Page 180 Binding TraceSwitch about cs11dotnet7

[markjprice]

The exception message is "Must specify valid information for parsing in the string" and this is generated by Enum.TryParse so that sounds like you have entered an invalid value for the Level e.g. it can only be Info, Error, Warning, and so on or an integer value like 0, 1, 2, and so on.

Please show the contents of your file named appsettings.json. It should be:

{
  "PacktSwitch": {
    "Level": "Info"
  }
}

[bettesn]

Hi there, Thanks for responding. This is what I have in that file. I ended up copying all the solution files from the book download to eliminate typos. Nick Nick Bettes Director Nick Bettes Consulting M: [phone] T: [phone] Beech Hill House, Wood Lane, Beech Hill, Berkshire RG7 2BE From: Mark J. Price ***@***.***> Sent: 18 February 2023 12:52 To: markjprice/cs11dotnet7 ***@***.***> Cc: bettesn ***@***.***>; Author ***@***.***> Subject: Re: [markjprice/cs11dotnet7] Page 180 Binding TraceSwitch (Issue #29) Please show the contents of your file named appsettings.json. It should be: { "PacktSwitch": { "Level": "Info" } } — Reply to this email directly, view it on GitHub <#29 (comment)> , or unsubscribe <https://github.com/notifications/unsubscribe-auth/AKIMAITKY2YDQO5TSLXGRPDWYDAYBANCNFSM6AAAAAAU6CMCMY> . You are receiving this because you authored the thread. <https://github.com/notifications/beacon/AKIMAISOFDUEH7LRIYDXJP3WYDAYBA5CNFSM6AAAAAAU6CMCM2WGG33NNVSW45C7OR4XAZNMJFZXG5LFINXW23LFNZ2KUY3PNVWWK3TUL5UWJTSVSJ57C.gif> Message ID: ***@***.*** ***@***.***> >

[markjprice]

Sorry, but I cannot help unless I have more information. The exception you got says it cannot parse the string value for the enum. That could be because you are looking at one file but it is reading a different one. Or the value is wrong. Please show as much information as possible, for example, the code will output the full path and filename of the appsettings.json file that it is reading from. Please show all output and the contents of that file.

[bettesn]

It’s ok I don’t expect you to provide tech support for the price of a book! It must be something in my setup that is affecting it. I’m getting on with the rest of the book with no other problems. I’ll deal with this config issue if and when I need it for real. Nick Nick Bettes Director Nick Bettes Consulting M: [phone] T: [phone] Beech Hill House, Wood Lane, Beech Hill, Berkshire RG7 2BE From: Mark J. Price ***@***.***> Sent: 20 February 2023 12:16 To: markjprice/cs11dotnet7 ***@***.***> Cc: bettesn ***@***.***>; Author ***@***.***> Subject: Re: [markjprice/cs11dotnet7] Page 180 Binding TraceSwitch (Issue #29) Sorry, but I cannot help unless I have more information. The exception you got says it cannot parse the string value for the enum. That could be because you are looking at one file but it is reading a different one. Or the value is wrong. Please show as much information as possible, for example, the code will output the full path and filename of the appsettings.json file that it is reading from. Please show all output and the contents of that file. — Reply to this email directly, view it on GitHub <#29 (comment)> , or unsubscribe <https://github.com/notifications/unsubscribe-auth/AKIMAIVWMVMWDHDE77Y26VTWYNOA7ANCNFSM6AAAAAAU6CMCMY> . You are receiving this because you authored the thread. <https://github.com/notifications/beacon/AKIMAIQ5JHJMCWIGDE5N7WLWYNOA7A5CNFSM6AAAAAAU6CMCM2WGG33NNVSW45C7OR4XAZNMJFZXG5LFINXW23LFNZ2KUY3PNVWWK3TUL5UWJTSVUVUMC.gif> Message ID: ***@***.*** ***@***.***> >

[Matrix-Zhang]

@markjprice same issue, the json key is 'PacktSwitch:Level'?

[huynhloc-1110]

It seems like the new version (7.0.3) of Microsoft.Extensions.Configuration.Binder has some changes that break the old code in the book. I also had the same issue as you and tried changing the version of the Binder in Instrumenting.csproj from 7.0.3 back to 7.0.0 to match the version in the book and it worked fine after that.
I also tried changing back to 7.0.3 again and the exception showed again.

Here is my package reference when the error happened:

  <ItemGroup>
    <PackageReference Include="Microsoft.Extensions.Configuration" Version="7.0.0" />
    <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="7.0.3" />
    <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="7.0.0" />
    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="7.0.0" />
  </ItemGroup>

And after fixing:

  <ItemGroup>
    <PackageReference Include="Microsoft.Extensions.Configuration" Version="7.0.0" />
    <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="7.0.0" />
    <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="7.0.0" />
    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="7.0.0" />
  </ItemGroup>

[markjprice]

Thank you, Huynh Loc Le, you are correct. I have tested all versions of the package from 7.0.0 to 7.0.3 and the latest that works is 7.0.2. I have created an errata item for this:
https://github.com/markjprice/cs11dotnet7/blob/main/docs/errata/errata.md#page-178---reviewing-project-packages

[bettesn]

Thanks for resolving this and updating me. Nick Bettes Director Nick Bettes Consulting M: [phone] T: [phone] Beech Hill House, Wood Lane, Beech Hill, Berkshire RG7 2BE From: Huynh Loc Le ***@***.***> Sent: 07 March 2023 15:10 To: markjprice/cs11dotnet7 ***@***.***> Cc: bettesn ***@***.***>; Author ***@***.***> Subject: Re: [markjprice/cs11dotnet7] Page 180 Binding TraceSwitch (Issue #29) It seems like the new version (7.0.3) of Microsoft.Extensions.Configuration.Binder has some changes that break the old code in the book. I also had the same issue as you and tried changing the version of the Binder in Instrumenting.csproj from 7.0.3 back to 7.0.0 to match the version in the book and it worked fine after that. I also tried changing back to 7.0.3 again and the exception showed again. Here is my package reference when the error happened: And after fixing: — Reply to this email directly, view it on GitHub <#29 (comment)> , or unsubscribe <https://github.com/notifications/unsubscribe-auth/AKIMAIUDDMMVJKUT5Z7HWKLW25FSZANCNFSM6AAAAAAU6CMCMY> . You are receiving this because you authored the thread. <https://github.com/notifications/beacon/AKIMAIX3EKPY2Z3QG674KXLW25FSZA5CNFSM6AAAAAAU6CMCM2WGG33NNVSW45C7OR4XAZNMJFZXG5LFINXW23LFNZ2KUY3PNVWWK3TUL5UWJTSW5R4CG.gif> Message ID: ***@***.*** ***@***.***> >