Format of the initialization string does not conform to specification starting at index 0 when using postgresql database in .net 6 app

trying to update my database via dotnet ef database update, however the build starts and succeeds and then errors out with the following:

    System.ArgumentException: Format of the initialization string does not conform to specification starting at index 0.
   at System.Data.Common.DbConnectionOptions.GetKeyValuePair(String connectionString, Int32 currentPosition, StringBuilder buffer, Boolean useOdbcRules, String& keyname, String& keyvalue)
   at System.Data.Common.DbConnectionOptions.ParseInternal(Dictionary`2 parsetable, String connectionString, Boolean buildChain, Dictionary`2 synonyms, Boolean firstKey)
   at System.Data.Common.DbConnectionOptions..ctor(String connectionString, Dictionary`2 synonyms, Boolean useOdbcRules)
   at System.Data.Common.DbConnectionStringBuilder.set_ConnectionString(String value)
   at Npgsql.NpgsqlConnectionStringBuilder..ctor(String connectionString)
   at Npgsql.NpgsqlConnection.GetPoolAndSettings()
   at Npgsql.NpgsqlConnection.set_ConnectionString(String value)
   at Npgsql.NpgsqlConnection..ctor(String connectionString)
   at Npgsql.EntityFrameworkCore.PostgreSQL.Storage.Internal.NpgsqlRelationalConnection.CreateDbConnection()
   at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.get_DbConnection()
   at Microsoft.EntityFrameworkCore.Diagnostics.RelationalLoggerExtensions.MigrateUsingConnection(IDiagnosticsLogger`1 diagnostics, IMigrator migrator, IRelationalConnection connection)
   at Microsoft.EntityFrameworkCore.Migrations.Internal.Migrator.Migrate(String targetMigration)
   at Microsoft.EntityFrameworkCore.Design.Internal.MigrationsOperations.UpdateDatabase(String targetMigration, String connectionString, String contextType)
   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.UpdateDatabaseImpl(String targetMigration, String connectionString, String contextType)
   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.UpdateDatabase.<>c__DisplayClass0_0.<.ctor>b__0()
   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute(Action action)
Format of the initialization string does not conform to specification starting at index 0.

worth mentioning that my appsettings.json is in the api solution, and my dbcontext file is in my data access layer

appsettings.json
{
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft.AspNetCore": "Warning"
    }
  },
  "AllowedHosts": "*",
  "ConnectionStrings": {
    "prattleDatabase": "Host=localhost; Database=prattle; Username=develop; Password=develop123;"
  }
}

programs.cs

builder.Services.AddDbContext <PrattleContext> (option =>
    option.UseNpgsql(builder.Configuration.GetConnectionString("prattleDatabase")));

and my dbcontext:

   public class PrattleContext : DbContext 
    {
        protected readonly IConfiguration _configuration;

        public PrattleContext()
        {

        }

        public PrattleContext(IConfiguration configuration)
        {
            _configuration = configuration;
        }


        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {

            var builder = new ConfigurationBuilder().SetBasePath(Directory.GetCurrentDirectory())
                .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true);

            var dbConnectionInfo = builder.Build().GetSection("ConnectionStrings").GetSection("prattleDatabase").Value;

            optionsBuilder.UseNpgsql("dbConnectionInfo");

        }

        public DbSet<User> Users { get; set; }

        public DbSet<Message> Messages { get; set; }
    }

Copyright Notice：Content Author:「dros」，Reproduced under the CC 4.0 BY-SA copyright license with a link to the original source and this disclaimer.
Link to original article：https://stackoverflow.com/questions/73185765/format-of-the-initialization-string-does-not-conform-to-specification-starting-a