Fixed - see Sara Lui's link to document in comments.
I have created several NuGet packages which are available on our private Corporate NuGet gallery.
Several of these packages are dependent upon one common package.
However, when I add this to my Nuspec file:
<?xml version="1.0"?>
<package >
<metadata>
...
<dependencies>
<dependency id="MyCommonPackage" version="1.0">
</dependency>
</dependencies>
</metadata>
</package>
Then it fails to install because it can't find "MyCommonPackage" - it's not looking for it in our corporate gallery:
NotFound https://api.nuget.org/v3-flatcontainer/MyCommonPackage/index.json
Visual Studio has this gallery referenced, but I suspect I need to reference it in the nuspec file (just not seeing how to do this).
I fixed it by referring to link provided by @Sara Lui:
please check this doc: https://learn.microsoft.com/en-us/nuget/create-packages/creating-a-package and make sure the required file 'MyCommonPackage' is under the folder structure before we run the nuget pack command to generate the .nupkg file.
I removed the package references, deleted the folders from the NuGet gallery and then re-published them from the bottom-up. This time it just worked like a dream (with no changes apart from re-publishing).