config.cache_classes = true

จึงทำให้เกิด Error นี้ :/ . หา คำตอบไม่ได้ แต่ Comment แล้ว Appfog update ผ่าน.

DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/config/environment.rb:5)
/mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/app/decorators/goal_decorator.rb:1:in `<top (required)>': uninitialized constant Draper::Base (NameError)
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/railties-3.2.13/lib/rails/engine.rb:439:in `block (2 levels) in eager_load!'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/railties-3.2.13/lib/rails/engine.rb:438:in `each'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/railties-3.2.13/lib/rails/engine.rb:438:in `block in eager_load!'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/railties-3.2.13/lib/rails/engine.rb:436:in `each'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/railties-3.2.13/lib/rails/engine.rb:436:in `eager_load!'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/railties-3.2.13/lib/rails/application/finisher.rb:53:in `block in <module:Finisher>'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `instance_exec'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `run'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/railties-3.2.13/lib/rails/initializable.rb:55:in `block in run_initializers'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `each'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `run_initializers'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/railties-3.2.13/lib/rails/application.rb:136:in `initialize!'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/railties-3.2.13/lib/rails/railtie/configurable.rb:30:in `method_missing'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/config/environment.rb:5:in `<top (required)>'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/config.ru:3:in `block in <main>'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:51:in `instance_eval'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:51:in `initialize'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/config.ru:in `new'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/config.ru:in `<main>'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:40:in `eval'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:40:in `parse_file'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/rack-1.4.5/lib/rack/server.rb:200:in `app'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/railties-3.2.13/lib/rails/commands/server.rb:46:in `app'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/rack-1.4.5/lib/rack/server.rb:304:in `wrapped_app'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/rack-1.4.5/lib/rack/server.rb:254:in `start'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/railties-3.2.13/lib/rails/commands/server.rb:70:in `start'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/railties-3.2.13/lib/rails/commands.rb:55:in `block in <top (required)>'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/railties-3.2.13/lib/rails/commands.rb:50:in `tap'
from /mnt/var/vcap.local/dea/apps/done-0-5f97e3776b2a3e76c4a89fbe4be1e836/app/rubygems/ruby/1.9.1/gems/railties-3.2.13/lib/rails/commands.rb:50:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'

However, I still keep those DVDs in case that one day, it may have good DVD drive enough to read those broken DVD data. and that day come. I just brought my new laptop, with the new DVD reader head, it be able to read some content of DVD data. Badly, it cannot read the whole disc, mostly it be able to read inner burned DVD section (like first 800MBs). After that, it always show message on checksum error. Something like "L-EC Uncorrectable Error" (From ImgBurn software).

Luckily, some investigation is corrected! I think that sometime it may be possible that DVD reader head is too hot (when it beam the READ laser from the crystal, if it too hot, the light wavelength may be also change which should impact to read quality). So, luckily, ImgBurn be able to Pause during make the disc image, so, when the drive working for 15 minutes, I make the manual pause for another 15 minutes to sure that drive is cool down enough, then resume the operation, .... and that is work!. It be able to read more data after resume the operation back after pause it.

Hope that this technical may help someone who have some old data on DVDs. note that it may not help to fully recovery your data from damaged DVD. but at least some data like Video DVD is prepared to be broken can continue to see the movie inside.

After stuck when try to install Solid-state drive with the new laptop (Dell 15R 5521) finally, 24 hrs, I am be able  to change be on SSD drive. Usually it should take much longer like these, but by lack of resource about Win8 and new introduced technology UEFI and GPT, I am totally lost the way, until I said that if this round not working, I will be defeat and move back to Win7 instead. And then,.... it become working in this round.

Boot Error Screen - Winload.efi error. Your PC needs to be repaired. Error Code : 0xc0000225

To make it work, I don't have fully correct step-by-step but this blog may help in case that you experience the same problem.

First, open the command line and run `diskpart` .... Tool provided from Windows. select SSD drive, in a DISKPART prompt,

• list disk
• select disk 2  #select your SSD drive
• convert GPT # assume that you have unformatted SSD, this will convert your drive as GPT structure
• hm, you may follow instruction from Microsoft link here.

After that, use the Macrium Reflect (Cloning tool) to clone all partitions on your original harddisk to SSD drive

• use Win8 create recovery drive tool, to create your USB drive (At the time I created, it request for 16GB+ USB device)
• swap the harddisk to SSD drive
• remove Secure boot from your bios (may not require)
• Boot by recovery USB drive
• open the command line
• run diskpart again
• select disk 1 # your SSD drive
• select part 1 # your EFI boot partition
• detail part
• assign letter=S # assign S:\ to your EFI boot partition
• run bcdboot c:\windows /s S: /f UEFI
• if you got the sucessful statement, you are luck! if not, go to check BIOS secure drive configuration
• now, try to boot with your SSD harddisk
• if you are lucky, you may got the Win8 back!.

There is a utility called raspi-config. This runs on first boot if you're connected directly to the RPi. If you're over SSH you can run it manually using $ sudo raspi-config. (I think you can re-run the tool manually at any time).

The second option on the blue dialog that follows is titled expand_rootfs, with the description "Expand root partition to fill SD card".

Selecting this will cause your root partition to be resized to fill the card the next time you boot your RPi.

(By Jon Egerton)

source: http://raspberrypi.stackexchange.com/questions/499/how-can-i-resize-my-root-partition

The way to manage is not much easy like connect to Raspberry Pi because the IP address is change as a daily by the ISP. I don't like to rely on ADSL router because it has a case that I lost of control of all devices in a house because the ADSL router have reset its state and nobody know how to configure it.

So, my way is that make the Reverse secure shell tunnel connect from Raspberry Pi inside a house to my EC2 instance. This way will ensure that even the ADSL router haven't forward any ports, I still can manage devices in a house.

Now, the way is not much hard. Just install AutoSSH -- this application will help to restart a service if SSH connection is dead. and run a command as below on a Pi.

autossh -2 -N  -M 20000 -R $SERVER_PORT:localhost:22 $USERNAME@$SERVER

that's all. so, simple. Manageable. ^^

By this way, to connect to a Pi, I just SSH to $SERVER and the SSH on that server terminal to a Pi. or, just make tunnel from my machine direct to Pi!. Yeh!.

So, below is a script to retrieve IP address from `ifconfig` linux command then save in a file. After that, it will revoke remote URL and pass an IP as query string.

Code on the Pi box

ifconfig -a | grep inet |head -n1 > /home/pi/ipaddress.txt
IP=`cat /home/pi/ipaddress.txt`
curl --url "http://<remote_addr>/detect_ipaddress.php" -L -G --data-urlencode "$IP" > /dev/null

Code on the destination side

<?php

$h = fopen('ipaddress_of_pi_device.txt','w');
fwrite($h,'QUERY:' . urldecode($_SERVER['QUERY_STRING']) . "\n");
fwrite($h,'Remote Addr:' . $_SERVER['REMOTE_ADDR'] . "\n");
fwrite($h,'X:' . $_SERVER['HTTP_X_FORWARDED_FOR'] . "\n");
fwrite($h,'Client IP:' . $_SERVER['HTTP_CLIENT_IP'] . "\n");

fclose($h);

So, this script also simple. It got the query string and put into a file on a  server side which can access from anywhere. Right now, I can know the IP from REMOTE_ADDR and the internal IP address from QUERY_STRING.

What we can do for another way?

• If you are in the same network area, you may detect the IP address from ARP command
• If you use DHCP server and you have access to DHCP table, you may look into a Pi IP address from the table
• Static IP address to your Pi Mac address

Software : hMailServer for Windows

1. Create the local domain, domain.local
2. Create user account, test@domain.local
3. Create new Rules (in the root tree)
   1. Criteria: Delivery attempts Greater than 0
   2. Criteria: Recipient list not contains domail.local
   3. Action: Forward email to test@domain.local
   4. Action: Delete email

So, what I done here are

* Unbind the command which binding with CTRL+C, CTRL+V, CTRL+X

You will still use the shortcut key to Copy-Cut and Paste as the basic as the Windows can do without use the function from the Eclipse.

user@WARUNLAPTOPPG /d/var/dd_dev (local/dd_dev)
$ git svn fetch
fatal: git cat-file bbecab29fb11d90e09dd53a59e13320a296bd632: bad file
cat-file commit bbecab29fb11d90e09dd53a59e13320a296bd632: command returned error: 128

There are missing object in the repository. Luckily I am, that there are git-svn clone in the other machine, and I use the same command `git cat-file commit bbecab29fb11d90e09dd53a59e13320a296bd632` and found the contents inside.

So, to solve this problem, I just copied the content of the working machine to the corrupted repository machine by use the following command

Source code

git cat-file commit bbecab29fb11d90e09dd53a59e13320a296bd632 > make_it_magic.txt

Then, copy the file to the machine which have the broken tree. Run the following command

Source code

cat make_it_magic.txt | git hash-object -w -t commit --stdin

And after that, pray to have problem resolved.