'WorkShare' does not contain a definition for 'thread' and no accessible extension method 'thread' accepting a first argument of type 'WorkShare' could be found (are you missing a using directive or an assembly reference?)

The name 'tid' does not exist in the current context

'Region' does not contain a definition for 'spin' and no accessible extension method 'spin' accepting a first argument of type 'Region' could be found (are you missing a using directive or an assembly reference?)

'WorkShare' does not contain a definition for 'thread' and no accessible extension method 'thread' accepting a first argument of type 'WorkShare' could be found (are you missing a using directive or an assembly reference?)

The name 'tid' does not exist in the current context

'Region' does not contain a definition for 'spin' and no accessible extension method 'spin' accepting a first argument of type 'Region' could be found (are you missing a using directive or an assembly reference?)

'WorkShare' does not contain a definition for 'thread' and no accessible extension method 'thread' accepting a first argument of type 'WorkShare' could be found (are you missing a using directive or an assembly reference?)

The name 'tid' does not exist in the current context

'Region' does not contain a definition for 'spin' and no accessible extension method 'spin' accepting a first argument of type 'Region' could be found (are you missing a using directive or an assembly reference?)