Diagnostics

General

ID	Level	Category	Description
TSG1000	Error	Usage	Fatal execution error occurred.
TSG1001	Error	Usage	Inferring generation targets is not supported when using multi-target generation.
TSG1002	Error	Usage	Multiple generation types are not supported.
TSG1003	Error	Usage	Duplicate method names are not supported.
TSG1004	Error	Usage	Generic interfaces are not supported.
TSG1005	Error	Usage	Generic methods are not supported.

Logging

ID	Level	Category	Description	Valid For
TSG2000	Error	Usage	Too many exception parameters.	Generation v1
TSG2001	Error	Usage	More than 6 parameters, which is unsupported bug the logging generation framework.	Generation v1
TSG2002	Info	Usage	Inferring Microsoft.Extensions.Logging.LogLevel.Error log level.	Generation v1, Generation v2
TSG2003	Warning	Usage	The Microsoft.Extensions.Logging.ILogger type wasn't found/ referenced, but a generation was attempted.	Generation v1, Generation v2
TSG2004	Error	Usage	Mixing ordinal and named placeholders in message templates is not supported.	Generation v1, Generation v2
TSG2005	Error	Usage	Ordinal placeholders referenced exceeds the number of provided parameters.	Generation v1, Generation v2
TSG2006	Error	Usage	Using LogPropertiesAttribute and ExpandEnumerableAttribute on the same parameter is not supported.	Generation v2
TSG2007	Warning	Usage	A scoped log shouldn't have a LogLevel, this will be ignored.	Generation v1, Generation v2
TSG2008	Warning	Performance	Unbounded enumeration possible. This may have performance implications.	Generation v2

Activities

ID	Level	Category	Description
TSG3000	Warning	Usage	Baggage parameter types only accept strings.
TSG3001	Warning	Usage	No activity source specified.
TSG3002	Error	Usage	Invalid return type.
TSG3003	Error	Usage	Duplicate reserved parameters defined.
TSG3004	Error	Usage	Activity parameter is not valid.
TSG3005	Error	Usage	Timestamp parameter is not valid.
TSG3006	Error	Usage	Start time parameter is not valid on Create activity or Event method.
TSG3007	Error	Usage	Parent context or Parent Id parameter is not valid on event.
TSG3008	Error	Usage	Activity links parameters are not valid on events or context methods.
TSG3009	Error	Usage	Activity tags parameter are not valid on context methods.
TSG3010	Error	Usage	Escaped parameters must be a boolean.
TSG3011	Error	Usage	Escaped parameters are only valid on Events, not Activity or Context methods.
TSG3012	Info	Usage	There is no Activity method defined, only Event and/ or Context. This means the Activity.Current is assumed which much be created manually.
TSG3013	Warning	Usage	The activity method does not return an Activity.
TGS3014	Warning	Usage	The Event and/ or Context method should have an Activity or Activity? parameter.
TGS3015	Info	Usage	For readability, include the Activity parameter as the first one.
TGS3016	Error	Usage	Status parameter should be a string.
TGS3017	Error	Usage	Status Description parameters are only valid on Events, not Activity or Context methods.

Metrics

ID	Level	Category	Description
TSG4000	Error	Usage	No instrument defined.
TSG4001	Error	Usage	Must return void or bool.
TSG4002	Error	Usage	Auto increment counter and measurement defined.
TSG4003	Error	Usage	Multiple measurement values defined.
TSG4004	Error	Usage	No measurement value defined.
TSG4005	Error	Usage	Observable instrument requires Func<T>.
TSG4006	Error	Usage	Invalid measurement type.