The SVN::Core module is available as a part of subversion-perl package that needs to be installed separately.

For Red Hat, Fedora and variants, you can either download the RPM (find on http://rpm.pbone.net) or use the yum to download and install for you - yum install subversion-perl.

For Debain, Ubuntu, XUbuntu, Edubuntu and their other relatives, use apt to download and install it for you - apt-get install subversion-perl.

For cygwin, download and install the subversion-perl package.

]]> http://faqs.edujini-labs.com/index.php?action=artikel&cat=57&id=13&artlang=en Thu, 09 Apr 2009 03:23:35 GMT Or, you may get "There are not seven pairs of XPVCOM in system".

Well, this error may occur not only during uninstallation but also while launching the "Cellular Emulator" that is installed with the SDK.

Solution:

1. Go to your device manager. My Computer -> Properties -> Hardware -> Device Manager
    
2. Go to the entry of "System Devices"
    
   
    
3. Towards the end, you will find an entry "XPVCOM" (XP Virtual COM Port, I guess). Uninstall it.
    
   You will see this entry only when you get the error "COM<X> in use, please verify".
    
4. Now, go to the folder where you have the Cellular Emulator. The default location is "C:\Program Files\Windows SDK 6 Professional\Tools\Cellular Emulator".
    
5. You will find a utility InstallXPVCom.exe. At the command prompt, execute the following:
    
   InstallXPVcom.exe Install
    
6. Try uninstalling again, it will work.
    

Have fun!

MySQL database daemon (mysqld-nt.exe on Windows, mysqld on Linux and *nix) by default allows connection only after validating it against the users in the 'user' table in the 'mysql' database - what is referred to as the grant table.

You can turn this off by starting the server using --skip-grant-table option.

So, the steps would be:

1. Stop MySQL server / daemon, if running.
    
2. Start the daemon as
   mysqld --skip-grant-table (On *nix / Linux et al)
   mysqld-nt.exe --skip-grant-table (On Windows)
    
3. Connect using the client and change the password
   $mysql -u root (Don't specify any password, it won't be verified anyway)
   mysql> use mysql;
   mysql> UPDATE user SET Password='Password' WHERE User='root';
    
4. Update privileges
   mysql> FLUSH PRIVILEGES;

There's another way out... a slightly more cumbersome. That uses the MySQL feature that when it starts, it can execute a set of SQL statements.

That's in another FAQ :)

The semantics of the Ajax request are as follow:

var request = getRequestObject();
request.onreadystatechange = function()
{
    if(request.readyState == 4)
    {
         alert('Request completed');
    }
}
request.open('GET', 'MyURL.php', false);
request.send(null);

Notice a very important deviation from the common Ajax requests... the 3^rd paramter is false - indicating that the request is a synchronous call.

The following observations is made:

I will personally classify it a bug that the callback is not called since the readyState would be internally updated as the request is fired and data is received. As such, I would expect the callback to be called irrespective of whether it is a synchronous request or not.

Have a look at the test case attached with this FAQ entry.

So, whenever you fire the request in synchronous mode, ensure that you do care of this issue. The only workaround is to have your callback code called after send method.