使用Bicep部署Azure Data Factory时出现参数缺失错误

我参考微软官方的文件移动模板，用Bicep部署Azure Data Factory（ADF）。在ADF UI里编辑运行管道一切正常，但从ADF导出ARM模板转换成带相同参数的Bicep模板后，部署时收到错误：

Status Message: Missing parameter definition for SourceStore_Location,SourceStore_Directory

我能不能这么引用参数？有没有人做过类似操作？

resource dataFactoryPipeline 'Microsoft.DataFactory/factories/pipelines@2018-06-01' = {
  parent: dataFactory
  name: pipelineName
  properties: {
       parameters: {
      SourceStoreLocation : {
        type: 'String'
        defaultValue: 'xxxx\\xxxx\\xxxx\\xxxx'
      }
      DestinationStoreLocation : {
        type: 'String'
        defaultValue: 'xxxx\\xxxx'
      }
      SourceStoreDirectory : {
        type: 'String'
        defaultValue: 'xxxx'
      }
      DestinationStoreDirectory : {
        type: 'String'
        defaultValue: 'xxxx'
      }
    }
    activities: [
      {
        name : 'GetFileList'
        type: 'GetMetadata'
        typeProperties: {
          dataset: {
            referenceName: sourceDataSetName
            type: 'DatasetReference'
            parameters: {
              FolderPath: {
                value : '@pipeline().parameters.SourceStore_Location'
                type: 'Expression'
              }
              Directory: {
                value: '@pipeline().parameters.SourceStore_Directory'
                type: 'Expression'
              }
            }
          }
          fieldList: ['childItems']
          storeSettings: {
            type: 'FileServerReadSettings'
            recursive: true
          }
          formatSettings: {
            type: 'DelimitedTextReadSettings'
          }
        }

      }
      {
        name : 'FilterFiles'
        type: 'Filter'
        dependsOn: [
          {
            activity: 'GetFileList'
            dependencyConditions: [
              'Succeeded'
            ]
          }
        ]
        typeProperties: {
         
         
        items:{
          value: '@activity(\'GetFileList\').output.childItems'
          type: 'Expression'
        }
        condition: {
          value: '@equals(item().type, \'File\')'
          type: 'Expression'
        }
        }

      }
      {
        name : 'ForEachFile'
        type: 'ForEach'
        dependsOn: [
          {
            activity: 'FilterFiles'
            dependencyConditions: [
              'Succeeded'
            ]
          }
        ]
        typeProperties: {
          items: { 
          value : '@activity(\'FilterFiles\').output.value'
          type : 'Expression'
        }
        activities: [
          {
            name : 'CopyFile'
            type: 'Copy'
            typeProperties: {
              source: {
                type: 'DelimitedTextSource' 
                storeSettings: {
                  type: 'FileServerReadSettings'
                  recursive: true 
                }
                formatSettings: {
                  type: 'DelimitedTextReadSettings'
                }
              }
              sink: {
                type: 'DelimitedTextSink'
                storeSettings: {
                  type: 'AzureFileStorageWriteSettings'
                }
                formatSettings: {
                  type: 'DelimitedTextWriteSettings'
                  quoteAllText: true 
                  fileExtension: '.txt'
                }

              }
            }
            inputs: [
              {
                 referenceName: sourceDataSetFileName
                 type: 'DatasetReference'
                 parameters: {
                  FolderPath: {
                    value : '@pipeline().parameters.SourceStore_Location'
                    type: 'Expression'
                  }
                  Directory: {
                    value: '@pipeline().parameters.SourceStore_Directory'
                    type: 'Expression'
                  }
                  FileName: {
                    value: '@item().name'
                    type: 'Expression'
                  }
                 }     
              }
            ]
            outputs: [
              {
                referenceName: sinkDataSetName
                type: 'DatasetReference'
                parameters: {
                  FolderPath: {
                    value : '@pipeline().parameters.SourceStore_Location'
                    type: 'Expression'
                  }
                  Directory: {
                    value: '@pipeline().parameters.SourceStore_Directory'
                    type: 'Expression'
                  }
                  FileName: {
                    value: '@item().name'
                    type: 'Expression'
                  }
                }
              }
            ]
          }
        { 
          name : 'DeleteFiles'
          type: 'Delete'
          dependsOn: [
            {
              activity: 'CopyFile'
              dependencyConditions: [
                'Succeeded'
              ]
            }
          ]
          typeProperties: {
            dataset: {
              referenceName: sourceDataSetFileName
              type: 'DatasetReference'
              parameters: {
                FolderPath: {
                  value : '@pipeline().parameters.SourceStore_Location'
                  type: 'Expression'
                }
                Directory: {
                  value: '@pipeline().parameters.SourceStore_Directory'
                  type: 'Expression'
                }
                FileName: {
                  value: '@item().name'
                  type: 'Expression'
                }
              }
            }
            storeSettings: {
              type: 'FileServerReadSettings'
              recursive: true 
            }
          }

        }
        ]
        
         
        }

      }
      
    ]
 
  }
  dependsOn: [
    sinkDataSet
    sourceDataSet
    sourceDataSetFile
  ]
}

错误核心是管道参数定义名和表达式引用名不匹配：

• 你在管道parameters里定义的是SourceStoreLocation、SourceStoreDirectory（无中间下划线）
• 但活动表达式里引用的是SourceStore_Location、SourceStore_Directory（多了中间下划线）

有两种修正方式：

1. 修改管道参数名，和表达式保持一致：将SourceStoreLocation改为SourceStore_Location，SourceStoreDirectory改为SourceStore_Directory
2. 修改表达式引用，和管道参数名保持一致：将所有@pipeline().parameters.SourceStore_Location改为@pipeline().parameters.SourceStoreLocation，@pipeline().parameters.SourceStore_Directory改为@pipeline().parameters.SourceStoreDirectory

另外，ARM转Bicep的过程偶尔会出现这类命名格式偏差，部署前一定要核对参数定义和引用的名称完全一致。

内容的提问来源于stack exchange，提问作者ProgH