error in initialization workbook

[lucagiovanni]

hi,
I have a VB program with reference to Spire.XLS and when I create new workbook, everything works fine, but if I add a reference to Spire.PDF programs return an error when I initilaize a new workbook ...

Workbook Dim as Workbook = new Workbook ()

the error is attached

why? where am I wrong?

I have a license for both products

with best regards

Rossato Luca Giovanni

[burning.liu]

Dear lucagiovanni,

Thanks for your inquiry.

Please note that when using two or more Spire's productions together (you use Spire.Xls and Spire.Pdf), you must reference the dlls from Spire.Office, not from Spire.Xls or Spire.Pdf.