Support .NET Standard

[Methuselah96]

I currently get an error when trying to install .NET Core NPOI to a .NET Framework project (which has been noted before #42). "Unable to resolve dependencies. 'SharpZipLib 0.86.0' is not compatible with 'DotNetCore.NPOI 1.0.2 constraint: SharpZipLib (>= 1.0.0-alpha2)'."

v1.1.4 removed support for .NET Standard because it was "cumbersome and pointless because in .NET Framework 4.6 , you can use NPOI." It is not pointless. I have a .NET Standard project that depends on NPOI that is depended on by both .NET Core and .NET Framework projects and so I need NPOI to support .NET Standard so that my .NET Standard library can be consumed by both types of project. I cannot just use NPOI for .NET Framework because it needs to support both. Please bring back support for .NET Standard.

[yang-xiaodong]

I agree with you , We will re-support the .net framework 4.6.1 at next version.
thanks.

[Methuselah96]

@yuleyule66 You have attached the fixed label. When is the next release planned? I would like to start using this ASAP.

[yang-xiaodong]

@Methuselah96 , 1.2.0 released

[Methuselah96]

@yuleyule66 I'm still getting Unable to resolve dependencies. 'SharpZipLib 0.86.0' is not compatible with 'DotNetCore.NPOI.Core 1.2.0 constraint: SharpZipLib (>= 1.0.0-rc1)'. when I try to install it in a .NET Framework project.

[yang-xiaodong]

Try to install SharpZipLib 1.0.0-rc1 from nuget first , then install DotNetCore.NPOI