我想用VBA实现多个工作薄中的数据复制到一个工作薄中，写了一段代码，但是运行时报错：应用程序定义或对象定义错误 1004，该怎么改。

[tzy3169]

刚刚学习VBA，遇到一个问题。现在有多个工作薄，其中有些工作薄中有多个工作表，我新建了一个叫做“合并.xlsm”的工作薄想用VBA把其他工作薄中的数据复制到这个工作薄中。
代码如下：
Sub 合并()
Dim MyPath, MyName, AWbName
Dim Wb As Workbook, WbN As String
Dim G As Long
Dim Num As Long
Dim n As Integer
Dim m As Integer
Dim c As String
Dim BOX As String
Application.ScreenUpdating = False
MyPath = ActiveWorkbook.Path
MyName = Dir(MyPath & "\" & "*.xls")
AWbName = ActiveWorkbook.Name
Num = 0
Do While MyName <> ""
If MyName <> AWbName Then
Set Wb = Workbooks.Open(MyPath & "\" & MyName)
Num = Num + 1
m = Workbooks("合并.xlsm").Worksheets(1).Cells(Rows.Count, 1).End(xlUp).Row + 1
With Workbooks(1).ActiveSheet
.Cells(m + 3, 1) = Left(MyName, Len(MyName) - 4)

G = 1
n = Workbooks(MyName).Sheets.Count + 1
While G < n

m = Workbooks("合并.xlsm").Worksheets(1).Cells(Rows.Count, 1).End(xlUp).Row + 1
Wb.Sheets(G).UsedRange.Copy .Cells(m + 1, 1)

G = G + 1
Wend
WbN = WbN & Chr(13) & Wb.Name
Wb.Close False
End With
End If
MyName = Dir
Loop
Range("B1").Select
Application.ScreenUpdating = True
MsgBox "共合并了" & Num & "个工作薄下的全部工作表。如下：" & Chr(13) & WbN, vbInformation, "提示"
End Sub
运行时会报错：应用程序定义或对象定义错误 1004。
报错语句为：Wb.Sheets(G).UsedRange.Copy .Cells(m + 1, 1)
求各位大神帮帮忙

[X-i-n]

debug wb、wb.sheets.count、G、wb.sheets.(g).usedrange.rows.count 、m

[tzy3169]

做了修改 将第二个m改为： m = Workbooks("合并.xlsm").Worksheets(1).Cells.Find("*", , , , 1, 2).Row + 1 将： G = 1 n = Workbooks(MyName).Sheets.Count + 1 While G < n m = Workbooks("合并.xlsm").Worksheets(1).Cells(Rows.Count, 1).End(xlUp).Row + 1 Wb.Sheets(G).UsedRange.Copy .Cells(m + 1, 1) G = G + 1 改为： For G = 1 To Workbooks(MyName).Sheets.Count m = Workbooks("合并.xlsm").Worksheets(1).Cells.Find("*", , , , 1, 2).Row + 1 Wb.Sheets(G).UsedRange.Copy .Cells(m + 1, 1) Next 可是不知道为什么同一个execl表有时候能够正常运行，偶尔就会报错