ML Kit条形码处理失败，因为图像已关闭

分类：编程问答

如何解决ML Kit条形码处理失败，因为图像已关闭

我正在寻找几天如何使用ML Kit和CameraX读取QR码。输入图像的过程始终返回失败“ IllegalStateException：图像已关闭”。我看过不同的论坛，但找不到我做错的事情。我认为我正在遵循Google文档，但无法正常工作。

这是我在MainActivity中所做的：

  1. 我创建一个TextureView，向我显示相机的输入
  2. 我在检查必要的权限后启动相机
  3. 我设置了一个“预览”用例
  4. 我设置了“图像分析”用例
  5. 我设置了一个分析器，该分析器创建一个InputImage，该图像将传递到条形码扫描仪过程
  6. 使用用例“预览”和“图像分析”设置我的LifeCycle

我正在使用CameraX版本“ 1.0.0-alpha04”和“ com.google.mlkit：条形码扫描：16.0.3”。

build.gradle 

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'

android {
    compileSdkVersion 30
    buildToolsVersion "30.0.2"

    defaultConfig {
        applicationId "be.lapit.qrcodescanner"
        minSdkVersion 21
        targetSdkVersion 30
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'),'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: "libs",include: ["*.jar"])
    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    implementation 'androidx.core:core-ktx:1.3.2'
    implementation 'androidx.appcompat:appcompat:1.2.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.0.1'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'

    // ML Kit Barcode scanner
    implementation 'com.google.mlkit:barcode-scanning:16.0.3'
    implementation 'com.google.android.gms:play-services-mlkit-barcode-scanning:16.1.2'

    // CameraX
    def camerax_version = "1.0.0-alpha04"
    // The following line is optional,as the core library is included indirectly by camera-camera2
    implementation "androidx.camera:camera-core:${camerax_version}"
    implementation "androidx.camera:camera-camera2:${camerax_version}"
    // If you want to additionally use the CameraX Lifecycle library
    //implementation "androidx.camera:camera-lifecycle:${camerax_version}"
    // If you want to additionally use the CameraX View class
    //implementation "androidx.camera:camera-view:1.0.0-alpha17"

}

activity_main.xml 

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
   xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:app="http://schemas.android.com/apk/res-auto"
   android:layout_width="match_parent"
   android:layout_height="match_parent">

   <LinearLayout
       android:id="@+id/linearLayout"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:gravity="center"
       android:orientation="vertical"
       app:layout_constraintBottom_toBottomOf="parent"
       app:layout_constraintEnd_toEndOf="parent"
       app:layout_constraintStart_toStartOf="parent">


       <ImageView
           android:id="@+id/imageView"
           android:layout_width="250px"
           android:layout_height="250px"
           android:layout_marginBottom="48dp"
           android:src="@drawable/thumb_up" />

       <TextView
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:text="Test textview"/>

       <TextureView
           android:id="@+id/texture_view"
           android:layout_width="600px"
           android:layout_height="600px" />


   </LinearLayout>

</androidx.constraintlayout.widget.ConstraintLayout>

MainActivity.kt 

package be.lapit.qrcodescanner

import android.Manifest
import android.content.Intent
import android.content.pm.PackageManager
import android.os.Bundle
import android.util.Log
import android.util.Size
import android.view.TextureView
import android.widget.Button
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity
import androidx.camera.core.*
import androidx.core.app.ActivityCompat
import androidx.core.content.ContextCompat
import androidx.lifecycle.LifecycleOwner
import com.google.android.gms.tasks.OnFailureListener
import com.google.mlkit.vision.barcode.Barcode
import com.google.mlkit.vision.barcode.BarcodeScannerOptions
import com.google.mlkit.vision.barcode.BarcodeScanning
import com.google.mlkit.vision.common.InputImage
import java.time.Instant
import java.time.format.DateTimeFormatter
import kotlin.system.measureTimeMillis


class MainActivity : AppCompatActivity() {

    // PLA: Variable needed to check if user has granted camera permission
    companion object {
        private const val REQUEST_CAMERA_PERMISSION = 10
    }

    private lateinit var textureView: TextureView

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        textureView = findViewById(R.id.texture_view)

        // Request camera permissions
        if (isCameraPermissionGranted()) {
            textureView.post { startCamera() }
        } else {
            ActivityCompat.requestPermissions(
                this,arrayOf(Manifest.permission.CAMERA),REQUEST_CAMERA_PERMISSION
            )
        }


    }

    private fun startCamera() {
        // -----------------------
        // Setup use case Preview
        // -----------------------
        val previewConfig : PreviewConfig = PreviewConfig.Builder()
            // We want to show input from front camera of the device
            .setLensFacing(CameraX.LensFacing.FRONT)
            .build()

        val preview = Preview(previewConfig)

        preview.setOnPreviewOutputUpdateListener { previewOutput ->
            textureView.setSurfaceTexture(previewOutput.surfaceTexture)
        }

        // ------------------------------
        // Setup use case Image Analysis
        // ------------------------------
        val imageAnalysisConfig = ImageAnalysisConfig.Builder()
            .setTargetResolution(Size(1280,720))
            .setLensFacing(CameraX.LensFacing.FRONT)
            .setImageReaderMode(ImageAnalysis.ImageReaderMode.ACQUIRE_LATEST_IMAGE)
            .setImageQueueDepth(1)
            .build()

        val imageAnalysis = ImageAnalysis(imageAnalysisConfig)

        // -------------------
        // Set image analyzer
        // -------------------
        imageAnalysis.setAnalyzer { imageProxy: ImageProxy,rotationDegrees: Int ->
            Log.i("Status","In setAnalyzer on " + System.currentTimeMillis())

            val mediaImage = imageProxy.image
            if (mediaImage != null) {
                val image1 = InputImage.fromMediaImage(mediaImage,rotationDegrees)

                // --------------------------
                // Configure barcode scanner
                // --------------------------
                val barcodeScannerOptions: BarcodeScannerOptions = BarcodeScannerOptions.Builder()
                    .setBarcodeFormats(
                        Barcode.FORMAT_QR_CODE,Barcode.FORMAT_AZTEC,Barcode.FORMAT_EAN_13

                    )
                    .build()

                // Get an instance of BarcodeScanner
                val scanner = BarcodeScanning.getClient(barcodeScannerOptions)

                scanner.process(image1)
                    .addOnSuccessListener ({ barcodes ->
                        // Task completed successfully
                        Log.i("Status","In success listener on timestamp " + System.currentTimeMillis())
                        for (barcode in barcodes) {
                            Log.i("Barcode",barcode.toString())
                        }
                        Toast.makeText(this,"Ik ben hier eindelijk",Toast.LENGTH_LONG).show();

                    })
                    .addOnFailureListener(OnFailureListener {
                        // Process failed
                        Log.i("Status","In failure listener on " +  System.currentTimeMillis() + " because: $it")
                        Log.i("Failure","$it")
                        it.printStackTrace()
                    })
                    .addOnCompleteListener {
                        Log.i("Status","In complete listener on " +  System.currentTimeMillis())
                        //imageProxy.close()
                    }
            }
        }

        // Bind
        CameraX.bindToLifecycle(this as LifecycleOwner,preview,imageAnalysis)
    }


    private fun isCameraPermissionGranted(): Boolean {
        val selfPermission = ContextCompat.checkSelfPermission(
            baseContext,Manifest.permission.CAMERA
        )
        return selfPermission == PackageManager.PERMISSION_GRANTED
    }

    override fun onRequestPermissionsResult(
        requestCode: Int,permissions: Array<String>,grantResults: IntArray
    ) {
        if (requestCode == REQUEST_CAMERA_PERMISSION) {
            if (isCameraPermissionGranted()) {
                textureView.post { startCamera() }
            } else {
                Toast.makeText(this,"Camera permission is required.",Toast.LENGTH_SHORT).show()
                finish()
            }
        }
    }
}

记录信息 

I/Status: In setAnalyzer on 1602190069609
I/tflite: Initialized TensorFlow Lite runtime.
I/native: barcode_detector_client.cc:238 Not using NNAPI
I/Status: In failure listener on 1602190069612 because: com.google.mlkit.common.MlKitException: Internal error has occurred when executing ML Kit tasks
I/Failure: com.google.mlkit.common.MlKitException: Internal error has occurred when executing ML Kit tasks
W/System.err: com.google.mlkit.common.MlKitException: Internal error has occurred when executing ML Kit tasks
        at com.google.mlkit.common.sdkinternal.ModelResource.zza(com.google.mlkit:common@@17.0.0:32)
        at com.google.mlkit.common.sdkinternal.zzl.run(com.google.mlkit:common@@17.0.0)
W/System.err:     at com.google.mlkit.common.sdkinternal.zzp.run(com.google.mlkit:common@@17.0.0:3)
        at com.google.mlkit.common.sdkinternal.MlKitThreadPool.zzd(com.google.mlkit:common@@17.0.0:24)
        at com.google.mlkit.common.sdkinternal.MlKitThreadPool.zza(com.google.mlkit:common@@17.0.0:30)
        at com.google.mlkit.common.sdkinternal.zzh.run(com.google.mlkit:common@@17.0.0)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
        at java.lang.Thread.run(Thread.java:762)
    Caused by: java.lang.IllegalStateException: Image is already closed
        at android.media.Image.throwISEIfImageIsInvalid(Image.java:68)
        at android.media.ImageReader$SurfaceImage$SurfacePlane.getBuffer(ImageReader.java:803)
        at com.google.mlkit.vision.barcode.internal.zzf.zza(com.google.android.gms:play-services-mlkit-barcode-scanning@@16.1.2:72)
        at com.google.mlkit.vision.barcode.internal.zzf.zzb(com.google.android.gms:play-services-mlkit-barcode-scanning@@16.1.2:83)
        at com.google.mlkit.vision.barcode.internal.zzf.run(com.google.android.gms:play-services-mlkit-barcode-scanning@@16.1.2:143)
        at com.google.mlkit.vision.common.internal.MobileVisionBase.zza(com.google.mlkit:vision-common@@16.1.0:23)
        at com.google.mlkit.vision.common.internal.zzc.call(com.google.mlkit:vision-common@@16.1.0)
        at com.google.mlkit.common.sdkinternal.ModelResource.zza(com.google.mlkit:common@@17.0.0:29)
        ... 8 more
I/Status: In complete listener on 1602190069614
    In failure listener on 1602190069614 because: com.google.mlkit.common.MlKitException: Internal error has occurred when executing ML Kit tasks
I/Failure: com.google.mlkit.common.MlKitException: Internal error has occurred when executing ML Kit tasks
W/System.err: com.google.mlkit.common.MlKitException: Internal error has occurred when executing ML Kit tasks
        at com.google.mlkit.common.sdkinternal.ModelResource.zza(com.google.mlkit:common@@17.0.0:32)
        at com.google.mlkit.common.sdkinternal.zzl.run(com.google.mlkit:common@@17.0.0)
        at com.google.mlkit.common.sdkinternal.zzp.run(com.google.mlkit:common@@17.0.0:3)
        at com.google.mlkit.common.sdkinternal.MlKitThreadPool.zzd(com.google.mlkit:common@@17.0.0:24)
        at com.google.mlkit.common.sdkinternal.MlKitThreadPool.zza(com.google.mlkit:common@@17.0.0:30)
        at com.google.mlkit.common.sdkinternal.zzh.run(com.google.mlkit:common@@17.0.0)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
        at java.lang.Thread.run(Thread.java:762)
W/System.err: Caused by: java.lang.IllegalStateException: Image is already closed
        at android.media.Image.throwISEIfImageIsInvalid(Image.java:68)
        at android.media.ImageReader$SurfaceImage$SurfacePlane.getBuffer(ImageReader.java:803)
        at com.google.mlkit.vision.barcode.internal.zzf.zza(com.google.android.gms:play-services-mlkit-barcode-scanning@@16.1.2:72)
        at com.google.mlkit.vision.barcode.internal.zzf.zzb(com.google.android.gms:play-services-mlkit-barcode-scanning@@16.1.2:83)
        at com.google.mlkit.vision.barcode.internal.zzf.run(com.google.android.gms:play-services-mlkit-barcode-scanning@@16.1.2:143)
        at com.google.mlkit.vision.common.internal.MobileVisionBase.zza(com.google.mlkit:vision-common@@16.1.0:23)
        at com.google.mlkit.vision.common.internal.zzc.call(com.google.mlkit:vision-common@@16.1.0)
        at com.google.mlkit.common.sdkinternal.ModelResource.zza(com.google.mlkit:common@@17.0.0:29)
        ... 8 more
I/Status: In complete listener on 1602190069615

解决方法

我不确定100％是否与此有关，但是您可以尝试将CameraX依赖项更新为最新版本吗？您的是1.0.0-alpha04，而最新的是1.0.0-beta10。 https://developer.android.com/jetpack/androidx/releases/camera

对于您正在使用的API-setImageReaderMode（ImageAnalysis.ImageReaderMode.ACQUIRE_LATEST_IMAGE），我在CameraX开发人员站点上找不到它了：https://developer.android.com/reference/androidx/camera/core/ImageAnalysis

.setImageQueueDepth（1）似乎不适用于默认策略：https://developer.android.com/reference/androidx/camera/core/ImageAnalysis.Builder#setImageQueueDepth(int)

另一个小建议：您当前在每个帧中创建一个新的BarcodeDetector，这可能会很慢。在分析器外部创建一次并重用同一实例可能会更好。

希望一些要点有帮助：）

,

为了帮助其他人，我在这里发布了最新的（有效的）代码

Build.gradle 

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'

android {
    compileSdkVersion 30
    buildToolsVersion "30.0.2"

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    defaultConfig {
        applicationId "be.lapit.qrcodescanner"
        minSdkVersion 21
        targetSdkVersion 30
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'),'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: "libs",include: ["*.jar"])
    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    implementation 'androidx.core:core-ktx:1.3.2'
    implementation 'androidx.appcompat:appcompat:1.2.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.0.1'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'

    // ML Kit Barcode scanner
    implementation 'com.google.mlkit:barcode-scanning:16.0.3'
    implementation 'com.google.android.gms:play-services-mlkit-barcode-scanning:16.1.2'

    // CameraX
    def camerax_version = "1.0.0-alpha10"
    // The following line is optional,as the core library is included indirectly by camera-camera2
    implementation "androidx.camera:camera-core:${camerax_version}"
    implementation "androidx.camera:camera-camera2:${camerax_version}"
    // If you want to additionally use the CameraX Lifecycle library
    implementation "androidx.camera:camera-lifecycle:${camerax_version}"
    // If you want to additionally use the CameraX View class
    implementation "androidx.camera:camera-view:1.0.0-alpha17"
    // If you want to additionally use the CameraX Extensions library
    implementation "androidx.camera:camera-extensions:1.0.0-alpha17"

}

activity_main.xml 

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:id="@+id/linearLayout"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent">


        <Button
            android:id="@+id/btnGallery"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Get picture"></Button>

        <FrameLayout
            android:id="@+id/container"
            android:layout_width="450px"
            android:layout_height="450px">
            <androidx.camera.view.PreviewView
                android:id="@+id/preview_view"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:background="@color/colorRed"
                android:layout_gravity="center" />
        </FrameLayout>


    </LinearLayout>

</androidx.constraintlayout.widget.ConstraintLayout>

MainActivity.kt 

package be.lapit.qrcodescanner

import android.Manifest
import android.content.Intent
import android.content.pm.PackageManager
import android.os.Bundle
import android.util.Log
import android.util.Size
import android.view.TextureView
import android.widget.Button
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity
import androidx.camera.core.*
import androidx.camera.core.impl.ImageAnalysisConfig
import androidx.camera.core.impl.PreviewConfig
import androidx.camera.lifecycle.ProcessCameraProvider
import androidx.camera.view.PreviewView
import androidx.core.app.ActivityCompat
import androidx.core.content.ContextCompat
import androidx.lifecycle.LifecycleOwner
import com.google.android.gms.tasks.OnFailureListener
import com.google.common.util.concurrent.ListenableFuture
import com.google.mlkit.vision.barcode.Barcode
import com.google.mlkit.vision.barcode.BarcodeScannerOptions
import com.google.mlkit.vision.barcode.BarcodeScanning
import com.google.mlkit.vision.common.InputImage
import java.time.Instant
import java.time.format.DateTimeFormatter
import kotlin.system.measureTimeMillis


class MainActivity : AppCompatActivity() {

    // PLA: Variable needed to check if user has granted camera permission
    companion object {
        private const val REQUEST_CAMERA_PERMISSION = 10
    }

    private lateinit var cameraProviderFuture : ListenableFuture<ProcessCameraProvider>
    private lateinit var previewView: PreviewView

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        previewView = findViewById(R.id.preview_view)

        // Request camera permissions
        if (isCameraPermissionGranted()) {
            previewView.post { startCamera() }
        } else {
            ActivityCompat.requestPermissions(
                this,arrayOf(Manifest.permission.CAMERA),REQUEST_CAMERA_PERMISSION
            )
        }


    }

    private fun startCamera() {
        // -----------------------
        // Setup use case Preview
        // -----------------------
        cameraProviderFuture = ProcessCameraProvider.getInstance(this)

        cameraProviderFuture.addListener(Runnable {
            val cameraProvider = cameraProviderFuture.get()
            bindPreview(cameraProvider)
        },ContextCompat.getMainExecutor(this))

    }


    fun bindPreview(cameraProvider : ProcessCameraProvider) {
        var preview : Preview = Preview.Builder()
            .build()

        var cameraSelector : CameraSelector = CameraSelector.Builder()
            .requireLensFacing(CameraSelector.LENS_FACING_FRONT)
            .build()

        var previewView: PreviewView = findViewById(R.id.preview_view)
        preview.setSurfaceProvider(previewView.surfaceProvider)

        val imageAnalysis = ImageAnalysis.Builder()
            .setTargetResolution(Size(1280,720))
            .setBackpressureStrategy(ImageAnalysis.STRATEGY_KEEP_ONLY_LATEST)
            .build()

        // Define options for barcode scanner
        val options = BarcodeScannerOptions.Builder()
            .setBarcodeFormats(
                Barcode.FORMAT_QR_CODE,Barcode.FORMAT_AZTEC)
            .build()

        imageAnalysis.setAnalyzer(ContextCompat.getMainExecutor(this),ImageAnalysis.Analyzer { imageProxy ->
            val rotationDegrees = imageProxy.imageInfo.rotationDegrees

            // Initiate barcode scanner
            val scanner = BarcodeScanning.getClient(options)

            // insert your code here.
            @androidx.camera.core.ExperimentalGetImage
            val mediaImage = imageProxy.image

            @androidx.camera.core.ExperimentalGetImage
            if (mediaImage != null) {
                val image = InputImage.fromMediaImage(mediaImage,imageProxy.imageInfo.rotationDegrees)

                // Pass image to an ML Kit Vision API
                @androidx.camera.core.ExperimentalGetImage
                val result = scanner.process(image)
                    .addOnSuccessListener { barcodes ->
                        // Task completed successfully
                        Log.i("Status","In success listener")
                        for (barcode in barcodes) {
                            val bounds = barcode.boundingBox
                            val corners = barcode.cornerPoints

                            val rawValue = barcode.rawValue
                            Log.i("QR code",rawValue.toString())

                            val valueType = barcode.valueType
                            // See API reference for complete list of supported types
                            when (valueType) {
                                Barcode.TYPE_WIFI -> {
                                    val ssid = barcode.wifi!!.ssid
                                    val password = barcode.wifi!!.password
                                    val type = barcode.wifi!!.encryptionType
                                }
                                Barcode.TYPE_URL -> {
                                    val title = barcode.url!!.title
                                    val url = barcode.url!!.url
                                }
                            }
                        }
                    }
                    .addOnFailureListener {
                        // Task failed with an exception
                        Log.i("Status","In failure listener")
                    }
                    .addOnCompleteListener{
                        // Task failed with an exception
                        Log.i("Status","In on complete listener")
                        imageProxy.close()
                    }
            }

        })

        cameraProvider.bindToLifecycle(this as LifecycleOwner,cameraSelector,imageAnalysis,preview)
    }


    private fun isCameraPermissionGranted(): Boolean {
        val selfPermission = ContextCompat.checkSelfPermission(
            baseContext,Manifest.permission.CAMERA
        )
        return selfPermission == PackageManager.PERMISSION_GRANTED
    }

    override fun onRequestPermissionsResult(
        requestCode: Int,permissions: Array<String>,grantResults: IntArray
    ) {
        if (requestCode == REQUEST_CAMERA_PERMISSION) {
            if (isCameraPermissionGranted()) {
                previewView.post { startCamera() }
            } else {
                Toast.makeText(this,"Camera permission is required.",Toast.LENGTH_SHORT).show()
                finish()
            }
        }
    }
}

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错误1：private field ‘xxx‘ is never assigned 按Altʾnter快捷键，选择第2项 参考：https://blog.csdn.net/shi_hong_fei_hei/article/details/88814070 错误2：启动时报错，不能找到主启动类 #
pip安装依赖失败
报错如下，通过源不能下载，最后警告pip需升级版本 Requirement already satisfied: pip in c:\users\ychen\appdata\local\programs\python\python310\lib\site-packages (22.0.4) Coll
maven常见错误
错误1：maven打包报错 错误还原：使用maven打包项目时报错如下 [ERROR] Failed to execute goal org.apache.maven.plugins:maven-resources-plugin:3.2.0:resources (default-resources)
cloud项目中常见错误
错误1：服务调用时报错 服务消费者模块assess通过openFeign调用服务提供者模块hires 如下为服务提供者模块hires的控制层接口 @RestController @RequestMapping(&quot;/hires&quot;) public class FeignControl
springboot常见错误
错误1：运行项目后报如下错误 解决方案 报错2：Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project sb 解决方案：在pom.
springmvc拦截器中使用redisTemplate报空指针异常
参考 错误原因 过滤器或拦截器在生效时，redisTemplate还没有注入 解决方案：在注入容器时就生效 @Component //项目运行时就注入Spring容器 public class RedisBean { @Resource private RedisTemplate&lt;String
vite报错：npm ERR! command C:WINDOWSsystem32cmd.exe /d /s /c C:UsersychenAppDataLocalTempnpx-dde1c848.cmd
使用vite构建项目报错 C:\Users\ychen\work&gt;npm init @vitejs/app @vitejs/create-app is deprecated, use npm init vite instead C:\Users\ychen\AppData\Local\npm-
VM VirtualBox中安装centos时报错：设置基础软件仓库时出错
参考1 参考2 解决方案 # 点击安装源 协议选择 http:// 路径填写 mirrors.aliyun.com/centos/8.3.2011/BaseOS/x86_64/os URL类型 软件库URL 其他路径 # 版本 7 mirrors.aliyun.com/centos/7/os/x86
kafka常见问题
报错1 [root@slave1 data_mocker]# kafka-console-consumer.sh --bootstrap-server slave1:9092 --topic topic_db [2023-12-19 18:31:12,770] WARN [Consumer clie
hive常见问题
错误1 # 重写数据 hive (edu)&gt; insert overwrite table dwd_trade_cart_add_inc &gt; select data.id, &gt; data.user_id, &gt; data.course_id, &gt; date_format(
装载数据时报错：Failed to execute spark task, with exception 'org.apache.hadoop.hive.ql.metadata.HiveException(Failed to create spark client.)'
错误1 hive (edu)&gt; insert into huanhuan values(1,&#39;haoge&#39;); Query ID = root_20240110071417_fe1517ad-3607-41f4-bdcf-d00b98ac443e Total jobs = 1
flume常见问题
报错1：执行到如下就不执行了，没有显示Successfully registered new MBean. [root@slave1 bin]# /usr/local/software/flume-1.9.0/bin/flume-ng agent -n a1 -c /usr/local/softwa
hadoop集群常见错误
虚拟及没有启动任何服务器查看jps会显示jps，如果没有显示任何东西 [root@slave2 ~]# jps 9647 Jps 解决方案 # 进入/tmp查看 [root@slave1 dfs]# cd /tmp [root@slave1 tmp]# ll 总用量 48 drwxr-xr-x. 2
hive常见错误
报错1 hive&gt; show databases; OK Failed with exception java.io.IOException:java.lang.RuntimeException: Error in configuring object Time taken: 0.474 se
Linux常见错误
报错1 [root@localhost ~]# vim -bash: vim: 未找到命令 安装vim yum -y install vim* # 查看是否安装成功 [root@hadoop01 hadoop]# rpm -qa |grep vim vim-X11-7.4.629-8.el7_9.x
使用sqoop一直卡在：mapreduce.Job: Running job: job_1703173956074_0001
修改hadoop配置 vi /usr/local/software/hadoop-2.9.2/etc/hadoop/yarn-site.xml # 添加如下 &lt;configuration&gt; &lt;property&gt; &lt;name&gt;yarn.nodemanager.res
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