Upgrading from v2.6.0 to v2.6.1 (or above) fails: no NPOI.dll is in bin folder

[Louharm]

Hi,

We are using NPOI v2.6.0.
When we upgrade to v2.6.1 (or 2.6.2 or 2.7.0), we cannot run our project because it fails to find the dll for NPOI v2.6.0 :

System.IO.FileNotFoundException: Could not load file or assembly 'NPOI, Version=2.6.0.0, Culture=neutral, PublicKeyToken=0df73ec7942b34e1'. The system cannot find the file specified. File name: 'NPOI, Version=2.6.0.0, Culture=neutral, PublicKeyToken=0df73ec7942b34e1'

I notice in the bin folder that, using v2.6.0, we have an NPOI.dll that is correctly versionned.
When I build using v2.7.0 the NPOI.dll is replaced by NPOI.Core.dll (v2.7.0).

Am I doing something wrong? Or how can I solve this?

Thanks for the help,
Kind regards,