Variable was not declared in this scope

Question

When I compile this code I get a error: 'currentState' was not declared in this scope.

The code:

enum state: int
 {
 NOTREADY,
 WAITSTARTUP,
 WAITSECRET,
 REVEALSECRET
 }
state currentState; <---- Error
const int BUTTONPIN = 4;
const int ROTARYPIN = A0;
void setup() 
{
 //Open Serial Monitor for debugging purposes
 Serial.begin(9600);
 //Configure the pins
 pinMode(BUTTONPIN, INPUT);
 pinMode(ROTARYPIN, INPUT);
 //Initialise the LCD
 lcd.begin(16, 2);
 //Assume that the current state is wait for start up signal
 currentState=WAITSTARTUP;
}

Answer 1

You have missing semicolon after the enum:

enum state: int
 {
 NOTREADY,
 WAITSTARTUP,
 WAITSECRET,
 REVEALSECRET
 }; // <-- here 

Answer 2

//go the Tools> Boards and check that you have selected the right option of your hardware? your remaining code is almost ok. But remember to add semicolon ";" sign at end every coding line.

 enum state: int{NOTREADY,WAITSTARTUP,WAITSECRET,REVEALSECRET}; 
 state currentState; //<---- Error
 const int BUTTONPIN = 4;
 const int ROTARYPIN = A0;
 void setup() 
 {
 //Open Serial Monitor for debugging purposes
 Serial.begin(9600);
 //Configure the pins
 pinMode(BUTTONPIN, INPUT);
 pinMode(ROTARYPIN, INPUT);
 //Initialise the LCD
 lcd.begin(16, 2);
 //Assume that the current state is wait for start up signal
 currentState=WAITSTARTUP;
 }

• gre_gor: I don't see what has board selection to do with this problem. And the solution to the actual problem was already posted.