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Heroku/devise - Missing host to link to! Please provide :host parameter or set default_url_options[:
...t error.
When you push to heroku you need to configure the environment.rb file with the heroku subdomain:
config.action_mailer.default_url_options = { :host => 'yourapp.heroku.com' }
Depending upon version, this should go in production.rb, not environment.rb.
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How to split strings across multiple lines in CMake?
I usually have a policy in my project, to never create lines in text files that exceed a line length of 80, so they are easily editable in all kinds of editors (you know the deal). But with CMake I get the problem that I do not know how to split a simple string into multiple lines to avoid one huge ...
Android: How to turn screen on and off programmatically?
...o, make sure you have the following permission in the AndroidManifewst.xml file:
<uses-permission android:name="android.permission.WAKE_LOCK" />
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How can I send mail from an iPhone application
...h an attachment here the attachments is an image .You can send any type of file only thing is to keep in mind is that you had to specify the correct 'mimeType'
add this to your .h file
#import <MessageUI/MFMailComposeViewController.h>
Add MessageUI.framework to your project file
NSArra...
Python: How to get stdout after running os.system? [duplicate]
... Windows solution. Using IDLE with Python 2.7.5, When I run this code from file Expts.py:
import subprocess
r = subprocess.check_output('cmd.exe dir',shell=False)
print r
...in the Python Shell, I ONLY get the output corresponding to "cmd.exe"; the "dir" part is ignored. HOWEVER, when I add a sw...
Node.js, can't open files. Error: ENOENT, stat './path/to/file'
... are relative to the current working directory, not relative to the script file. So the file might be found if you run node app.js but not if you run node folder/app.js. The only exception to this is require('./file') and that is only possible because require exists per-module and thus knows what m...
Automatically plot different colored lines
...x" at the bottom of this post.
There is a great tool on the MATLAB Central File Exchange to generate any number of visually distinct colors, if you have the Image Processing Toolbox to use it. Read on for details.
The ColorOrder axes property allows MATLAB to automatically cycle through a list ...
[解决]MySql提示:The server quit without updating PID file(…)失败 - 数...
[解决]MySql提示:The server quit without updating PID file(…)失败服务器症状：今天网站web页面提交内容到数据库，发现出错了，一直提交不了，数找了下原因，发现数据写不进去！第一反应，重启mysql数据库，...服务器症状：
今天网站we...
git push to specific branch
... <remote> <branch>. If you look at your remote in .git/config file, you will see an entry [remote "origin"] which specifies url of the repository. So, in the first part of command you will tell Git where to find repository for this project, and then you just specify a branch.
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Should URL be case sensitive?
...s that are hosted on Windows tend to be case insensitive as the underlying file system is case insensitive. Sites hosted on Unix type systems tend to be case sensitive as their underlying file systems are typically case sensitive. The host name part of the URL is always case insensitive, it's the re...