HelloWorld 0.78.6 UWP app fails to hermes.lib load error on run

[tero-paananen]

Problem Description

I created React Native HelloWorld 0.78.6 UWP old arch app and running application on debug fails into hermes.dll try to load msvcp140_app.dll library load error.

Steps To Reproduce

Create following hello world

npx @react-native-community/cli init hello078 --version "0.78.2"
cd hello078
yarn add react-native-windows@0.78.6
npx react-native init-windows --overwrite --template old/uwp-cs-app
yarn install

Check that you really have new arch disabled. There have to be flag <RnwNewArch>false</RnwNewArch> in ExperimentalProperties.props

<?xml version="1.0" encoding="utf-8"?>
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup Label="Microsoft.ReactNative Experimental Features">
    <UseHermes>true</UseHermes>
    <UseExperimentalNuget>false</UseExperimentalNuget>
    <ReactExperimentalFeaturesSet>true</ReactExperimentalFeaturesSet>
    <RnwNewArch>false</RnwNewArch>
  </PropertyGroup>
</Project>

Build debug and run it on Visual Studio 2022.

I get error on application start

Exception thrown at 0x00007FFA318A3028 (msvcp140_app.dll) in hello078.exe: 0xC0000005: Access violation reading location 0x0000000000000000.


Microsoft.ReactNative.dll!Microsoft::ReactNative::SafeLoadLibrary(const wchar_t * fileName, unsigned long dwFlags) Line 33
	at C:\Users\tepaa\Developer\hello078\node_modules\react-native-windows\Shared\SafeLoadLibrary.cpp(33)


 	msvcp140_app.dll!00007ffa318a3028()	Unknown
 	hermes.dll!00007ffa28b01100()	Unknown
 	hermes.dll!00007ffa28931120()	Unknown
 	ucrtbase.dll!00007ffb09aae473()	Unknown
 	hermes.dll!00007ffa28be27a5()	Unknown
 	hermes.dll!00007ffa28be290f()	Unknown
 	ntdll.dll!00007ffb0c089a1d()	Unknown
 	ntdll.dll!00007ffb0c0dd2f7()	Unknown
 	ntdll.dll!00007ffb0c0dd08a()	Unknown
 	ntdll.dll!00007ffb0c0ad947()	Unknown
 	ntdll.dll!00007ffb0c08fbae()	Unknown
 	ntdll.dll!00007ffb0c0873e4()	Unknown
 	ntdll.dll!00007ffb0c086af4()	Unknown
 	KernelBase.dll!00007ffb09c11ea2()	Unknown
>	Microsoft.ReactNative.dll!Microsoft::ReactNative::SafeLoadLibrary(const wchar_t * fileName, unsigned long dwFlags) Line 33	C++
 	Microsoft.ReactNative.dll!Microsoft::ReactNative::LoadLibraryAsPeerFirst(const wchar_t * fileName) Line 69	C++
 	Microsoft.ReactNative.dll!Microsoft::ReactNative::`anonymous namespace'::HermesFuncResolver::HermesFuncResolver() Line 43	C++
 	Microsoft.ReactNative.dll!Microsoft::ReactNative::`anonymous namespace'::initHermesApi() Line 54	C++
 	Microsoft.ReactNative.dll!Microsoft::ReactNative::`anonymous namespace'::getHermesApi() Line 62	C++
 	Microsoft.ReactNative.dll!Microsoft::ReactNative::HermesRuntimeHolder::initRuntime() Line 319	C++
 	Microsoft.ReactNative.dll!Microsoft::ReactNative::HermesRuntimeHolder::getRuntime::__l2::<lambda_1>::operator()() Line 363	C++
 	[External Code]	
 	Microsoft.ReactNative.dll!Microsoft::ReactNative::HermesRuntimeHolder::getRuntime() Line 364	C++
 	Microsoft.ReactNative.dll!facebook::react::`anonymous namespace'::OJSIExecutorFactory::createJSExecutor(std::shared_ptr<facebook::react::ExecutorDelegate> delegate, std::shared_ptr<facebook::react::MessageQueueThread> jsQueue) Line 232	C++
 	Microsoft.ReactNative.dll!facebook::react::NativeToJsBridge::NativeToJsBridge(facebook::react::JSExecutorFactory * jsExecutorFactory, std::shared_ptr<facebook::react::ModuleRegistry> registry, std::shared_ptr<facebook::react::MessageQueueThread> jsQueue, std::shared_ptr<facebook::react::InstanceCallback> callback) Line 114	C++
 	[External Code]	
 	Microsoft.ReactNative.dll!facebook::react::Instance::initializeBridge::__l2::<lambda_1>::operator()() Line 63	C++
 	[External Code]	
 	Microsoft.ReactNative.dll!Mso::React::MessageDispatchQueue::tryFunc(const std::function<void __cdecl(void)> & func) Line 41	C++
 	Microsoft.ReactNative.dll!Mso::React::MessageDispatchQueue::runOnQueueSync::__l2::<lambda_1>::operator()() Line 74	C++
 	Microsoft.ReactNative.dll!Mso::FunctorRef<void __cdecl(void)>::FunctorRefWrapper<`Mso::React::MessageDispatchQueue::runOnQueueSync'::`2'::<lambda_1>>::Invoke() Line 187	C++
 	Microsoft.ReactNative.dll!Mso::FunctorRef<void __cdecl(void)>::operator()() Line 159	C++
 	Microsoft.ReactNative.dll!Mso::React::MessageDispatchQueue::runSync::__l2::<lambda_1>::operator()() Line 56	C++
 	Microsoft.ReactNative.dll!Mso::DispatchTaskImpl<`Mso::React::MessageDispatchQueue::runSync'::`2'::<lambda_1>,`Mso::React::MessageDispatchQueue::runSync'::`2'::<lambda_2>>::Invoke() Line 748	C++
 	Microsoft.ReactNative.dll!Mso::QueueService::InvokeTask(Mso::Functor<void __cdecl(void)> && task, std::optional<std::chrono::time_point<std::chrono::steady_clock,std::chrono::duration<__int64,std::ratio<1,1000000000>>>> endTime) Line 208	C++
 	Microsoft.ReactNative.dll!Mso::LooperScheduler::RunLoop(const Mso::WeakPtr<Mso::LooperScheduler> & weakSelf) Line 59	C++
 	Microsoft.ReactNative.dll!Mso::LooperScheduler::{ctor}::__l1::<lambda_34_>::operator()() Line 37	C++
 	[External Code]	

'hello078.exe' (Win32): Loaded 'C:\Windows\System32\cryptbase.dll'. 
'hello078.exe' (Win32): Loaded 'C:\Program Files\WindowsApps\Microsoft.NET.CoreFramework.Debug.2.2_2.2.31327.1_x64__8wekyb3d8bbwe\System.Numerics.Vectors.dll'. 
'hello078.exe' (Win32): Loaded 'C:\Program Files\WindowsApps\Microsoft.NET.CoreFramework.Debug.2.2_2.2.31327.1_x64__8wekyb3d8bbwe\System.Runtime.WindowsRuntime.UI.Xaml.dll'. 
'hello078.exe' (Win32): Loaded 'C:\Program Files\WindowsApps\Microsoft.NET.CoreFramework.Debug.2.2_2.2.31327.1_x64__8wekyb3d8bbwe\System.Private.Uri.dll'. 
'hello078.exe' (Win32): Loaded 'C:\Windows\System32\Windows.Graphics.dll'. 
'hello078.exe' (Win32): Loaded 'C:\Users\tepaa\Developer\hello078\windows\hello078\bin\x64\Debug\AppX\hermes.dll'. 
'hello078.exe' (Win32): Loaded 'C:\Windows\System32\icuuc.dll'. 
'hello078.exe' (Win32): Loaded 'C:\Windows\System32\icuin.dll'. 
'hello078.exe' (Win32): Unloaded 'C:\Windows\System32\icuuc.dll'
'hello078.exe' (Win32): Unloaded 'C:\Windows\System32\icuin.dll'
'hello078.exe' (Win32): Loaded 'C:\Program Files\WindowsApps\Microsoft.VCLibs.140.00.Debug_14.0.30704.0_x64__8wekyb3d8bbwe\vcruntime140_1_app.dll'. 
'hello078.exe' (Win32): Loaded 'C:\Program Files\WindowsApps\Microsoft.VCLibs.140.00.Debug_14.0.30704.0_x64__8wekyb3d8bbwe\msvcp140_app.dll'. 
'hello078.exe' (Win32): Loaded 'C:\Windows\System32\icuuc.dll'. 
'hello078.exe' (Win32): Loaded 'C:\Windows\System32\icuin.dll'. 
'hello078.exe' (Win32): Loaded 'C:\Windows\System32\icu.dll'. 
Exception thrown at 0x00007FFE51063028 (msvcp140_app.dll) in hello078.exe: 0xC0000005: Access violation reading location 0x0000000000000000.

hello078\windows\hello078\packages.lock.json

"dependencies": {
    "UAP,Version=v10.0.17763": {
      "Microsoft.JavaScript.Hermes": {
        "type": "Direct",
        "requested": "[0.0.0-2505.2001-0e4bc3b9, )",
        "resolved": "0.0.0-2505.2001-0e4bc3b9",
        "contentHash": "VNSUBgaGzJ/KkK3Br0b9FORkCgKqke54hi48vG42xRACIlxN+uLFMz0hRo+KHogz+Fsn+ltXicGwQsDVpmaCMg=="
      },

Expected Results

No response

CLI version

15.0.1

Environment

System:
  OS: Windows 10 10.0.19045
  CPU: (12) x64 Intel(R) Core(TM) i9-8950HK CPU @ 2.90GHz
  Memory: 18.54 GB / 31.90 GB
Binaries:
  Node:
    version: 20.18.0
    path: C:\Program Files\nodejs\node.EXE
  Yarn:
    version: 1.22.19
    path: C:\Program Files (x86)\Yarn\bin\yarn.CMD
  npm:
    version: 10.8.2
    path: C:\Program Files\nodejs\npm.CMD
  Watchman: Not Found
SDKs:
  Android SDK: Not Found
  Windows SDK:
    AllowDevelopmentWithoutDevLicense: Enabled
    AllowAllTrustedApps: Enabled
    Versions:
      - 10.0.18362.0
      - 10.0.19041.0
      - 10.0.22000.0
      - 10.0.22621.0
IDEs:
  Android Studio: Not Found
  Visual Studio:
    - 17.9.34607.119 (Visual Studio Community 2022)
Languages:
  Java: Not Found
  Ruby:
    version: 2.6.1
    path: C:\Ruby26-x64\bin\ruby.EXE
npmPackages:
  "@react-native-community/cli":
    installed: 15.0.1
    wanted: 15.0.1
  react:
    installed: 19.0.0
    wanted: 19.0.0
  react-native:
    installed: 0.78.2
    wanted: 0.78.2
  react-native-windows:
    installed: 0.78.6
    wanted: 0.78.6
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: true
  newArchEnabled: true
iOS:
  hermesEnabled: Not found
  newArchEnabled: Not found

Community Modules

No response

Target Platform Version

None

Target Device(s)

Desktop

Visual Studio Version

Visual Studio 2022

Build Configuration

Debug

Snack, code example, screenshot, or link to a repository

No response

[similar-issues-ai]

We've found some similar issues:

• New 0.78.0 app with new arch template crashes shortly after lunch #14394 , similarity score: 82%

If any of the above are duplicates, please consider closing this issue out and adding additional context in the original issue.

Note: You can give me feedback by 👍 or 👎 this comment.

[tero-paananen]

No issue on RNW 0.77

npx @react-native-community/cli init hello077 --version "0.77.2"
cd hello077
yarn add react-native-windows@0.77.5
npx react-native init-windows --overwrite --template old/uwp-cs-app
yarn install

Again remember to set <RnwNewArch>false</RnwNewArch> into ExperimentalProperties.props.

0.77 app builds and run on Visual Studio.

hello077\windows\hello077\packages.lock.json

"dependencies": {
    "UAP,Version=v10.0.17763": {
      "Microsoft.JavaScript.Hermes": {
        "type": "Direct",
        "requested": "[0.1.23, )",
        "resolved": "0.1.23",
        "contentHash": "cA9t1GjY4Yo0JD1AfA//e1lOwk48hLANfuX6GXrikmEBNZVr2TIX5ONJt5tqCnpZyLz6xGiPDgTfFNKbSfb21g=="
      },

[tero-paananen]

No issue on 0.78.6 release build with hello world.

Disabling these seems not to help on 0.78.6 debug build:

InstanceSettings.UseDirectDebugger = false;
InstanceSettings.UseDeveloperSupport = false;

[tero-paananen]

I tested with latest Hermes <HermesVersion>0.0.0-2506.2001-27e0d76a</HermesVersion> but same error.

 "dependencies": {
    "UAP,Version=v10.0.17763": {
      "Microsoft.JavaScript.Hermes": {
        "type": "Direct",
        "requested": "[0.0.0-2506.2001-27e0d76a, )",
        "resolved": "0.0.0-2506.2001-27e0d76a",
        "contentHash": "9hQGc/xQar0ZamEZXrMLkxyNUMfor/HMEC8oAJ5lCV+jsHvxDk/sAsvMHqtsHiqDIt+FH0XZSYNiT+bXyXnlqg=="
      },

https://www.nuget.org/packages/Microsoft.JavaScript.Hermes/0.0.0-2506.2001-27e0d76a

[tero-paananen]

HelloWorld UWP, debug, cpp, new/old arch enabled fails too

Now this starts to be interesting. This cpp app in debug does not work either from VisualStudio with <RnwNewArch>false</RnwNewArch>. Is this somehow my mistake now?

npx @react-native-community/cli init hello078default --version "0.78.2"
cd hello078default
yarn add react-native-windows@0.78.6
npx react-native init-windows --overwrite

This app does not even start with new arch <RnwNewArch>true</RnwNewArch> and flags in App.cpp disabled:

#if BUNDLE
    JavaScriptBundleFile(L"index.windows");
    InstanceSettings().UseFastRefresh(false);
#else
    JavaScriptBundleFile(L"index");
    InstanceSettings().UseFastRefresh(false);// changed to false
#endif

#if _DEBUG
    InstanceSettings().UseDirectDebugger(false);// changed to false
    InstanceSettings().UseDeveloperSupport(false); // changed to false
#else
    InstanceSettings().UseDirectDebugger(false);
    InstanceSettings().UseDeveloperSupport(false);
#endif

Same error

Exception thrown at 0x00007FFDE7703028 (msvcp140_app.dll) in hello078default.exe: 0xC0000005: Access violation reading location 0x0000000000000000.

C:\Users\tepaa\Developer\hello078default\windows\x64\Debug\hello078default\AppX\msvcp140_app.amd64.pdb: Cannot find or open the PDB file

msvcp140_app.amd64.pdb contains the debug information required to find the source for the module msvcp140_app.dll

[tero-paananen]

AI says about error

Hermes DLL is loading, but then crashing inside DllMain() or static C++ initialization, specifically inside msvcp140_app.dll — the MSVC UWP runtime.

Hermes DLL begins to load, but when its dependencies are initialized — such as msvcp140_app.dll — the access violation (0xC0000005) occurs.

This is almost always caused by:
A missing or mismatched runtime (Microsoft.VCLibs.140.00.Debug or Release).
Mixing debug vs. release binaries (e.g., Hermes built for Release, app built for Debug).
Corrupt or mismatched NuGet install for VC runtime.

[tero-paananen]

Possible solution

After updating into latest Visual Studio 17.14.4 starts HelloWorld RNW 0.78 app (uwp, cpp, debug and new/old arch) to work.

I think that somehow right Microsoft.VCLibs is now used. I do not know where Microsoft.VCLibs comes, maybe from MSVC v143.

Could it be important to notify in RNW 0.78 release info that use latest Visual Studio? https://github.com/microsoft/react-native-windows/releases/tag/react-native-windows_v0.78.0

[jonthysell]

Glad to see you got it working with a VS update. @vmoroz Did anything change with how we build hermes in 0.78?

Note, @tero-paananen , you can't just change RnwNewArch to switch between architectures. It's decided at project creation time - old template gives you old, new template gives you new, they're different kinds of projects. The flag is there to make sure any native modules you add get the message and align.

You certainly can't flip it for the old/uwp-cs-app template.