src/Libraries/Microsoft.Extensions.Telemetry/Logging/Import/LoggerFactoryScopeProvider.cs(255,55): error CS8643: (NETCORE_ENGINEERING_TELEMETRY=Build) Nullability of reference types in explicit interface specifier doesn't match interface implemented by the type.

src/Libraries/Microsoft.Extensions.Telemetry/Logging/Import/LoggerFactoryScopeProvider.cs(257,31): error CS1061: (NETCORE_ENGINEERING_TELEMETRY=Build) 'IEnumerable<KeyValuePair<string, string?>>' does not contain a definition for 'Select' and no accessible extension method 'Select' accepting a first argument of type 'IEnumerable<KeyValuePair<string, string?>>' could be found (are you missing a using directive or an assembly reference?)

src/Libraries/Microsoft.Extensions.Telemetry/Logging/Import/LoggerFactoryScopeProvider.cs(255,55): error CS8643: (NETCORE_ENGINEERING_TELEMETRY=Build) Nullability of reference types in explicit interface specifier doesn't match interface implemented by the type.

src/Libraries/Microsoft.Extensions.Telemetry/Logging/Import/LoggerFactoryScopeProvider.cs(257,31): error CS1061: (NETCORE_ENGINEERING_TELEMETRY=Build) 'IEnumerable<KeyValuePair<string, string?>>' does not contain a definition for 'Select' and no accessible extension method 'Select' accepting a first argument of type 'IEnumerable<KeyValuePair<string, string?>>' could be found (are you missing a using directive or an assembly reference?)

src/Libraries/Microsoft.Extensions.Telemetry/Logging/Import/LoggerFactoryScopeProvider.cs(255,55): error CS8643: (NETCORE_ENGINEERING_TELEMETRY=Build) Nullability of reference types in explicit interface specifier doesn't match interface implemented by the type.