f096 - -[NSNotificationCenter postNotificationName:object:userInfo:]
27: 0x7fff2f160873 - -[NSApplication _postDidFinishNotification]
28: 0x7fff2f1605b2 - -[NSApplication _sendFinishLaunchingNotification]
29: 0x7fff2f15d673 - -[NSApplication(NSAppleEventHandling) _handleAEOpenEvent:]
30: 0x7fff2f15d2b8 - -[NSApplication(NSAppleEventHandling) _handleCoreEvent:withReplyEvent:]
31: 0x7fff3458a336 - -[NSAppleEventManager dispatchRawAppleEvent:withRawReply:handlerRefCon:]
32: 0x7fff3458a1a0 - __NSAppleEventManagerGenericHandler
33: 0x7fff3328c203 - __AppleEventsCheckInAppWithBlock
34: 0x7fff3328b929 - __AppleEventsCheckInAppWithBlock
35: 0x7fff33283bd7 - _aeProcessAppleEvent
36: 0x7fff30b207ea - _AEProcessAppleEvent
37: 0x7fff2f157661 - __DPSNextEvent
38: 0x7fff2f155c10 - -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:]
39: 0x7fff2f14791e - -[NSApplication run]
40: 0x10753f0c0 - <() as objc2::encode::EncodeArguments>::__invoke::h44d80abdf26e2b65
at ~/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/objc2-0.6.4/src/encode.rs:433:26
41: 0x107537d20 - objc2::runtime::message_receiver::msg_send_primitive::send::h23b80b778377779f
at ~/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/objc2-0.6.4/src/runtime/message_receiver.rs:172:18
42: 0x10752e560 - objc2::runtime::message_receiver::MessageReceiver::send_message::h39e960cc5307210a
at ~/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/objc2-0.6.4/src/runtime/message_receiver.rs:432:38
43: 0x1070c08a7 - <MethodFamily as objc2::__macro_helpers::msg_send_retained::MsgSend<Receiver,Return>>::send_message::h23cc29cdd54a5383
at ~/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/objc2-0.6.4/src/__macro_helpers/msg_send_retained.rs:35:28
44: 0x106e0c320 - tao::platform_impl::platform::event_loop::EventLoop<T>::run_return::h3f8a6eea103e822c
at ~/.cargo/git/checkouts/tao-acc866d3b4940d67/1080241/src/platform_impl/macos/event_loop.rs:234:16
45: 0x106e0c90d - tao::platform_impl::platform::event_loop::EventLoop<T>::run::h269b6b234507a7cb
at ~/.cargo/git/checkouts/tao-acc866d3b4940d67/1080241/src/platform_impl/macos/event_loop.rs:201:26
46: 0x1070992b4 - tao::event_loop::EventLoop<T>::run::h0024f88b856f937d
at ~/.cargo/git/checkouts/tao-acc866d3b4940d67/1080241/src/event_loop.rs:224:21
47: 0x10706980f - <tauri_runtime_wry::Wry<T> as tauri_runtime::Runtime<T>>::run::h6b15465cdc92d5b1
at ~/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tauri-runtime-wry-2.11.2/src/lib.rs:3246:21
48: 0x106f0c757 - tauri::app::App<R>::run::hf284326effead5db
at ~/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tauri-2.11.2/src/app.rs:1365:8
49: 0x106f0cec6 - tauri::app::Builder<R>::run::had8d7a5fb470d3cd
at ~/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tauri-2.11.2/src/app.rs:2442:26
50: 0x106f70902 - example_lib::run::h109b6e3a4ef603ed
at ~/example/src-tauri/src/lib.rs:12:10
51: 0x106e0bc59 - example::main::h6c355c59cd397a0d
at ~/example/src-tauri/src/main.rs:5:5
52: 0x106e0bbfe - core::ops::function::FnOnce::call_once::h21796de221d4b970
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/core/src/ops/function.rs:250:5
53: 0x106e0bca1 - std::sys::backtrace::__rust_begin_short_backtrace::hfa71b55c44551d81
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/sys/backtrace.rs:166:18
54: 0x106e0bbb4 - std::rt::lang_start::{{closure}}::h20a6061cd8d9375a
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/rt.rs:206:18
55: 0x1077736bb - <&dyn core[2691a9036f58a443]::ops::function::Fn<(), Output = i32> + core[2691a9036f58a443]::marker::Sync + core[2691a9036f58a443]::panic::unwind_safe::RefUnwindSafe as core[2691a9036f58a443]::ops::function::FnOnce<()>>::call_once
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/core/src/ops/function.rs:287:21
56: 0x1077736bb - std[b33743bf75a7d9fc]::panicking::catch_unwind::do_call::<&dyn core[2691a9036f58a443]::ops::function::Fn<(), Output = i32> + core[2691a9036f58a443]::marker::Sync + core[2691a9036f58a443]::panic::unwind_safe::RefUnwindSafe, i32>
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:581:40
57: 0x1077736bb - std[b33743bf75a7d9fc]::panicking::catch_unwind::<i32, &dyn core[2691a9036f58a443]::ops::function::Fn<(), Output = i32> + core[2691a9036f58a443]::marker::Sync + core[2691a9036f58a443]::panic::unwind_safe::RefUnwindSafe>
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:544:19
58: 0x1077736bb - std[b33743bf75a7d9fc]::panic::catch_unwind::<&dyn core[2691a9036f58a443]::ops::function::Fn<(), Output = i32> + core[2691a9036f58a443]::marker::Sync + core[2691a9036f58a443]::panic::unwind_safe::RefUnwindSafe, i32>
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panic.rs:359:14
59: 0x1077736bb - std[b33743bf75a7d9fc]::rt::lang_start_internal::{closure#0}
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/rt.rs:175:24
60: 0x1077736bb - std[b33743bf75a7d9fc]::panicking::catch_unwind::do_call::<std[b33743bf75a7d9fc]::rt::lang_start_internal::{closure#0}, isize>
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:581:40
61: 0x1077736bb - std[b33743bf75a7d9fc]::panicking::catch_unwind::<isize, std[b33743bf75a7d9fc]::rt::lang_start_internal::{closure#0}>
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:544:19
62: 0x1077736bb - std[b33743bf75a7d9fc]::panic::catch_unwind::<std[b33743bf75a7d9fc]::rt::lang_start_internal::{closure#0}, isize>
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panic.rs:359:14
63: 0x1077736bb - std[b33743bf75a7d9fc]::rt::lang_start_internal
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/rt.rs:171:5
64: 0x106e0bb97 - std::rt::lang_start::h3d18b53742b4b60f
at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/rt.rs:205:5
65: 0x106e0bc78 - _main
thread caused non-unwinding panic. aborting.So I think this lines, at the very least, needs to be updated:
https://v2.tauri.app/start/prerequisites/#:~:text=macOS%20Catalina%20(10.15)%20and%20later
https://github.com/tauri-apps/tauri#:~:text=macOS-,10.15%20and%20above,-Linux
Here's what you'll get if you try to build the app on macOS 10.15:
So I think this lines, at the very least, needs to be updated:
https://v2.tauri.app/start/prerequisites/#:~:text=macOS%20Catalina%20(10.15)%20and%20later
https://github.com/tauri-apps/tauri#:~:text=macOS-,10.15%20and%20above,-Linux