Always running into Run-Time Error '1004'

[SmartCookie]

Hello everyone, I have been running into a VBA runtime 1004 'Application-Defined or object defined error'

Below are the code that have the issue. The weird thing is that when I open the workbook they will never run the first time, but after I run it couple times, they will magically happened to work. (I dont know what I have changed in between but they just work), that also proved the code is not written incorrectly. Another thing I observed is that they are all copy&paste vba, mainly copying one range of the data from one workbook to another workbook. I suspected there might be something to do with the variable assignment but can't be sure. Please help! Thank you.

1)

Sub CopyRawData_RSWW()
''
Set wb1 = ThisWorkbook
Set ws1 = wb1.Worksheets("Base Data_RS")
Set wb2 = Workbooks.Open("C:\Users\DengSilin\Desktop\Material & Information\Bklg_Inv_Match_FL(SJC)_021721.xlsm")
Set ws2 = wb2.Worksheets("WIP-RSWW")
EndofRow = ws2.Cells(ws2.Rows.Count, 1).End(xlUp).Row


ws2.Range("A10", Cells(EndofRow, 5)).Copy
ws1.Range("A4").PasteSpecial
Application.CutCopyMode = False

End Sub

2)

Sub CopyRawData_CRSWW()

Set wb1 = ThisWorkbook
Set wb2 = Workbooks.Open("C:\Users\DengSilin\Desktop\Material & Information\Bklg_Inv_Match_FL(SJC)_021721.xlsm")
Set ws3 = wb1.Worksheets("Base Data_CRS")
Set ws4 = wb2.Worksheets("WIP-CRSWW")
EndofRow = ws4.Cells(ws4.Rows.Count, 1).End(xlUp).Row
ws4.Range("A10", Cells(EndofRow, 5)).Copy
ws3.Range("A4").PasteSpecial
Application.CutCopyMode = False

End Sub

3)

Sub CopytoFinalSheet()
Set wb1 = ThisWorkbook
Set ws1 = wb1.Worksheets("Template")
Set ws2 = wb1.Worksheets("IFX WW19")
EndofRow = ws1.Cells(ws1.Rows.Count, 2).End(xlUp).Row

ws1.Range("B2", Cells(EndofRow, 6)).Copy
ws2.Range("B14").PasteSpecial

Application.CutCopyMode = False

End Sub

 

[Fluff]

Hi & welcome to MrExcel.
You have the same problem in each sub, namely unqualified ranges. This

ws2.Range("A10", Cells(EndofRow, 5)).Copy

should be

ws2.Range("A10", ws2.Cells(EndofRow, 5)).Copy

 

[SmartCookie]

Hi & welcome to MrExcel.
You have the same problem in each sub, namely unqualified ranges. This

ws2.Range("A10", Cells(EndofRow, 5)).Copy

should be

ws2.Range("A10", ws2.Cells(EndofRow, 5)).Copy

Thank you!! You are right. changed it and it worked perfectly!

 

[Fluff]

You're welcome & thanks for the feedback.