How to solve yacc error "... has no declared type" - parsing

Question

I have problem on Yacc/Bison.
We use Kotlin grammar.
This is my code :
%token BOOL
%token BREAK
%token CHAR
%token CONTINUE
%token DO
%token ENUM
%token EXTERN
%token FALSE
%token FLOAT
%token FOR
%token FN
%token IN
%token INT
%token LET
%token LOOP
%token MATCH
%token MUT
%token PRINT
%token PRINTLN
%token PUB
%token RETURN
%token SELF
%token STATIC
%token STR
%token STRUCT
%token TRUE
%token USE
%token WHERE
%token IF
%token ELSE
%token <Token> INTEGER
%token <Token> STRING
%token <Token> REAL
%token <Token> ID
%type <Token> arrDec type expression integerExpr realExpr boolExpr stringExpr functionInvoc
varDec: LET MUT ID ':' type ';' {
Trace("Reducing to varDec Form LET MUT ID ':' type ';'\n");
variableEntry ve = ve_basic_notInit($3.stringVal, $5.tokenType, false);
if (symTabs.isNowGlobal())
{
ve.isGlobal = true;
printTabs();
if (ve.type== T_INT)
fp << "field static int " << ve.name << endl;
else if (ve.type == T_BOOL)
fp << "field static int " << ve.name << endl;
}
else
{
ve.isGlobal = false;
ve.stackIndex = nowStackIndex;
nowStackIndex++;
}
if (!symTabs.addVariable(ve))
yyerror("Re declaration.");
}
| LET MUT ID '=' expression ';' {
Trace("Reducing to varDec Form LET MUT ID '=' expression ';'\n");
variableEntry ve = ve_basic($3.stringVal, $5.tokenType, false);
if ($5.tokenType == T_INT)
ve.data.intVal = $5.intVal;
else if ($5.tokenType == T_FLOAT)
ve.data.floatVal = $5.floatVal;
else if ($5.tokenType == T_BOOL)
ve.data.boolVal = $5.boolVal;
else if ($5.tokenType == T_STRING)
ve.data.stringVal = $5.stringVal;
if (symTabs.isNowGlobal())
{
ve.isGlobal = true;
printTabs();
if (ve.type == T_INT)
fp << "field static int " << ve.name << " = " << ve.data.intVal << endl;
else if (ve.type == T_BOOL)
fp << "field static int " << ve.name << " = " << ve.data.boolVal << endl;
}
else
{
ve.isGlobal = false;
ve.stackIndex = nowStackIndex;
nowStackIndex++;
printTabs();
if (ve.type == T_INT)
fp << "istore " << ve.stackIndex << endl;
else if (ve.type == T_BOOL)
fp << "istore " << ve.stackIndex << endl;
}
if (!symTabs.addVariable(ve))
yyerror("Re declaration.");
}
| LET MUT ID ':' type '=' expression ';' {
Trace("Reducing to varDec Form LET MUT ID ':' type '=' expression ';'\n");
variableEntry ve = ve_basic($3.stringVal, $5.tokenType, false);
if ($5.tokenType == T_FLOAT && $7.tokenType == T_INT)
ve.data.floatVal = $7.intVal;
else if ($5.tokenType != $7.tokenType)
yyerror("expression is not equal to expression");
else if ($7.tokenType == T_INT)
ve.data.intVal = $7.intVal;
else if ($7.tokenType == T_FLOAT)
ve.data.floatVal = $7.floatVal;
else if ($7.tokenType == T_BOOL)
ve.data.boolVal = $7.boolVal;
else if ($7.tokenType == T_STRING)
ve.data.stringVal = $7.stringVal;
if (symTabs.isNowGlobal())
{
ve.isGlobal = true;
printTabs();
if (ve.type == T_INT)
fp << "field static int " << ve.name << " = " << ve.data.intVal << endl;
else if (ve.type == T_BOOL)
fp << "field static int " << ve.name << " = " << ve.data.boolVal << endl;
}
else
{
ve.isGlobal = false;
ve.stackIndex = nowStackIndex;
nowStackIndex++;
printTabs();
if (ve.type == T_INT)
fp << "istore " << ve.stackIndex << endl;
else if (ve.type == T_BOOL)
fp << "istore " << ve.stackIndex << endl;
}
if (!symTabs.addVariable(ve))
yyerror("Re declaration.");
}
| LET MUT ID ';' {
Trace("Reducing to varDec Form LET MUT ID ';'\n");
variableEntry ve = ve_basic_notInit($3.stringVal, T_INT, false);
if (symTabs.isNowGlobal())
{
ve.isGlobal = true;
printTabs();
fp << "field static int " << ve.name << endl;
}
else
{
ve.isGlobal = false;
ve.stackIndex = nowStackIndex;
nowStackIndex++;
}
if (!symTabs.addVariable(ve))
yyerror("Re declaration.");
}
;
I didn't paste them all.
The errors are here.
I don't know how to fix them.
yacc.y:188.33-34: error: symbol ID is used, but is not defined as a token and has no rules
varDec: LET MUT ID ':' type ';' {
^^
yacc.y:191.173-174: error: $3 of ‘varDec’ has no declared type
variableEntry ve = ve_basic_notInit($3.stringVal, $5.tokenType, false);
^^
yacc.y:216.165-166: error: $3 of ‘varDec’ has no declared type
variableEntry ve = ve_basic($3.stringVal, $5.tokenType, false);
^^
yacc.y:256.165-166: error: $3 of ‘varDec’ has no declared type
variableEntry ve = ve_basic($3.stringVal, $5.tokenType, false);
^^
yacc.y:300.173-174: error: $3 of ‘varDec’ has no declared type
variableEntry ve = ve_basic_notInit($3.stringVal, T_INT, false);
Please help me solve problem, thanks.