What should a task do when an error of given type is encountered? Only some combinations of values are allowed: ignore (+ stopAfter), retryLater (+ stopAfter), stop. TEMPORARY. EXPERIMENTAL.

Item Summary
Name	Type	Multiplicity	Description
ignore	container IgnoreErrorReactionType	[0,1]	Error should be ignored.
stop	container StopProcessingReactionType	[0,1]	The processing should be stopped.
retryLater	container RetryLaterReactionType	[0,1]	Processing of the specified account should be retried later.
stopAfter	property int	[0,1]	Task is stopped after seeing this number of errors.

Items
- ignore
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  Error should be ignored. E.g. for live sync tasks, the token is advanced to the next item.
- stop
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  The processing should be stopped. This is the default strategy for live sync and async update tasks.
- retryLater
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  Processing of the specified account should be retried later.
- stopAfter
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  Task is stopped after seeing this number of errors. TEMPORARY. Most probably will be replaced by the thresholds mechanism.