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Why is extending native objects a bad practice?
... The only (but good) argument that remains is, that some humongous macro-libs could start to take over of your types and may interfere with each other. Or is there anything else?
– buschtoens
Dec 26 '12 at 3:53
...
How to fix the uninitialized constant Rake::DSL problem on Heroku?
...the standard Rakefile for my app:
# Add your own tasks in files placed in lib/tasks ending in .rake,
# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
require File.expand_path('../config/application', __FILE__)
require 'rake'
MyApp::Application.load_tasks
...
rgdal package installation
...ample here , but rather how to make it work. In fact, I am unable to load library rgdal :
17 Answers
...
libxml/tree.h no such file or directory
... your project file."
Setting up your project file
You need to add libxml2.dylib to your project (don't put it in the Frameworks section). On the Mac,
you'll find it at /usr/lib/libxml2.dylib and for the iPhone, you'll
want the
/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPho...
VR硬件行业洗牌进行时 70%创业公司倒闭转行做内容 - 资讯 - 清泛网 - 专注C...
...决定性因素，就像APP一样，如果智能手机上的APP都不太好用，那么消费者可能会觉得，智能手机不过如此，但是如果APP让消费者觉得很神奇，因此就能产生购买欲。所以优质内容是积累用户的基础。”
关于如何抓住内容的切入...
How to create a library project in Android Studio and an application project that uses the library p
...
To create a library:
File > New Module
select Android Library
To use the library add it as a dependancy:
File > Project Structure > Modules > Dependencies
Then add the module (android library) as a module dependency....
Convert a String representation of a Dictionary to a dictionary?
...File "<string>", line 1, in <module>
File "/opt/Python-2.6.1/lib/python2.6/shutil.py", line 208, in rmtree
onerror(os.listdir, path, sys.exc_info())
File "/opt/Python-2.6.1/lib/python2.6/shutil.py", line 206, in rmtree
names = os.listdir(path)
OSError: [Errno 2] No such file ...
Java: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification
... and add it to cacerts file of your JVM. You can either edit JAVA_HOME/jre/lib/security/cacerts file or run you application with -Djavax.net.ssl.trustStore parameter. Verify which JDK/JRE you are using too as this is often a source of confusion.
See also: How are SSL certificate server names resolv...
Error installing mysql2: Failed to build gem native extension
...buntu/Debian and other distributions using aptitude:
sudo apt-get install libmysql-ruby libmysqlclient-dev
Package libmysql-ruby has been phased out and replaced by ruby-mysql. This is where I found the solution.
If the above command doesn't work because libmysql-ruby cannot be found, the follow...
docker mounting volumes on host
...ur container.
Example:
You have a Dockerfile that defines a VOLUME /var/lib/mysql.
You build the docker image and tag it some-volume
You run the container
And then,
You have another docker image that you want to use this volume
You run the docker container with the following:
docker run --vol...