Invalid Operand int and string in operator +

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Invalid Operand int and string in operator +

ike

hi everyone i had this error in my codeand y dont find the solution

var Money = 500000

var charge = 0
var employes = 0
var empl_salary = 0 
var aid = 0
var emp_cost = 0 
#aides#
var A_logement =0
var A_nationale =0
var A_citoyens =0

##budget##
var B_transport = 0
var B_electrique = 0
var B_eau = 0
var B_secI = 0
var B_DefE = 0
var B_Infra = 0
var B_sanT = 0


func _calc():
	aid = A_citoyens + A_logement + A_nationale
	emp_cost = empl_salary * employes
	Money -=charge
	charge = aid + emp_cost + B_DefE + B_transport + B_Infra + B_eau + B_electrique + B_sanT + B_secI

can you help me please ?

DaveTheCoder

Is there other code that sets one of those variables to a String? That would explain the error.