Contentfile in nuget gets compiled causing build errors - json

Question

I have a nuget that has a contentfile in it. It is a json file and denoted in the nuspec file when the nuget is packed.
When installing the nuget in a regular wpf app, I get a couple build errors. It appears that Visual Studio is trying to compile the .json file. Wondering if anyone knows what may cause this. As you'll see in the nuspec snippet I have BuildAction=None in the nuspec
ContentFile.json(1,1,1,2): error CS1022: Type or namespace definition, or end-of-file expected
ContentFile.json(4,16,4,26): error CS1001: Identifier expected
ContentFile.json(4,37,4,45): error CS1001: Identifier expected

Answer 1

When installing the nuget in a regular wpf app, I get a couple build
errors. It appears that Visual Studio is trying to compile the .json
file. Wondering if anyone knows what may cause this. As you'll see in
the nuspec snippet I have BuildAction=None in the nuspec
I think the main point is that you mistakenly assume that <files include="path"> is the path of the source file ContentFile.json in your current nuget project, which is actually the path relative to the contentFiles folder inside the nuget package(xxxx.nupkg).(You can view the contentFiles folder by decompressing the xxx.nupkg file).
Besides, you can check this official document for more detailed info.
As a right guidance, you can try this step:
Solution
change to these in xxx.nuspec file
....
<metadata>
....
<contentFiles>
<files include="any/any/ContentFile.json"(the relativepath of the file under the ContentFiles folder in the xxx.nupkg) buildAction="None" copyToOutput="true" flatten="false" />
</contentFiles>
</metadata>
<files>
<file src="xxxxx/Resource/ContentFile.json(the relativePath of the file under the nuget project)" target="contentFiles/any/any" />
</files>
....
Before you install this package into another project , do not forget to clean the nuget cache.
In additon, you can check this thread for more info.
Hope it could help you.