Powershell script to change assembly and file version

ChangeAssemblyVersion.ps1

Param (
    [Parameter(Mandatory=$true)]
    [string[]] $AssemblyInfoFilesPath,
    [Parameter(Mandatory=$true)]
    [Version] $Version
)

$ErrorActionPreference = 'Stop'  # Stops executing on error instead of silent continue.
Set-StrictMode -Version Latest   # Enforces coding rules in expressions, scripts, and script blocks. Uninitialized variables are not permitted.

function Change-AssemblyVersion([string] $assemblyInfoFilePath, [Version] $newVersion)
{
    $fileContent = Get-Content $assemblyInfoFilePath | Out-String
    $assemblyVersionReplacePattern = '(AssemblyVersion\(")\d+\.\d+\.\d+\.\d+("\))'
    $fileVersionReplacePattern = '(AssemblyFileVersion\(")\d+\.\d+\.\d+\.\d+("\))'

    $fileContent = [RegEx]::Replace($fileContent, $assemblyVersionReplacePattern, '${1}' + $newVersion + '${2}')
    $fileContent = [RegEx]::Replace($fileContent, $fileVersionReplacePattern, '${1}' + $newVersion + '${2}')

    $fileContent | Out-File $assemblyInfoFilePath
}

function Normalize-Version([Version] $version)
{
    $newBuild = If ($version.Build -ge 0) { $version.Build } Else { 0 }
    $newRevision = If ($version.Revision -ge 0) { $version.Revision } Else { 0 }

    New-Object Version($version.Major, $version.Minor, $newBuild, $newRevision)
}

$Version = Normalize-Version $Version

$AssemblyInfoFilesPath | ForEach-Object { Change-AssemblyVersion $_ $Version }

Not working( just removes old version and leaves it empty. windows 10, dll of .net framework

Not working( just removes old version and leaves it empty. windows 10, dll of .net framework

you need to set the path of "AssemblyInfo.cs" file, not ".dll" files