Hi All,

I overriden standard new button of Account with lightning component.. since last 5 days it has been giving error message as "cannot specify id in an insert call"..
The problem is when a new record is created and try to create another record the previous record values remains (pre populated) in the input fields and not allowing to create another record.

Error Message : invalid_field_for_insert_update cannot specify id in an insert call

Here is my code
Apex class :
@AuraEnabled
     public static Account saveAccount(account acc){
              insert acc;
            return acc;
     }

Component : 

<aura:component implements="lightning:actionOverride" access="global" controller="apexHandler">
    <aura:attribute name="newAcc" type="Account" default="{'sobjectType': 'Account'}" />    
<aura:attribute name="accountType" type="String[]" default="Insurance,MSO,IPA,PCP,SNF,ALF,Hospital,Home Health,Other"/>
<lightning:input name="accountName" label="Account Name"         required="true" value="{!v.newAcc.Name}" class="slds-size--1-of-2 slds-p-horizontal_x-small"/>
<lightning:select aura:id="accType" name="accType" label="Account Type"  value="{!v.newAcc.Account_Type__c}" onchange=" {!c.conditionalDisplay}" class="slds-size--1-of-2 slds-p-horizontal_x-small" required="true" messageWhenValueMissing="Please Select a Value">
          <option value="">--None--</option>
           <aura:iteration items="{!v.accountType}" var="item">
                  <option value="{!item}">{!item}</option>
               </aura:iteration>
    </lightning:select>
       <lightning:button variant="neutral" label="Cancel" onclick="{!c.cancelDialog}" />
                <lightning:button variant="brand" label="Save" onclick="{!c.saveRecord}" />
</aura:component>

Controller : 
          
 saveRecord : function(component,event,helper){
var accRec = component.get("v.newAcc");
 var action = component.get("c.saveAccount");
         action.setParams({
                 "acc" : accRec
             });        
        action.setCallback(this,function(response){
             var state = response.getState();
             var resultsToast = $A.get("e.force:showToast");
             if(state == "SUCCESS"){
                resultsToast.setParams({
                    "title": "Saved",
                    "message": "The Account Record is saved.",
                    "type" : "success"
              });
              
                 component.set("v.newAcc",response.getReturnValue());
                 var recId = component.get("v.newAcc.Id");
                 console.log('Account Record Id== >> '+recId);
                 resultsToast.fire(); 
                 helper.navigateTo(component,recId);
                }else if(state == "ERROR"){
               console.log('Error: ' + JSON.stringify(response.getError()));
                 resultsToast.setParams({
                     "title": "Error",
                     "type" :"error",
                     "message": "Please Enter Account Name: " + JSON.stringify(response.getError())
                 });
                 resultsToast.fire();
                 console.log('Unknown problem, state: ' + response.getState() + ', error: ' + JSON.stringify(response.getError()));
            }
        });
         $A.enqueueAction(action);
       }
I'm not sure what's wrong with the code, Could you pls help me with this.