Migrating Named Credential with password in salesforce

I had a scenario like when migrating a named credential with password in salesforce production. I resolved that issue so I came here to give a solution for Password error problem.

1. Retrieve a Named credential from Ant Migration tool

2. XML will Look like this,

<?xml version="1.0" encoding="UTF-8"?>

<NamedCredential xmln="http://soap.sforce.com/2006/04/metadata">

<endpoint>https://prodbox-dev.herokuapp.com/v1</endpoint>

<label>prodbox_heroku</label>

<principalType>NamedUser</principalType>

<protocol>Password</protocol>

<username>technical.user.prod@techuser.dev</username>

</NamedCredential>

When i deploy the same using ant, it displays error for password.

So I added a password manually after retrieve.

<?xml version="1.0" encoding="UTF-8"?>

<NamedCredential xmln="http://soap.sforce.com/2006/04/metadata">

<endpoint>https://prodbox-dev.herokuapp.com/v1</endpoint>

<label>prodbox_heroku</label>

<principalType>NamedUser</principalType>

<protocol>Password</protocol>

<password>actual Password</password>

<username>technical.user.prod@techuser.dev</username>

</NamedCredential>