D365FO: duplicate model ID's

Each D365FO binary model or model with source code has a model ID. In theory it should be unique, however in real life sometimes model ID conflict could happen. 

Model ID could be found in \Bin\ <model_name>_ModelInfo.md in binary format or \Descriptor\<model_name>.xml file in plain text.

Typically, when you have a model ID conflict on developer VM, the error message will contain conflicting model names, so it is easy to find and fix one of the model ID's. However, on the build VM the error message just says "An item with the same key has already been added", so it is up to you to figure out what is going on.

It could be time consuming to check all the model IDs manually, so I made a simple PowerShell script to retrieve all the model IDs and report any conflicts found.

$rootFolder = "K:\AosService\PackagesLocalDirectory"
$descriptorFolder = "Descriptor"
$binaryFolder = "Bin"

$hashTable = @{}

$conflictCounter = 0

foreach($file in (Get-ChildItem -Path $rootFolder | where {($_.psiscontainer)}))
{
    $descriptorFolderPath = Join-Path -Path $file.FullName -ChildPath $descriptorFolder
    $binaryFolderPath = Join-Path -Path $file.FullName -ChildPath $binaryFolder

    # model with source code    
    if (Test-Path -Path $descriptorFolderPath)
    {
        foreach($xmlFile in (Get-ChildItem -Path $descriptorFolderPath -Recurse -Include *.xml))
        {
            Write-Output $xmlFile.FullName

            $xml = [xml](Get-Content $xmlFile.FullName)
            Write-Output $xml.AxModelInfo.Id

            #check for duplicates
            if ($hashTable[$xml.AxModelInfo.Id])
            {
                $Host.UI.WriteErrorLine("DUPLICATE ID DETECTED!")
                $Host.UI.WriteErrorLine("Previous model with the same id $xml.AxModelInfo.Id :")
                $Host.UI.WriteErrorLine($hashTable[$xml.AxModelInfo.Id])

                $conflictCounter += 1
            }
            else
            {
                $hashTable.Add($xml.AxModelInfo.Id, $xmlFile.FullName)
            }
        }
    }
    
    #binary model, could be both binary and model with source code in the same folder
    if (Test-Path -Path $binaryFolderPath)
    {
        foreach($binaryFile in (Get-ChildItem -Path $binaryFolderPath -Recurse -Include *_ModelInfo.md))
        {
            $zeroSix = [byte]06
            $zeroSixFound = 0
            $bytesFound = [byte[]]::new(4)
            $iterationCounter = 0

            Write-Output $binaryFile.FullName

            foreach($byte in Get-Content $binaryFile.FullName -encoding byte)
            {
                if ($zeroSixFound)
                {
                    $bytesFound[$iterationCounter] = $byte

                    $iterationCounter = $iterationCounter + 1

                    if ($iterationCounter -eq 4)
                    {
                        break
                    }
                }

                # $byte | Format-Hex

                if ($byte -eq $zeroSix)
                {
                    $zeroSixFound = 1
                }
            }

            $binaryModelId = $bytesFound[3] + ($bytesFound[2] * 16) + ($bytesFound[1] * 16 * 16) + ($bytesFound[0] * 16 * 16 * 16)

            Write-Output $binaryModelId

            #check for duplicates
            if ($hashTable[$binaryModelId])
            {
                $Host.UI.WriteErrorLine("DUPLICATE ID DETECTED!")
                $Host.UI.WriteErrorLine("Previous model with the same id $binaryModelId :")
                $Host.UI.WriteErrorLine($hashTable[$binaryModelId])

                $conflictCounter += 1
            }
            else
            {
                $hashTable.Add($binaryModelId, $binaryFile.FullName)
            }
        }
    }
}

Write-Output ""
Write-Output "Conflicts counter: $conflictCounter"