AD FS Windows Service Failed to Start Because of a Bad Configuration Format

Microsoft.ActiveDirectoryFederationServices.2016.FederationServerBadConfigurationFormatErrorMonitor (UnitMonitor)

Knowledge Base article:

Summary

The AD FS Windows service failed to start because the AD FS configuration file (Microsoft.IdentityServer.ServiceHost.exe.config) has invalid data.

If the AD FS Windows service is started successfully, the monitor will change to a Green state and the original critical alert will be resolved automatically.

Causes

The Federation Service configuration data contains invalid data.

Resolutions

Fix the configuration error as reported in the event, and then try to start the Federation Service again.

Element properties:

TargetMicrosoft.ActiveDirectoryFederationServices.2016.FederationServer
Parent MonitorSystem.Health.AvailabilityState
CategoryAvailabilityHealth
EnabledTrue
Alert GenerateTrue
Alert SeverityError
Alert PriorityNormal
Alert Auto ResolveTrue
Monitor TypeMicrosoft.Windows.2SingleEventLog2StateMonitorType
RemotableTrue
AccessibilityPublic
Alert Message
AD FS Windows Service Failed to Start Because of a Bad Configuration Format
The element '{0}' in the AD FS configuration file has invalid data. The configured value '{1}' could not be parsed as type '{2}'. The AD FS Windows Service failed to start.
RunAsDefault

Source Code:

<UnitMonitor ID="Microsoft.ActiveDirectoryFederationServices.2016.FederationServerBadConfigurationFormatErrorMonitor" Accessibility="Public" Enabled="true" Target="Microsoft.ActiveDirectoryFederationServices.2016.FederationServer" ParentMonitorID="Health!System.Health.AvailabilityState" Remotable="true" Priority="Normal" TypeID="Windows!Microsoft.Windows.2SingleEventLog2StateMonitorType" ConfirmDelivery="true">
<Category>AvailabilityHealth</Category>
<AlertSettings AlertMessage="Microsoft.ActiveDirectoryFederationServices.2016.FederationServerBadConfigurationFormatErrorMonitor_AlertMessageResourceID">
<AlertOnState>Error</AlertOnState>
<AutoResolve>true</AutoResolve>
<AlertPriority>Normal</AlertPriority>
<AlertSeverity>Error</AlertSeverity>
<AlertParameters>
<AlertParameter1>$Data/Context/Params/Param[1]$</AlertParameter1>
<AlertParameter2>$Data/Context/Params/Param[2]$</AlertParameter2>
<AlertParameter3>$Data/Context/Params/Param[3]$</AlertParameter3>
</AlertParameters>
</AlertSettings>
<OperationalStates>
<OperationalState ID="FirstEventRaised" MonitorTypeStateID="FirstEventRaised" HealthState="Error"/>
<OperationalState ID="SecondEventRaised" MonitorTypeStateID="SecondEventRaised" HealthState="Success"/>
</OperationalStates>
<Configuration>
<FirstComputerName>$Target/Host/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/NetworkName$</FirstComputerName>
<FirstLogName>$Target/Property[Type="Microsoft.ActiveDirectoryFederationServices.2016.FederationServer"]/ADFSEventLog$</FirstLogName>
<FirstExpression>
<And>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value Type="UnsignedInteger">131</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
<Expression>
<RegExExpression>
<ValueExpression>
<XPathQuery Type="String">PublisherName</XPathQuery>
</ValueExpression>
<Operator>MatchesMOM2005RegularExpression</Operator>
<Pattern>(^AD FS$)</Pattern>
</RegExExpression>
</Expression>
</And>
</FirstExpression>
<SecondComputerName>$Target/Host/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/NetworkName$</SecondComputerName>
<SecondLogName>$Target/Property[Type="Microsoft.ActiveDirectoryFederationServices.2016.FederationServer"]/ADFSEventLog$</SecondLogName>
<SecondExpression>
<And>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value Type="UnsignedInteger">100</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
<Expression>
<RegExExpression>
<ValueExpression>
<XPathQuery Type="String">PublisherName</XPathQuery>
</ValueExpression>
<Operator>MatchesMOM2005RegularExpression</Operator>
<Pattern>(^AD FS$)</Pattern>
</RegExExpression>
</Expression>
</And>
</SecondExpression>
</Configuration>
</UnitMonitor>