Category Archives: Visual Studio

VS2012 Update 3 / Update 4, “Unable to locate package source”

If you are going to install VS2012 Update 3/ Update 4, You may found out that a dialog box pops in the middle of the installation. It may look like this,

Unable to locate package source

It is asking you for the location of the following files
1) Windows App Certification Kit x64-x86_en-us.msp
2) Windows App Certification Kit x86-x86_en-us.msp
3) Windows App Certification Kit Native Components-x64_en-us.msp
4) Windows App Certification Kit Native Components-x64_en-us.msp

There are 2 ways that you could get these files.
1) Download the VS2012.3.iso (if you are running Update 3) or VS2012.4.iso (if you are running Update 4). Exact the contents and you will found the files when navigate to “.\packages\WinACK\”
a. VS2012.3.iso (
b. VS2012.4.iso (

2) Download the files directly,
a. Windows App Certification Kit x64-x86_en-us.msp (×409)
b. Windows App Certification Kit Native Components-x64_en-us.msp (×409)

Start the Update 3 / Update 4 installer again. When it asks for these files, point it to the path where you downloaded the files. The installation should proceed after this and finish successfully.

‘Microsoft.VisualStudio.Editor.Implementation.EditorPackage’ package did not load correctly

I have experience on getting an error after install Visual Studio 2012 on a new Win7 professional machine.

‘Microsoft.VisualStudio.Editor.Implementation.EditorPackage’ package did not load correctly

After getting some searching and found out that the solution is pretty simple. Removing %LOCALAPPDATA%\Microsoft\VisualStudio\11.0\ComponentModelCache and restarting VS2012 fixed the problem for me. Hope this will help if you meet the same error.

The new features introduced in each version for C# (1.0 – 5.0)

Last week I have a gathering with all current and ex-HK MVPs. During the dinner, we talked about what is the difference between each new version of C#. Please allow me to have a short summary of this topic into a picture. You are welcome to share this picture to your friends, your user group, your colleagues.

P.S. Noted that Microsoft has just announced that VS2013 will be coming soon, I will come back to this once it is Release or in Beta.



VS2012 Giveaway is not there this time

Since VS2005, all Developer MVPs has 3 giveaway on the VS subscription. Some MVPs were giving it to public, some MVPs were giving to friends, some MVPs were giving it to memebrs of their local community. However, this time there is no such giveaway when VS2012 launch. Why? I don’t know the reason. But I think, VS2012 which is targeting Win8 development and Microsoft should enourage developers to build apps to Microsoft Store. So I highly recommend tht MVP program could try to arrange this.

Visual Studio 11 is now rename to Visual Studio 2012, and is turning from Beta to RC

Following Windows 8 is released its Release Preview, Visual Studio 11 is also having some changes since 1st June 2012. Now Visual Studio 11 is confirmed to be named Visual Studio 2012, and also it is now turning from Beta to RC. This means that it is going to be RTM. in my personal thinking, it might be released in the same date as Windows 8. So as a developer, you really need to catch up some changes on HTML 5 supporting in Visual Studio 2012, and also the Metro Development for Windows 8.

Don’t forget to browse to Compare VS2012 Products Page to get their difference between the difference products of VS2012