1.The exception is:
Status: 500 Internal Server Error
no such file to load -- sqlite3
solution: need to download sqlite3.rar ,then uncompressed at the ../ruby/bin folder,then gem install sqlite3-ruby-1.2.3-mswin32.gem
2.undefined method `render_text' for # RAILS_ROOT
solution: change render_text "hello world" to : render:text => "hello world"
because the version updated now but the tutorial not
3. Status: 500 Internal Server Erro
no such file to load -- mysql
solution:gem install mysql at the ../ruby/bin folder
4.plugin scaffold
solution:ruby script/plugin install scaffolding
ruby script/plugin install http://redmine.rubyforge.org/svn/trunk/vendor/plugins/classic_pagination
5.undefined method `template_exists?' for #<BookController
E:\rubyTest\mybook\script>ruby generate scaffold Book title:string description:t
ext buydate:date will work
unkown exception always waiting for us -_-
分享到:
相关推荐
Advances and Open Problems in Federated Learning。Federated learning (FL) is a machine learning setting where many clients (e.g. mobile devices or whole organizations) collaboratively train a model ...
Programming Interview Problems and Algorithms in Ruby by Zachary Paul English | April 17, 2016 | ASIN: B01EGILLLS | 177 Pages The book covers a large number of the most common interview problems, as ...
联邦学习是一种机器学习设置,其中多个客户端(例如移动设备或整个组织)在中央服务器(例如服务提供商)的协调下协同训练模型,同时保持训练数据的去中心化。联邦学习体现了有针对性的数据收集和最小化的原则,可以...
本文档《Advances and Open Problems in Federated Learning》(联邦学习的进展与问题)汇总了当前联邦学习的主要成就,并指出了未来研究的方向。 首先,从描述中我们了解到,文档中涉及的多位作者来自世界各地的...
"ruby-challenge-problems"是一个集合,其中包含了解决各种Ruby编程挑战的实例。这个资源旨在帮助Ruby初学者和经验丰富的开发者提高他们的编程技巧,通过解决一系列难度不等的问题来深化对Ruby语言的理解。 1. **...
machine learning will change the way you think about the problems you want to solve and will show you how to tackle them by unlocking the power of data. Before we dive deeper into the machine learning...
Learning how to solve these problems will give you the skill and confidence to step up in your career. With SQL Practice Problems, you can get that level of experience by solving sets of targeted ...
This is the guide that I wish I had when I started apply deep learning to machine learning problems. I hope that you find it useful on your own projects and have as much fun applying deep learning as ...
With this book, you'll be able to tackle some of today's real world big data, smart bots, and other complex data problems. You’ll see how deep learning is a complex and more intelligent aspect of ...
Book Description: Master the essential skills needed to recognize and solve complex problems with machine learning and deep learning. Using real-world examples that leverage the popular Python ...
Transfer learning is a machine learning (ML) technique where knowledge gained during training a set of problems can be used to solve other similar problems. The purpose of this book is two-fold; ...
Develop a sound strategy to solve predictive modelling problems using the most popular machine learning Java libraries. Explore a broad variety of data processing, machine learning, and natural ...
Fix Common Performance Problems Chapter 3. Make Rails Faster Chapter 4. Profile Chapter 5. Learn to Optimize with the Profiler Chapter 6. Profile Memory Chapter 7. Measure Chapter 8. Test Performance...
matrices, and more.By the end of the book, you will understand concepts of required statistics for Machine Learning and will be able to apply your new skills to any sort of industry problems. ...
In the first module, Python Machine Learning Cookbook, you will learn how to perform various machine learning tasks using a wide variety of machine learning algorithms to solve real-world problems and...
Chapter 2:Fix Common Performance Problems Chapter 3:Make Rails Faster Chapter4:Profile Chapter 5:Learn to Optimize with the Profiler Chapter 6:Profile Memory Chapter 7:Measure Chapter 8:Test ...