Get all Teams and channel information using PowerShell

Hi everyone

I'm trying to export a list of all teams in our environment along with their associated channels to CSV.  I have used the script below previously (although this was around a year ago) but am now getting an error saying that Connect-PnPGraph is not recognised.

I'm not sure what's changed and I can't seem to find any documentation on how I can resolve this issue?  I've updated my PnP PowerShell cmdlets but the issue still occurs.  The script I'm using is below and I'd really appreciate any help anyone can give.  Alternatively, if there is another way I can get this information exported I'd be really interested.

Thanks in advance.

function Export-TeamsList
{
param (
$ExportPath
)
process{
Connect-PnPMicrosoftGraph -Scopes "Group.Read.All","User.ReadBasic.All"
$accesstoken =Get-PnPAccessToken
$group = Invoke-RestMethod -Headers @{Authorization = "Bearer $accesstoken"} -Uri "https://graph.microsoft.com/v1.0/groups?`$filter=groupTypes/any(c:c+eq+`'Unified`')" -Method Get
$TeamsList = @()
do
{
foreach($value in $group.value)
{
"Group Name: " + $value.displayName + " Group Type: " + $value.groupTypes
if($value.groupTypes -eq "Unified")
{
$id= $value.id
Try
{
$team = Invoke-RestMethod -Headers @{Authorization = "Bearer $accesstoken"} -Uri https://graph.microsoft.com/beta/Groups/$id/channels -Method Get
"Channel count for " + $value.displayName + " is " + $team.value.id.count
}
Catch
{
"Could not get channels for " + $value.displayName + ". " + $_.Exception.Message
$team = $null
}
If($team.value.id.count -ge 1)
{
$Owner = Invoke-RestMethod -Headers @{Authorization = "Bearer $accesstoken"} -Uri https://graph.microsoft.com/v1.0/Groups/$id/owners -Method Get
$Teams = "" | Select "TeamsName","TeamType","Channelcount","ChannelName","Owners"
$Teams.TeamsName = $value.displayname
$Teams.TeamType = $value.visibility
$Teams.ChannelCount = $team.value.id.count
$Teams.ChannelName = $team.value.displayName -join ";"
$Teams.Owners = $Owner.value.userPrincipalName -join ";"
$TeamsList+= $Teams
$Teams=$null
}
}
}
if ($group.'@odata.nextLink' -eq $null )
{
break
}
else
{
$group = Invoke-RestMethod -Headers @{Authorization = "Bearer $accesstoken"} -Uri $group.'@odata.nextLink' -Method Get
}
}while($true);
$TeamsList |Export-csv $ExportPath -NoTypeInformation
}
}
Export-TeamsList -ExportPath "C:\teamslist.csv"