NPOI exeption when opening stream

[JorgeCorvallis]

I'm using below code to read and write to the xlsx sheet using NPOI

• Below code "works" but it's trowing handled [System.MissingMethodException] exceptions
  I'm using NPOI 2.5.6.0

Using opening a file stream for reading / writing has been the only way I can write the sheet information back to the xlsx file ???
I don't think the method is missing for opening a stream ...Its kind of working - as it is actually reading the stream regardless of the exemption I do eventually end up with a messed up XLXS file ..

How can I make this work - without getting the exception?

Dim Worksheet_FileStream As FileStream = New FileStream(WorkSheet_path, FileMode.Open, FileAccess.Read)
XLSX_WORKBOOK = New NPOI.XSSF.UserModel.XSSFWorkbook(Worksheet_FileStream)
Worksheet_FileStream.Close()
actually below is what my output window is telling me
A first chance exception of type 'System.MissingMethodException' occurred in NPOI.OOXML.dll
A first chance exception of type 'System.MissingMethodException' occurred in NPOI.OOXML.dll
A first chance exception of type 'System.MissingMethodException' occurred in NPOI.OOXML.dll
A first chance exception of type 'System.MissingMethodException' occurred in NPOI.OOXML.dll

[tonyqus]

Which environment? Linux on docker or Windows 10?

[JorgeCorvallis]

Win10 Studio 2013 Framework 4.5 Georg Sent from my iPhone On Dec 3, 2023, at 12:59 PM, Tony Qu ***@***.***> wrote:  Which environment? Linux on docker or Windows 10? — Reply to this email directly, view it on GitHub<#1230 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AHYGIPDLK2BPRWHKD26BYIDYHTR4VAVCNFSM6AAAAABAEOIBK2VHI2DSMVQWIX3LMV43SRDJONRXK43TNFXW4Q3PNVWWK3TUHM3TONBWGM2TO>. You are receiving this because you authored the thread.Message ID: ***@***.***>