What else might be necessary? My app runs on my local machine but not on any of several servers, though I have full admin rights there. The error message turns up little in search results, beyond this very forum and a few nearly-identical versions:
<?xml version="1.0"?>
<configuration>
<configSections>
<sectionGroup name="userSettings" type="System.Configuration.UserSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
<section name="AdWords.Extractor.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false" />
</sectionGroup>
</configSections>
<connectionStrings>...</connectionStrings>
<userSettings>...</userSettings>
<system.web>
<webServices>
<soapExtensionTypes>
<add type="Google.Api.Ads.Common.Lib.SoapListenerExtension, Google.Ads.Common, Version=1.4.0.0, Culture=neutral, PublicKeyToken=52807268f2b614dc" priority="1" group="0"/>
</soapExtensionTypes>
</webServices>
</system.web>
<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup>
</configuration>