Name provided not a properly formed account name - powershell

Question

Can someone help with another error I'm experiencing?
My create user script is giving me another error.
foreach ($User in $ADUsers)
{
#Read user data from each field in each row and assign the data to a variable as below
$Username = $User.ID
$Password = $User.BDATE
$Firstname = $User.FNAME
$Lastname = $User.LNAME
$Department = $User.GRD
$Company = $User.SCHID #This field refers to the OU the user account is to be moved to
# Choose OU
switch ($Company)
{
"1480" {$OU = 'OU=students,OU=users,ou=hs,dc=clasd,dc=net'}
"1479" {$OU = 'OU=students,OU=users,ou=elem,dc=clasd,dc=net'}
"1480" {$Folder = '\\hs-ss\students\hs'}
"1479" {$Folder = '\\hs-ss\students\elem'}
}
#Account will be created in the OU provided by the $OU variable read from the CSV file
New-ADUser `
-SamAccountName $Username `
-UserPrincipalName "$Username#clasd.net" `
-Name $Firstname $Lastname `
-GivenName $Firstname `
-Department "$Department" `
-Company "$Company" `
-EmailAddress "$Username#clasd.net" `
-Surname $Lastname `
-Enabled $True `
-Scriptpath "login.vbs" `
-DisplayName "$Firstname $Lastname" `
-Path $OU `
-Homedrive "Z" `
-homedirectory "$Folder\$username" `
-AccountPassword (ConvertTo-SecureString "$User.BDATE" -AsPlainText -Force) `
-ChangePasswordAtLogon $true
}
My error is:
New-ADUser : The name provided is not a properly formed account name
At C:\AD_Scripts\psscripts\user_create.ps1:34 char:9
+ New-ADUser `
+ ~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (CN=\\ ,OU=stude...dc=clasd,dc=net:String) [New-ADUser], ADException
+ FullyQualifiedErrorId : The name provided is not a properly formed account name,Microsoft.ActiveDirectory.Management.Commands.NewADUser
EDIT 1
If I Write-Host $Firstname $Lastname I get "User2 User2" which is correct.
EDIT 2
The account still gets created even with that message I receive.
Edit 3
I've gone ahead and splatted things like I've been told. I'm still struggling with the same error though. Only this time the user does NOT get created.
# Import active directory module for running AD cmdlets
Import-Module activedirectory
#Store the data from ADUsers.csv in the $ADUsers variable
$ADUsers = Import-csv userimport.csv
#Store report in log file in the $log variable
$log = "log.txt"
#Set Additional Variables
$Password = (ConvertTo-SecureString -AsPlainText "$User.BDATE" -Force)
$DisplayName = "$User.FNAME+ ' ' + $user.LNAME"
$Company = $User.SCHID
# Choose OU
Switch ($Company)
{
"1480" {$OU = 'OU=students,OU=users,ou=hs,dc=clasd,dc=net'}
"1479" {$OU = 'OU=students,OU=users,ou=elem,dc=clasd,dc=net'}
"1480" {$Folder = '\\hs-ss\students\hs'}
"1479" {$Folder = '\\hs-ss\students\elem'}
}
Write-Host $DisplayName
#Create Hash Table for New User Creation
$ADUsers = #{
'SamAccountName' = "$User.ID"
'UserPrincipalName' = "$User.ID + '#clasd.net'"
'GivenName' = "$User.FNAME"
'SurName' = "$User.LNAME"
'EmailAddress' = "$User.ID = '#clasd.net'"
'Path' = $OU
'Department' = "$User.GRD"
'Company' = "$User.SCHID"
'AccountPassword' = $Password
'ChangePasswordAtLogon' = $true
'Enabled' = $true
'DisplayName' = "$DisplayName"
'Name' = $Displayname
}
#Call New-ADUser with the parameters Above
Foreach ($User in $ADUsers) {
New-ADUser #ADUsers}
PS C:\AD_Scripts\psscripts> .\Untitled1.ps1
CN=User2 User2,OU=Students,OU=Users,OU=Elem,DC=clasd,DC=net.FNAME+ ' ' + CN=User2 User2,OU=Students,OU=Users,OU=Elem,DC=clasd,DC=net.LNAME
New-ADUser : The name provided is not a properly formed account name
At C:\AD_Scripts\psscripts\Untitled1.ps1:48 char:1
+ New-ADUser #ADUsers}
+ ~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (CN=CN\=User2 Us...dc=clasd,dc=net:String) [New-ADUser], ADException
+ FullyQualifiedErrorId : The name provided is not a properly formed account name,Microsoft.ActiveDirectory.Management.Commands.NewADUser

Answer 1

I've updated powershell to version 4 and I no longer receive any errors in my original script that I posted. Previously I was using Ver 3