(NOBRIDGE) FEHLER TypeError: Die Eigenschaft „install“ von null [Component Stack] kann nicht gelesen werden.

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Expand view Topic review: (NOBRIDGE) FEHLER TypeError: Die Eigenschaft „install“ von null [Component Stack] kann nicht gelesen werden.

by Guest » 11 Jan 2025, 09:27

Ich versuche, eine native React-App mit expo zu erstellen und bin hier hängengeblieben
Image

Ich bleibe bei dieser Zeile hängen
"import { InferenceSession, Tensor } from 'onnxruntime-react-native';"
Als ich diese Zeile entfernte und den Code änderte (entfernte diese verwendeten Funktionen: { InferenceSession, Tensor ), bekomme ich keine Fehlermeldungen. Aber ich möchte, dass onnxruntime-react-native verwendet wird.
Wenn Sie das Problem verstehen, ignorieren Sie die folgenden Aussagen:
Ich entwickle mithilfe von Expo eine React Native-App, in der ich ein ONNX-Modell zur Gesichtserkennung integrieren möchte. Mit der App können Benutzer ein Bild auswählen, es vorverarbeiten und mithilfe der ONNX Runtime für React Native Inferenzen ausführen. Allerdings stoße ich während der Entwicklung auf mehrere Probleme:
Hier ist die Ausgabe, die ich in der Anwendung sehe:
Image

Hier ist der Code, den ich in index.jsx geschrieben habe ~ ich ersetzt index.tsx mit jsx:

Code: Select all

import React, { useState } from 'react';
import { View, Button, Image, Text, StyleSheet, Platform } from 'react-native';
import * as ImagePicker from 'expo-image-picker';
import { InferenceSession, Tensor } from 'onnxruntime-react-native';
import * as FileSystem from 'expo-file-system';

export default function App () {
const [imageUri, setImageUri] = useState(null);
const [output, setOutput] = useState(null);

// Load the ONNX model
const loadModel = async () => {
try {
const modelPath =
Platform.OS === 'android'
? `file:///android_asset/face_encoder.onnx` // Android path for assets
: `${FileSystem.documentDirectory}face_encoder.onnx`; // iOS path

// Load the ONNX model
const session = await InferenceSession.create(modelPath);
return session;
} catch (error) {
console.error('Error loading model:', error);
}
};

// Process image and run inference
const processImage = async (session) => {
if (!imageUri) return;

try {
// Convert image to tensor (mocked for simplicity)
// In practice, preprocess the image (resize to 224x224, normalize, etc.)
const inputTensor = new Float32Array(3 * 224 * 224).fill(0.5);
const tensor = new Tensor('float32', inputTensor, [1, 3, 224, 224]);

// Run inference
const feeds = { input: tensor };
const results = await session.run(feeds);

// Process results
setOutput(results.output.data);
} catch (error) {
console.error('Error processing image:', error);
}
};

const handleLoadImage = async () => {
const result = await ImagePicker.launchImageLibraryAsync({
mediaTypes: ImagePicker.MediaTypeOptions.Images,
allowsEditing: true,
aspect: [4, 3],
quality: 1,
});

if (!result.canceled) {
setImageUri(result.uri);
}
};

const handleRunModel = async () => {
const session = await loadModel();
if (session) {
await processImage(session);
}
};

return (

Face Recognition App
{imageUri && }


{output &&  Output: {JSON.stringify(output)}}

);
};

const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#fff',
},
image: {
width: 200,
height: 200,
marginVertical: 20,
},
});
Hier ist die app.json:

Code: Select all

{
"expo": {
"name": "FceDetectionApp",
"slug": "FceDetectionApp",
"version": "1.0.0",
"orientation": "portrait",
"icon": "./assets/images/icon.png",
"scheme": "myapp",
"userInterfaceStyle": "automatic",
"newArchEnabled": true,
"ios": {
"supportsTablet": true
},
"android": {
"adaptiveIcon": {
"foregroundImage": "./assets/images/adaptive-icon.png",
"backgroundColor": "#ffffff"
},
"package": "Face.Files"
},
"web": {
"bundler": "metro",
"output": "static",
"favicon": "./assets/images/favicon.png"
},
"plugins": [
"expo-router",
[
"expo-splash-screen",
{
"image": "./assets/images/splash-icon.png",
"imageWidth": 200,
"resizeMode": "contain",
"backgroundColor": "#ffffff"
}
]
],
"experiments": {
"typedRoutes": true
},
"extra": {
"router": {
"origin": false
},
"eas": {
"projectId": "81f38c43-7dd5-4bfc-ad5d-fbb101bd1d3a"
}
}
}
}
Package.json-Abhängigkeiten:

Code: Select all

 "dependencies": {
"@expo/vector-icons": "^14.0.2",
"@react-navigation/bottom-tabs": "^7.2.0",
"@react-navigation/native": "^7.0.14",
"expo": "~52.0.23",
"expo-blur": "~14.0.1",
"expo-constants": "~17.0.3",
"expo-font": "~13.0.2",
"expo-haptics": "~14.0.0",
"expo-image-picker": "^16.0.3",
"expo-linking": "~7.0.3",
"expo-router": "~4.0.15",
"expo-splash-screen": "~0.29.18",
"expo-status-bar": "~2.0.0",
"expo-symbols": "~0.2.0",
"expo-system-ui": "~4.0.6",
"expo-web-browser": "~14.0.1",
"onnxruntime-react-native": "^1.20.1",
"react": "18.3.1",
"react-dom": "18.3.1",
"react-native": "0.76.5",
"react-native-gesture-handler": "~2.20.2",
"react-native-get-random-values": "~1.11.0",
"react-native-reanimated": "~3.16.1",
"react-native-safe-area-context": "4.12.0",
"react-native-screens": "~4.4.0",
"react-native-web": "~0.19.13",
"react-native-webview": "13.12.5"
},
"devDependencies": {
"@babel/core": "^7.25.2",
"@types/jest": "^29.5.12",
"@types/react": "~18.3.12",
"@types/react-test-renderer": "^18.3.0",
"jest": "^29.2.1",
"jest-expo": "~52.0.2",
"react-test-renderer": "18.3.1",
"typescript": "^5.3.3"
},

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