How can I make inside work together

Question

This is the app.config in my WPF application:

    <?xml version="1.0" encoding="utf-8"?>
    <configuration>
      <configSections>
        <sectionGroup name="userSettings" type="System.Configuration.UserSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
          <section name="XXX.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false"/>
        </sectionGroup>
        <sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
          <section name="XXX.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false"/>
        </sectionGroup>
      </configSections>

      <userSettings>...</userSettings>
      <applicationSettings>...</applicationSettings>

      <startup>
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.2"/>
      </startup>

      <runtime>
        <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
          <dependentAssembly>
            <assemblyIdentity name="System.ValueTuple" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
            <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.3.0" />
          </dependentAssembly>
        </assemblyBinding>
      </runtime>
    </configuration>

Run application get exception:

ConfigurationErrorsException: Only one element allowed per config file and if present must be the first child of the root element

If I remove <runtime> section application works well but will cause a bulid time warning:

Solution: https://stackoverflow.com/a/46533630/3907561

So my question is How can I make "configSections" "runtime" inside "configuration" work together ?

That's confusing. What that error means is "there must be only one configSections section and it must be the first child of the configuration element" but that seems to be the case in your config. Is there another `configSections` declaration in the `` or ``? — stuartd, Mar 05 '19 at 15:02
Hmm, I wonder if it is because you have declared multiple sectionGroups? — stuartd, Mar 05 '19 at 15:06
If I remove section, all works well except the build time warning. @stuartd — huang, Mar 05 '19 at 15:15

score 1 · Answer 1 · edited Mar 05 '19 at 15:32

1

I don't see any problem with using <runtime> and <configSections> together( I did 2 projects with it, and both are OK).

I don't know what are you configuring with bellow sections, maybe your problem is inside them:

      <userSettings>...</userSettings>
      <applicationSettings>...</applicationSettings>

edited Mar 05 '19 at 15:32

Damien_The_Unbeliever

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answered Mar 05 '19 at 15:29

Nhan Phan

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Damn, after I clean and rebuild, all works well. Anyway, thanks your tips. – huang Mar 05 '19 at 15:32

score 0 · Accepted Answer · answered Mar 05 '19 at 15:33

0

Try clean and rebuild the Solution.

answered Mar 05 '19 at 15:33

huang

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How can I make inside work together

2 Answers2