When I want to pack my library as a NuGet package, I get the below error
The DateTimeOffset specified cannot be converted into a Zip file timestamp
I'm using the below command to pack my project:
dotnet msbuild /t:pack /p:Configuration=Release /p:SourceLinkCreate=true
The problem is; some DLL files have invalid dates for a zip file (like 31/12/1979). You can overcome this issue by updating all the invalid DLL files modification date. Here's the Powershell script that updates all the invalid DLLs.
gci -path "C:\" -rec -file *.dll | Where-Object {$_.LastWriteTime -lt (Get-Date).AddYears(-20)} | % { try { $_.LastWriteTime = '01/01/2020 00:00:00' } catch {} }
It sets all the invalid DLL dates to 01/01/2000.
Change the path parameter for your computer.
My GitHub repositories are on my C drive so I'm running this -path C:\.
Seems that in most of cases (basing on research in github issues) the problem was related to Microsoft.Extensions.* packages. In my case update to newer version of Microsoft.Extensions.* (from 3.1.0 to 3.1.4) fixed the problem. For reference :
https://github.com/dotnet/extensions/issues/2750
and mentioned in comments :
I made a console app to fix invalid dates in a drive (cross-platform). It sets the LastModificationDate to 01/01/2000. You can just run it without any arguments. It will run in all your drives. Also you can specify a directory to search in.
Source-code on GitHub:
Usage:
FileBulkDateChanger.exe
or
FileBulkDateChanger.exe C:\
For MAC/Linux,
dotnet FileBulkDateChanger.dll
Run this tool and forget about this issue :)