how do I deal with error 1004 in vba excel?

Basically I have 3 worksheets . From the first worksheet I get a value (rotid) , and by using the match function I try to find the value in the second worksheet , and copy the row associated with the value into worksheet 3 where y is the index of the row in sheet 2 which corresponds to the value (rotid). But sometimes a value is not found in worksheet 2 and the program crashes . How can I deal with this error ?

worksheet 1 is list,

worksheet 2 is rotmain2,

worksheet 3 is imdb

btw this is how my code looks like . Im not sure how to use codetags.

Sub combine_imdb_rot_data()

' y is the index of the row in rotmain2 which corresponds to rotid

Dim y As Variant

Sheets("imdbmain").Select

For i = 1 To 4415

  ' select sheet list and assign rotid for value of the cell in row i+1  and column 7
  rotid = Sheets("list").Cells(i + 1, 7).Value

  ' if rotid is not empty,
  If Len(rotid) > 0 Then

    'look for a row that corresponds to the rotid in worksheet "rotmain2"
    Sheets("rotmain2").Select
    'x = Sheets("list").Cells(i + 1, 7).Row
    y = WorksheetFunction.Match(rotid, Range("B1:B4218"), 0)

    If IsNumeric(y) Then                             
        ' copy the information in the row             
        Range(Cells(y, 1), Cells(y, 13)).Select
        Selection.Copy                   
        ' paste it into row i+1 in worksheet "imdbmain"
         Sheets("imdbmain").Select
         'select row i+1 in imdbmain
        Range(Cells(i + 1, 9), Cells(i + 1, 21)).Select
        Workbooks(1).Sheets(1).Paste
        Application.CutCopyMode = False
    Else
        ' copy the information in the row                  
        Range(A4220, M4220).Select
        Selection.Copy

        ' paste it into row i+1 in worksheet "imdbmain"
  开发者_开发技巧       Sheets("imdbmain").Select
         'select row i+1 in imdbmain
        Range(Cells(i + 1, 9), Cells(i + 1, 21)).Select
        Workbooks(1).Sheets(1).Paste
        Application.CutCopyMode = False
    End If   
End If
Next
End Sub

I also tried with another method suggested by Remou. Is this how the .find method works ? Im not sure but when I use it I get a Runtime error 13 type mismatch:

Sub combine_imdb_rot_data()

    ' y is the index of the row in rotmain2 which corresponds to rotid

    Dim y As Variant

  Sheets("imdbmain").Select

  For i = 1 To 4415

    ' select sheet list and assign rotid for value of the cell in row i+1  and column 7
    rotid = Sheets("list").Cells(i + 1, 7).Value

    ' if rotid is not empty,
    If Len(rotid) > 0 Then

        'look for a row that corresponds to the rotid in worksheet "rotmain2"
        Sheets("rotmain2").Select
        'x = Sheets("list").Cells(i + 1, 7).Row
        Set y = Range("B1:B4218").Find(rotid)


        If y Is Nothing Then

            ' copy the information in the row
            'Range("1:4," & x & ":" & x).Copy
            'Range("A&x"&:&"M&x").Copy
            'Copy empty row

            Range("A101:M101").Select
            Selection.Copy


            ' paste it into row i+1 in worksheet "imdbmain"
             Sheets("imdbmain").Select
             'select row i+1 in imdbmain
            Range(Cells(i + 1, 9), Cells(i + 1, 21)).Select
            Workbooks(1).Sheets(1).Paste


        Else

            ' copy the information in the row
            'Range("1:4," & x & ":" & x).Copy
            'Range("A&x"&:&"M&x").Copy

            Range(Cells(y, 1), Cells(y, 13)).Select
            Selection.Copy


            ' paste it into row i+1 in worksheet "imdbmain"
             Sheets("imdbmain").Select
             'select row i+1 in imdbmain
            Range(Cells(i + 1, 9), Cells(i + 1, 21)).Select
            Workbooks(1).Sheets(1).Paste
            Application.CutCopyMode = False




        End If

  End If
  Next


End Sub

You could trap the error, or perhaps use Find:

rotid=5 ''Let us say

With Worksheets(1).Range("B1:B4218")
    ''Find returns a range object, so we use Set
    Set y = .Find(rotid, LookIn:=xlValues, lookAt:=xlWhole)
    If y Is Nothing Then
        Debug.Print "Not found"
    Else
        ''This will print a cell, $b$15, for example
        Debug.Print y.Address
        ''This will print 5
        Debug.Print y.Value
    End If
End With

Futher information: http://msdn.microsoft.com/en-us/library/aa195730%28office.11%29.aspx

The first thing you may want to do is put On Error Resume Next at the top of your module. Give that a try first.