我正在尝试使用Azure DevOps管道构建映像并将其推送到Azure容器注册表，但收到以下错误：

"base name (${BUILD_IMAGE}) should not be blank"

在尝试构建映像时。我检查了我的管道配置文件，但找不到定义的变量BUILD_IMAGE。从错误消息来看，该变量似乎正在Dockerfile的FROM语句中使用，但我不知道应该在哪里定义它。我检查了管道配置文件、触发管道的脚本和命令行，但我找不到变量的定义位置。我还检查了带有标签$(Build.BuildId)或510914的图像aquariumcms是否存在于注册表rgaquariumtestimagewesteu.azurecr.io中，以及是否可以从管道访问它，但我找不到任何问题。我的管道正在使用Docker@2和DockerCompose@0任务，容器注册表是rgaquariumtestimagewesteu.azurecr.io，如何添加变量BUILD_IMAGE，使其不再为空，管道可以构建映像并将其推送到容器注册表？

The pipeline

# Docker
# Build and push an image to Azure Container Registry
# https://docs.microsoft.com/azure/devops/pipelines/languages/docker

trigger:
- Initial-K8-Setup

resources:
- repo: self

variables:
  # Container registry service connection established during pipeline creation
  dockerRegistryServiceConnection: '7739b21f-2572-4f36-ab8b-df15ab821756'
  imageRepository: 'aquariumcms'
  containerRegistry: 'rgAquariumTestImageWestEU.azurecr.io'
  dockerfilePath: '$(Build.SourcesDirectory)/Dockerfile'
  tag: '$(Build.BuildId)'

  # Agent VM image name
  vmImageName: 'ubuntu-latest'

stages:
- stage: Build
  displayName: Build and push stage
  jobs:
  - job: Build
    displayName: Build
    pool:
      vmImage: $(vmImageName)
    steps:
    - task: Docker@2
      displayName: Build and push an image to container registry
      inputs:
        command: buildAndPush
        repository: $(imageRepository)
        dockerfile: $(dockerfilePath)
        containerRegistry: $(dockerRegistryServiceConnection)
        tags: |
          $(tag)
    - task: DockerCompose@0
      inputs:
        containerregistrytype: 'Azure Container Registry'
        azureSubscription: 'HAWeb2-CFS-NonProd'
        azureContainerRegistry: '{"loginServer":"rgAquariumTestImageWestEU.azurecr.io", "id" : "/subscriptions/5e2acfcb-7aeb-443d-9ea4-bc7553a51276/resourceGroups/rg-haweb-cfs-nonprod-web2-001/providers/Microsoft.ContainerRegistry/registries/rgAquariumTestImageWestEU"}'
        dockerComposeFile: '**/docker-compose.yml'
        additionalDockerComposeFiles: 'docker-compose.override.yml'
        dockerComposeFileArgs: 'REGISTRY=rgAquariumTestImageWestEU.azurecr.io/'
        action: 'Build services'
        additionalImageTags: '$(Build.BuildNumber)-$(Build.SourceBranchName)'
        includeLatestTag: true
    - task: DockerCompose@0
      inputs:
        containerregistrytype: 'Azure Container Registry'
        azureSubscription: 'HAWeb2-CFS-NonProd'
        azureContainerRegistry: '{"loginServer":"rgAquariumTestImageWestEU.azurecr.io", "id" : "/subscriptions/5e2acfcb-7aeb-443d-9ea4-bc7553a51276/resourceGroups rg-haweb-cfs-nonprod-web2-001/providers/Microsoft.ContainerRegistry/registries/rgAquariumTestImageWestEU"}'
        dockerComposeFile: '**/docker-compose.yml'
        additionalDockerComposeFiles: 'docker-compose.override.yml'
        dockerComposeFileArgs: 'REGISTRY=rgAquariumTestImageWestEU.azurecr.io/'
        action: 'Push services'
        additionalImageTags: '$(Build.BuildNumber)-$(Build.SourceBranchName)'
        includeLatestTag: true

预期管道将生成映像并将其推送到管道配置文件中指定的Azure容器注册表。但是，管道在尝试生成映像时失败，并显示错误消息“基本名称（${BUILD_IMAGE}）不应为空”，这表明BUILD_IMAGE变量为空或未定义。
尽管我收到了以下错误日志

Starting: Build and push an image to container registry
    ==============================================================================
    Task         : Docker
    Description  : Build or push Docker images, login or logout, start or stop containers, or run a Docker command
    Version      : 2.214.0
    Author       : Microsoft Corporation
    Help         : https://aka.ms/azpipes-docker-tsg
    ==============================================================================
    /usr/bin/docker build -f /home/vsts/work/1/s/Dockerfile --label com.azure.dev.image.system.teamfoundationcollectionuri=https://dev.azure.com/dgsit/ --label com.azure.dev.image.system.teamproject=Sitecore --label com.azure.dev.image.build.repository.name=aquarium-cms --label com.azure.dev.image.build.sourceversion=dad7e8024ac8bba9b7b58bce934cdc96729da5cb --label com.azure.dev.image.build.repository.uri=https://dgsit@dev.azure.com/dgsit/Sitecore/_git/aquarium-cms --label com.azure.dev.image.build.sourcebranchname=Initial-K8-Setup --label com.azure.dev.image.build.definitionname=aquarium-cms (1) --label com.azure.dev.image.build.buildnumber=20230118.7 --label com.azure.dev.image.build.builduri=vstfs:///Build/Build/511111 -t ***/aquariumcms:511111 /home/vsts/work/1/s
    Sending build context to Docker daemon   15.5MB
    
    Step 1/29 : ARG BASE_IMAGE
    Step 2/29 : ARG BUILD_IMAGE
    Step 3/29 : FROM ${BUILD_IMAGE} AS prep
    base name (${BUILD_IMAGE}) should not be blank
    ##[error]base name (${BUILD_IMAGE}) should not be blank
    ##[error]The process '/usr/bin/docker' failed with exit code 1
    Finishing: Build and push an image to container registry