Intermittent compiler complaints of 'Point' does not define a type

what perplexing same typedef structures working earlier before added more processes application.
point , command defined follows:

code: [select]

typedef struct point
{
  int x;
  int y;
}point;
typedef struct command 
{ //0 based offsets:
word verb; //zero , first  bytes of serial stream.
point begin; //third sixthth bytes (x) eighth eleventh bytes (y) of serial stream.
point finish; //thirteenth sixteenth bytes (x) eighteeenth twenty-first bytes (y) of serial stream.
point ac; //twenty-third twenty-sixth bytes (x) twenty-eighth thirty-first bytes (y) of serial stream.
unsigned int ba; //thirty-third thirty-sixth bytes of serial stream.
unsigned int ea; //thirty-eighth fourty-first bytes of serial stream.
unsigned int td; //fourty-third fourty-sixth bytes of serial stream.
              boolean bias; //fourty-eighth byte of serial stream.
              float scalor; //scaling factor motor movement.
              boolean major; //if true x has major displacement.
}command;

also add puzzlement 'command' being accepted datatype , if library included have have inclusion appear after typedefs or neither 1 sets.

what mean 'intermittent'? same sketch compiles ok , fails?
what mean 'added more processes application'?

all can guess far using library declares point else.

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