`Create New Wallet` fails

[ethicnology]

Hey @bonomat 👋

I'm trying to run this ark-flutter-example following the README and also the nigiri doc and docs.arklabs.xyz but the Create New Wallet button fails with the error:

flutter: [INFO] TIME: 2025-08-01T19:19:58.892030Z Creating new wallet
flutter: [DEBUG] TIME: 2025-08-01T19:19:58.893817Z r: Stored secret key in file seed_path: "/Users/azad/Library/Developer/CoreSimulator/Devices/B7DD507E-F332-4F60-9C71-7587D2447C1C/data/Containers/Data/Application/A42AB222-8679-4FFF-BD4C-ED6D737EEC74/Library/Application Support/seed"
flutter: [INFO] TIME: 2025-08-01T19:19:58.947959Z r: Checking esplora connection
flutter: [ERROR] TIME: 2025-08-01T19:19:58.966357Z Failed to create new wallet: AnyhowException(Parsing(ParseIntError { kind: InvalidDigit }))

Context

• iOS simulator
• flutter_rust_bridge 2.11.0
• flutter 3.29.3

ESPLORA_URL=http://localhost:5000
ARK_SERVER_URL=http://localhost:7070
ARK_NETWORK=regtest

Demo

Simulator.Screen.Recording.-.iPhone.16.Pro.Max.-.2025-08-01.at.15.15.32.mp4

[tiero]

Hey we have release a major upgrade in arkd v0.7 and made sure all SDKs are in sync.

Unfortunately we didn't have time to upgrade also this flutter example.

Hopefully next week @bonomat and @luckysori can take a look and propose a path to upgrade it at as well.

If you feel adventurous, you could check the master of the to be used directly with a flutter bridge

https://github.com/arkade-os/rust-sdk

[tiero]

Please @ethicnology test again with latest master, it should be updated now

[ethicnology]

@tiero Hello, and thanks for the quick update!

Unfortunately, the current master builds a white screen app.
This appears to be related to the recent flutter_rust_bridge upgrade, it's a sensitive dependency.

The generated files in the repo are based on FRB v2.9.0, but the upgraded version is now v2.11.1.
There are two possible solutions:

• Re-generate the bindings using flutter_rust_bridge_codegen generate with FRB v2.11.1 and push them to the repo
• Downgrade to v2.9.0 and re-generate the files to match

I attempted to regenerate using FRB v2.11.1, but for some reason the flutter_rust_bridge_codegen generate command hangs and doesn’t proceed.

I spent time investigating whether the issue came from my FRB binary. After purging Cargo, reinstalling FRB cleanly, and successfully generating bindings in other repos, the issue seems specific to this repository.

Given that, I recommend downgrading to FRB v2.9.0 and regenerating the files

[tiero]

cc/ @bonomat @luckysori

[bonomat]

Mhm, interesting. It definitely worked for me. :/

I'll look into it.

[bonomat]

I attempted to regenerate using FRB v2.11.1, but for some reason the flutter_rust_bridge_codegen generate command hangs and doesn’t proceed.

can you try to run it with RUST_LOG=debug to get more details where it hangs?

 RUST_LOG=debug flutter_rust_bridge_codegen generate

[ethicnology]

If it works for you I assume you have re-generated the v2.11.1 bindings, the current bindings in the repo are based on v2.9.0

ark-flutter-example/rust/src/frb_generated.rs

Line 2 in 0969872

// @generated by `flutter_rust_bridge`@ 2.9.0.

which leads to Unhandled Exception: Bad state: rust_lib_ark_flutter's codegen version (2.9.0) should be the same as runtime version (2.11.1).

If you can commit your locally re-generated bindings it should solve the problem

can you try to run it with RUST_LOG=debug to get more details where it hangs?

sure, it blocks here

[2025-08-06T11:51:48.244Z DEBUG /Users/azad/.cargo/registry/src/index.crates.io-6f17d22bba15001f/flutter_rust_bridge_codegen-2.11.1/src/main.rs:25] cli=Cli { verbose: false, command: Generate(GenerateCommandArgs { watch: false, primary: GenerateCommandArgsPrimary { config_file: None, rust_input: None, dart_output: None, c_output: None, duplicated_c_output: None, rust_root: None, rust_output: None, dart_entrypoint_class_name: None, dart_format_line_length: None, dart_preamble: None, rust_preamble: None, no_dart_enums_style: false, no_add_mod_to_lib: false, llvm_path: None, llvm_compiler_opts: None, dart_root: None, no_build_runner: false, extra_headers: None, no_web: false, no_deps_check: false, default_external_library_loader_web_prefix: None, no_dart3: false, full_dep: false, default_rust_opaque_codec: None, local: false, enable_lifetime: false, type_64bit_int: false, no_default_dart_async: false, no_auto_upgrade_dependency: false, parse_const: false, no_dart_format: false, no_dart_fix: false, no_rust_format: false, stop_on_error: false, dump: None, dump_all: false, rust_features: None } }) }
[2025-08-06T11:51:48.245Z DEBUG /Users/azad/.cargo/registry/src/index.crates.io-6f17d22bba15001f/flutter_rust_bridge_codegen-2.11.1/src/library/codegen/config/config_parser.rs:51] Found config file flutter_rust_bridge.yaml
[2025-08-06T11:51:48.245Z DEBUG /Users/azad/.cargo/registry/src/index.crates.io-6f17d22bba15001f/flutter_rust_bridge_codegen-2.11.1/src/library/codegen/mod.rs:24] config=Config { base_dir: Some(""), rust_input: Some("crate::api"), dart_output: Some("lib/src/rust"), c_output: None, duplicated_c_output: None, rust_root: Some("rust/"), rust_output: None, dart_entrypoint_class_name: None, dart_format_line_length: None, dart_preamble: None, rust_preamble: None, dart_enums_style: None, add_mod_to_lib: None, llvm_path: None, llvm_compiler_opts: None, dart_root: None, build_runner: None, extra_headers: None, web: None, deps_check: None, dart3: None, full_dep: None, default_rust_opaque_codec: None, local: None, default_external_library_loader_web_prefix: None, dart_type_rename: None, enable_lifetime: Some(true), type_64bit_int: None, default_dart_async: None, auto_upgrade_dependency: None, parse_const: None, dart_format: None, dart_fix: None, rust_format: None, stop_on_error: None, dump: None, dump_all: None, rust_features: None } meta_config=MetaConfig { watch: false }
[2025-08-06T11:51:48.245Z DEBUG /Users/azad/.cargo/registry/src/index.crates.io-6f17d22bba15001f/flutter_rust_bridge_codegen-2.11.1/src/library/codegen/config/internal_config_parser/mod.rs:34] InternalConfig.parse base_dir="/Users/azad/Repos/ark-flutter-example"
[2025-08-06T11:51:48.944Z DEBUG /Users/azad/.cargo/registry/src/index.crates.io-6f17d22bba15001f/flutter_rust_bridge_codegen-2.11.1/src/library/codegen/mod.rs:27] internal_config=InternalConfig { controller: ControllerInternalConfig { watch: false, watching_paths: ["/Users/azad/Repos/ark-flutter-example/rust/src"], exclude_paths: ["/Users/azad/Repos/ark-flutter-example/rust/src/frb_generated.rs"], max_count: None }, preparer: PreparerInternalConfig { dart_root: "/Users/azad/Repos/ark-flutter-example", deps_check: true, needs_ffigen: false }, parser: ParserInternalConfig { hir: ParserHirInternalConfig { rust_input_namespace_pack: RustInputNamespacePack { rust_input_namespace_prefixes: [Namespace { joined_path: "crate::api" }], rust_output_path_namespace: Namespace { joined_path: "crate::frb_generated" } }, rust_crate_dir: "/Users/azad/Repos/ark-flutter-example/rust", third_party_crate_names: [], rust_features: None, parse_const: false }, mir: ParserMirInternalConfig { rust_input_namespace_pack: RustInputNamespacePack { rust_input_namespace_prefixes: [Namespace { joined_path: "crate::api" }], rust_output_path_namespace: Namespace { joined_path: "crate::frb_generated" } }, force_codec_mode_pack: Some(CodecModePack { dart2rust: Pde, rust2dart: Pde }), default_stream_sink_codec: Sse, default_rust_opaque_codec: Moi, stop_on_error: false, enable_lifetime: true, type_64bit_int: false, default_dart_async: true } }, generator: GeneratorInternalConfig { api_dart: GeneratorApiDartInternalConfig { dart_enums_style: true, dart3: true, dart_decl_base_output_path: "/Users/azad/Repos/ark-flutter-example/lib/src/rust", dart_impl_output_path: TargetOrCommonMap { common: "/Users/azad/Repos/ark-flutter-example/lib/src/rust/frb_generated.dart", io: "/Users/azad/Repos/ark-flutter-example/lib/src/rust/frb_generated.io.dart", web: "/Users/azad/Repos/ark-flutter-example/lib/src/rust/frb_generated.web.dart" }, dart_entrypoint_class_name: "RustLib", dart_preamble: "", dart_type_rename: {} }, wire: GeneratorWireInternalConfig { dart: GeneratorWireDartInternalConfig { has_ffigen: false, web_enabled: true, llvm_path: ["/opt/homebrew/opt/llvm", "/usr/local/opt/llvm", "/usr/lib/llvm-9", "/usr/lib/llvm-10", "/usr/lib/llvm-11", "/usr/lib/llvm-12", "/usr/lib/llvm-13", "/usr/lib/llvm-14", "/usr/lib/", "/usr/lib64/", "C:/Program Files/llvm", "C:/msys64/mingw64"], llvm_compiler_opts: "", dart_root: "/Users/azad/Repos/ark-flutter-example", extra_headers: "", dart_impl_output_path: TargetOrCommonMap { common: "/Users/azad/Repos/ark-flutter-example/lib/src/rust/frb_generated.dart", io: "/Users/azad/Repos/ark-flutter-example/lib/src/rust/frb_generated.io.dart", web: "/Users/azad/Repos/ark-flutter-example/lib/src/rust/frb_generated.web.dart" }, dart_output_class_name_pack: DartOutputClassNamePack { entrypoint_class_name: "RustLib", api_class_name: "RustLibApi", api_impl_class_name: "RustLibApiImpl", api_impl_platform_class_name: "RustLibApiImplPlatform", wire_class_name: "RustLibWire", wasm_module_name: "RustLibWasmModule" }, default_external_library_loader: GeneratorWireDartDefaultExternalLibraryLoaderInternalConfig { stem: "rust_lib_ark_flutter", io_directory: "rust/target/release/", web_prefix: "pkg/" }, c_symbol_prefix: "frbgen_ark_flutter_" }, rust: GeneratorWireRustInternalConfig { rust_crate_dir: "/Users/azad/Repos/ark-flutter-example/rust", web_enabled: true, rust_output_path: "/Users/azad/Repos/ark-flutter-example/rust/src/frb_generated.rs", c_symbol_prefix: "frbgen_ark_flutter_", has_ffigen: false, default_stream_sink_codec: Sse, default_rust_opaque_codec: Moi, rust_preamble: "" }, c: GeneratorWireCInternalConfig { enable: false, rust_crate_dir: "/Users/azad/Repos/ark-flutter-example/rust", rust_output_path: "/Users/azad/Repos/ark-flutter-example/rust/src/frb_generated.rs", c_output_path: None, c_symbol_prefix: "frbgen_ark_flutter_" } } }, polisher: PolisherInternalConfig { duplicated_c_output_path: [], dart_format_line_length: 80, dart_format: true, dart_fix: true, rust_format: true, add_mod_to_lib: true, build_runner: true, web_enabled: true, dart_output: "/Users/azad/Repos/ark-flutter-example/lib/src/rust", dart_root: "/Users/azad/Repos/ark-flutter-example", rust_crate_dir: "/Users/azad/Repos/ark-flutter-example/rust", rust_output_path: "/Users/azad/Repos/ark-flutter-example/rust/src/frb_generated.rs", c_output_path: None, enable_auto_upgrade: true }, dumper: DumperInternalConfig { dump_contents: [], dump_directory: "/Users/azad/Repos/ark-flutter-example/rust/target/frb_dump" } }
[2025-08-06T11:51:48.944Z DEBUG /Users/azad/.cargo/registry/src/index.crates.io-6f17d22bba15001f/flutter_rust_bridge_codegen-2.11.1/src/library/utils/dart_repository/dart_repo.rs:21] Guessing toolchain the runner is run into
[2025-08-06T11:51:48.944Z DEBUG /Users/azad/.cargo/registry/src/index.crates.io-6f17d22bba15001f/flutter_rust_bridge_codegen-2.11.1/src/library/commands/command_runner.rs:137] execute command: bin=sh args="-c \"fvm\" \"--version\"" current_dir=None cmd="sh" "-c" "\"fvm\" \"--version\""
[2025-08-06T11:51:49.044Z DEBUG /Users/azad/.cargo/registry/src/index.crates.io-6f17d22bba15001f/flutter_rust_bridge_codegen-2.11.1/src/library/commands/command_runner.rs:148] command="sh" "-c" "\"fvm\" \"--version\"" stdout=3.2.1
 stderr=
[2025-08-06T11:51:49.044Z DEBUG /Users/azad/.cargo/registry/src/index.crates.io-6f17d22bba15001f/flutter_rust_bridge_codegen-2.11.1/src/library/commands/command_runner.rs:137] execute command: bin=sh args="-c \"fvm\" \"flutter\" \"--version\"" current_dir=None cmd="sh" "-c" "\"fvm\" \"flutter\" \"--version\""

[bonomat]

I've checked in the 2.11.1 generated files and also found another issue which happens if running on an android simulator.

Can you try this branch if this fixes it for you please? #7

Regarding the stuck compilation: I don't see an immediate issue. Can you share your flutter version please?
I'm using fvm to manage flutter and the repo has a .fvmrc file checked in which should allow you to use the correct version

Here is my output:

fvm flutter --version
Flutter 3.29.2 • channel stable • https://github.com/flutter/flutter.git
Framework • revision c236373904 (5 months ago) • 2025-03-13 16:17:06 -0400
Engine • revision 18b71d647a
Tools • Dart 3.7.2 • DevTools 2.42.3

[ethicnology]

#7 is building fine with flutter_rust_bridge v2.11.1 💪

Creating a New wallet still fails

http://127.0.0.1:9103?uri=http://127.0.0.1:49356/KhrVfrKiJFQ=/
flutter: [INFO] TIME: 2025-08-07T11:46:02.051955Z r: Checking esplora connection
flutter: [ERROR] TIME: 2025-08-07T11:46:02.137364Z Error while checking wallet existence: AnyhowException(Parsing(ParseIntError { kind: InvalidDigit }))
[ERROR:flutter/runtime/dart_vm_initializer.cc(40)] Unhandled Exception: PanicException(Logger to initialise: attempted to set a logger after the logging system was already initializedBacktrace [{ fn: "std::backtrace::Backtrace::create" }, { fn: "flutter_rust_bridge::misc::panic_backtrace::PanicBacktrace::setup::{{closure}}" }, { fn: "std::panicking::rust_panic_with_hook" }, { fn: "std::panicking::begin_panic_handler::{{closure}}" }, { fn: "std::sys::backtrace::__rust_end_short_backtrace" }, { fn: "_rust_begin_unwind" }, { fn: "core::panicking::panic_fmt" }, { fn: "core::result::unwrap_failed" }, { fn: "core::result::Result<T,E>::expect" }, { fn: "rust_lib_ark_flutter::logger::create_log_stream::{{closure}}" }, { fn: "std::sync::once::Once::call_once::{{closure}}" }, { fn: "std::sys::sync::once::queue::Once::call" }, { fn: "std::sync::once::Once::call_once" }, { fn: "rust_lib_ark_flutter::logger::create_log_stream" }, { fn: "rust_lib_ark_flutter::api::init_logging" }, { fn: "rust_lib_ark_flutter::frb_<…>
flutter: [INFO] TIME: 2025-08-07T11:46:15.594404Z Creating new wallet
flutter: [DEBUG] TIME: 2025-08-07T11:46:15.596345Z r: Stored secret key in file seed_path: "/Users/azad/Library/Developer/CoreSimulator/Devices/B7DD507E-F332-4F60-9C71-7587D2447C1C/data/Containers/Data/Application/481B166F-9915-4B5E-9259-155B1BAED692/Library/Application Support/seed"
flutter: [INFO] TIME: 2025-08-07T11:46:15.644409Z r: Checking esplora connection
flutter: [ERROR] TIME: 2025-08-07T11:46:15.682166Z Failed to create new wallet: AnyhowException(Parsing(ParseIntError { kind: InvalidDigit }))
flutter: [INFO] TIME: 2025-08-07T11:47:58.015875Z Creating new wallet
flutter: [DEBUG] TIME: 2025-08-07T11:47:58.017214Z r: Stored secret key in file seed_path: "/Users/azad/Library/Developer/CoreSimulator/Devices/B7DD507E-F332-4F60-9C71-7587D2447C1C/data/Containers/Data/Application/481B166F-9915-4B5E-9259-155B1BAED692/Library/Application Support/seed"
flutter: [INFO] TIME: 2025-08-07T11:47:58.073107Z r: Checking esplora connection
flutter: [ERROR] TIME: 2025-08-07T11:47:58.101112Z Failed to create new wallet: AnyhowException(Parsing(ParseIntError { kind: InvalidDigit }))

[ethicnology]

nigiri CLI version

Version: 0.5.11
Commit: 05eb8ee91b4cd1d205ffc5be2f9aca7b36257fd3
Date: 2025-07-28T09:58:48Z

docker ps
CONTAINER ID   IMAGE                                             COMMAND                  CREATED         STATUS         PORTS                                                                                                        NAMES
0aa19f892579   ghcr.io/vulpemventures/esplora:latest             "docker-entrypoint.s…"   4 minutes ago   Up 4 minutes   0.0.0.0:5001->5000/tcp                                                                                       esplora-liquid
cc1b0db54b35   ghcr.io/vulpemventures/esplora:latest             "docker-entrypoint.s…"   4 minutes ago   Up 4 minutes   0.0.0.0:5000->5000/tcp                                                                                       esplora
0965cb84f81f   lightninglabs/taproot-assets:v0.4.1               "tapd --network=regt…"   4 minutes ago   Up 4 minutes   0.0.0.0:8089->8089/tcp, 0.0.0.0:10029->10029/tcp                                                             tap
cc6f374a440f   ghcr.io/vulpemventures/nigiri-chopsticks:latest   "/app --use-faucet -…"   4 minutes ago   Up 4 minutes   0.0.0.0:3001->3000/tcp                                                                                       chopsticks-liquid
0a4bb2bc720f   ghcr.io/arkade-os/arkd:v0.7.0                     "arkd"                   4 minutes ago   Up 4 minutes   0.0.0.0:7070->7070/tcp                                                                                       ark
e5e0664d3b27   ghcr.io/vulpemventures/nigiri-chopsticks:latest   "/app --use-faucet -…"   4 minutes ago   Up 4 minutes   0.0.0.0:3000->3000/tcp                                                                                       chopsticks
c271346c8bd1   elementsproject/lightningd:latest                 "/usr/bin/tini -g --…"   4 minutes ago   Up 4 minutes   0.0.0.0:9835->9835/tcp, 9735/tcp, 0.0.0.0:9935-9936->9935-9936/tcp                                           cln
c7665a3f23ef   lightninglabs/lnd:v0.18.4-beta.rc2                "lnd"                    4 minutes ago   Up 4 minutes   0.0.0.0:9735->9735/tcp, 0.0.0.0:10009->10009/tcp, 0.0.0.0:18080->18080/tcp                                   lnd
c9e81371abea   ghcr.io/vulpemventures/electrs-liquid:latest      "/build/electrs -vvv…"   4 minutes ago   Up 4 minutes   0.0.0.0:30001->30001/tcp, 0.0.0.0:50001->50001/tcp                                                           electrs-liquid
f51efd0cde33   ghcr.io/arkade-os/arkd-wallet:v0.7.0              "arkd-wallet"            4 minutes ago   Up 4 minutes   0.0.0.0:6060->6060/tcp                                                                                       ark-wallet
f8f67494599a   ghcr.io/vulpemventures/electrs:latest             "/build/electrs -vvv…"   4 minutes ago   Up 4 minutes   0.0.0.0:30000->30000/tcp, 0.0.0.0:50000->50000/tcp                                                           electrs
1fb82221fe98   ghcr.io/vulpemventures/elements:latest            "elementsd -datadir=…"   4 minutes ago   Up 4 minutes   0.0.0.0:18884->18884/tcp, 0.0.0.0:18886->18886/tcp, 0.0.0.0:38332-38333->38332-38333/tcp                     liquid
4fbe9a799da4   ghcr.io/getumbrel/docker-bitcoind:v29.0           "bitcoind"               4 minutes ago   Up 4 minutes   8332-8333/tcp, 0.0.0.0:18443-18444->18443-18444/tcp, 18332-18333/tcp, 0.0.0.0:28332-28333->28332-28333/tcp   bitcoin

[bonomat]

How did you run the app? In a simulator or native on desktop? Just so that I can try to reproduce.

[ethicnology]

iOS simulator