Getting type mismatch error when setting Worksheet.Name to a cell.value in VBA - excel

Question

I have written the following code to create worksheet with names same as the names in first column of Sheet1
I am getting a TypeError when trying to set the name on the new worksheet but don't know why. Can someone help?
Sub CreateWorkSheets()
'
' Macro5 Macro
'
'
Dim r As Range
Set r = Sheets("Sheet1").Columns(1)
For Each cell In r
Dim aa As String
Dim newSheet As Worksheet
Set newSheet = Sheets.Add(After:=Sheets(Sheets.Count))
strTemp = cell.Value
newSheet.Name = strTemp // Error Here
Next cell
End Sub
I tried the following code as well and that doesn't work either even though strValue is valid
Sub Test1()
Sheets("Sheet1").Select
Dim x As Integer
' Set numrows = number of rows of data.
NumRows = Range("A2", Range("A2").End(xlDown)).rows.Count
' Select cell a1.
Range("A2").Select
' Establish "For" loop to loop "numrows" number of times.
For x = 1 To NumRows
Dim newSheet As Worksheet
Set newSheet = Sheets.Add(After:=Sheets(Sheets.Count))
Sheets("Sheet1").Range("B1").Value = "A" + Trim(Str(x))
strValue = "A" + Trim(Str(x))
newSheet.Name = Str(Sheets("Sheet1").Range(strValue).Value)
Next
End Sub

Answer 1

Apparently because you set:
Set r = Sheets("Sheet1").Columns(1)
It set the cell object to column $A:$A instead of $A$1 like you would think. I put this in the immediate window when I ran into the "cell.value" line:
?cell.Address
$A:$A
You should avoid using an entire column to do what you're trying to do and I would highly recommend you add these keywords to the top of your module:
Option Explicit
This will check your code a little more thoroughly and help you avoid unwanted errors.
To fix this, you can get the exact range you need and I recommend you declare every variable so it stays a specific type.
Something like this:
Option Explicit
Sub CreateWorkSheets()
Dim r As Range
Dim sh As Worksheet
Dim tempSh As Worksheet
Dim cell As Range
Dim strTemp As String
Set sh = Sheets("Sheet1")
Set r = sh.Range(sh.Cells(1, 1), sh.Cells(sh.Rows.Count, 1).End(xlUp))
For Each cell In r
Set tempSh = Sheets.Add(After:=Sheets(Sheets.Count))
strTemp = cell.Value
tempSh.Name = strTemp '// no more error
Next cell
End Sub