Constructor error

[f0rza]

There's an error in constructor: StackRedis.L1.RedisL1Database(IDatabase redisDb)

Method 'HashStringLength' in type 'StackRedis.L1.RedisL1Database' 
from assembly 'StackRedis.L1, Version=0.2.1.0, Culture=neutral, PublicKeyToken=null' does not have an implementation.

Package versions used:

  <package id="StackExchange.Redis" version="2.2.88" targetFramework="net462" />
  <package id="StackRedis.L1" version="0.2.1" targetFramework="net462" />
  <package id="CachingFramework.Redis" version="12.0.6" targetFramework="net462" />

Connection is valid, able to work with db using StackExchange.Redis.IDatabase instance