Error: Data path don't exist, even if data path is correct

[SwagatRanjit84]

OCR Error: Error: Data path does not exist! at createErrorFromErrorData (C:\reactnativeapp\ocr\node_modules\react-native\Libraries\BatchedBridge\NativeModules.js:146) at C:\reactnativeapp\ocr\node_modules\react-native\Libraries\BatchedBridge\NativeModules.js:95 at MessageQueue.invokeCallback (C:\reactnativeapp\ocr\node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:414) at C:\reactnativeapp\ocr\node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:127 at MessageQueue.guard (C:\reactnativeapp\ocr\node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:314) at MessageQueue.invokeCallbackAndReturnFlushedQueue (C:\reactnativeapp\ocr\node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:126) at debuggerWorker.js:72

Data path is : file:///storage/emulated/0/documents/a.jpg which is absolutely correct Inside document folder there is an image called "a.jpg" still there is error

[chetankotkar]

same error. Any solutions ?

[SwagatRanjit84]

@chetankotkar Didn't find the solution. I tried with image inside the project structure and used require('./img.png'). Also with the correct datapath of image inside phone gallery. Didn't work either

[ziyafenn]

@SwagatRanjit84 still nothing?

[SwagatRanjit84]

@ziyafenn No idea man, whats going on? DId you solve it?

[ziyafenn]

@SwagatRanjit84 should post the fix tomorrow.

[SwagatRanjit84]

@ziyafenn fast as possible

[nasseh101]

getting the same error

[SwagatRanjit84]

@ziyafenn @nasseh101 Any solutions found?

[vmvini]

I had this same error 'Data path does not exist'. When investigating the source code, this error is thrown by the TessBaseAPI.init(String datapath, String language) method, so its not related to the image path, its related to the tessdata path.

init is called as tessBaseApi.init(DATA_PATH, getConstants().get(lang).toString()); DATA_PATH is defined on the class RNTesseractOcrModule in this line: private static String DATA_PATH = Environment.getExternalStorageDirectory().toString() + File.separator

So, its not accessing the assets folder within our project because its impossible for a library to do it without context, its accessing directly through the external storage path, concatenating later to the project's name: Environment.getExternalStorageDirectory().toString() + File.separator + reactContext.getPackageName() + File.separator which evaluates to: /storage/emulated/0/com.projectsname/

The folder /storage/emulated/0/com.projectsname/ is there when I open on my pc, but later the TessBaseAPI code executes: if (!datapathFile.exists()) throw new IllegalArgumentException("Data path does not exist!"); And cant find the folder... So, I dont know why it didnt find the /storage/emulated/0/com.projectsname/. And inside the /storage/emulated/0/com.projectsname/, the folder 'tessdata' is not there also even though I placed the tessdata folder inside android/app/src/main/assets/

But, I could do the tesseract work changing DATA_PATH to : private static String DATA_PATH = Environment.getExternalStorageDirectory().toString() + File.separator + Environment.DIRECTORY_DOWNLOADS + File.separator;

then I commented the line that concatenates the path with the projects directory : public RNTesseractOcrModule(ReactApplicationContext reactContext) { super(reactContext); this.reactContext = reactContext; //if (!this.DATA_PATH.contains(reactContext.getPackageName())) // this.DATA_PATH += reactContext.getPackageName() + File.separator; } And finally, I moved my tessdata to my android downloads folder.

Its not the solution I want, but at least I could do the tesseract work, later I will try something else.

[mihailpreda]

The path is correct, but you need to grant read/write permissions : add in android/app/src/main/AndroidManifest.xml : <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

Then you need to use AndroidPermissions , so import {PermissionsAndroid} from 'react-native'; and then define something like this :

 requestRWPermissions= async ()=> {
        const checkReadExternalStorage = PermissionsAndroid.check(PermissionsAndroid.PERMISSIONS.READ_EXTERNAL_STORAGE);
        const checkWriteExternalStorage = PermissionsAndroid.check(PermissionsAndroid.PERMISSIONS.WRITE_EXTERNAL_STORAGE);
        if (checkReadExternalStorage === PermissionsAndroid.RESULTS.GRANTED && checkWriteExternalStorage === PermissionsAndroid.RESULTS.GRANTED ) {
            //alert("You've have read/write permission");
        } else {
            try {
                const grantedRead = await PermissionsAndroid.request(PermissionsAndroid.PERMISSIONS.READ_EXTERNAL_STORAGE,
                    {
                        'title': 'FollowUP App required read external storage permission',
                        'message': 'We required read external storage permission in order to get device location ' +
                            'Please grant us.'
                    }
                )
                const grantedWrite = await PermissionsAndroid.request(PermissionsAndroid.PERMISSIONS.WRITE_EXTERNAL_STORAGE,
                    {
                        'title': 'FollowUP App required write external storage permission',
                        'message': 'We required write external storage permission in order to get device location ' +
                            'Please grant us.'
                    }
                )
                if (grantedRead === PermissionsAndroid.RESULTS.GRANTED && grantedWrite === PermissionsAndroid.RESULTS.GRANTED) {
                    this.takePicture();

                } else {
                    //alert("You don't have read/write permission");
                }
            } catch (err) {
                alert(err)
            }
        }
    };

and takePicture is something like :

    takePicture = async () => {
        if (this.camera) {
            const options = { quality: 0.9, base64: true };
            const data = await this.camera.takePictureAsync(options);

            const tessOptions = {
                whitelist: null, 
                blacklist: '1234567890\'!"#$%&/()={}[]+*-_:;<>'
              };

            RNTesseractOcr.recognize(data.uri.replace('file://', ''), 'LANG_ENGLISH', tessOptions)
                .then((result) => {
                  this.setState({ ocrResult: result });
                  console.log("OCR Result: ", result);
                })
                .catch((err) => {
                  console.log("OCR Error: ", err);
                })
                .done();
        }
    }

or try after you install it on phone to give manually from file explorer the permissions

[stale[bot]]

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