Visual Studio – “The type or namespace name ‘DataContractJsonSerializer’ does not exist in the namespace ‘System.Runtime.Serialization.Json’ (are you missing an assembly reference?)”

The type or namespace name ‘DataContractJsonSerializer’ does not exist in the namespace ‘System.Runtime.Serialization.Json’ (are you missing an assembly reference?)

in Italian:

Il tipo o il nome dello spazio dei nomi ‘DataContractJsonSerializer’ non esiste nello spazio dei nomi ‘System.Runtime.Serialization.Json’; probabilmente manca un riferimento a un assembly

Solution:

Add the following References to your project:

System.Runtime.Serialization
System.ServiceModel.Web

In Solution Explorer, right-click on the project node and click Add Reference to select the dll files.
Remember to add using or Imports lines inside your file.

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Visual Studio – “The type or namespace name ‘DataContractAttribute’ does not exist in the namespace ‘System.Runtime.Serialization’ (are you missing an assembly reference?)”

The type or namespace name ‘DataContractAttribute’ does not exist in the namespace ‘System.Runtime.Serialization’ (are you missing an assembly reference?)

in Italian:

Il tipo o il nome dello spazio dei nomi ‘DataContractAttribute’ non esiste nello spazio dei nomi ‘System.Runtime.Serialization’; probabilmente manca un riferimento a un assembly

Solution:

Add the following References to your project:

System.Runtime.Serialization
System.ServiceModel.Web

In Solution Explorer, right-click on the project node and click Add Reference to select the dll files.
Remember to add using or Imports lines inside your file.

Did my solution solve your problem? Leave a reply.

Google AdMob Ads Windows Phone 7 – “Xap packaging failed. Object reference not set to an instance of an object.”

When you try to build Google AdMob Ads Windows Phone 7 sample show the following error message:

Xap packaging failed. Object reference not set to an instance of an object

In Italian

Xap packaging failed. Riferimento a un oggetto non impostato su un’istanza di oggetto.

Cause:

Into the WMAppManifest.xml file there is the following line:

<BackgroundImageURI IsRelative="true" IsResource="false">Background.png</BackgroundImageURI>

but in the project not exists the Background.png file.

Solution:

Add Background.png image file like this:

Google AdMob Ads Windows Phone 7 sample Background missing

to the project, then right-click your Background.png in Solution Explorer, select Properties and set Build Action to Content

NOTE: Apply these steps for Google.AdMob.Ads.Sample.Fundamentals and Google.AdMob.Ads.Sample.Intermediate projects.

Note 2: The very first time AdMob sees your publisher ID it may take up to two minutes to receive an ad. This initial two minute lag will recur every time the app goes unused for 24 hours.

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Visual Studio – “The type or namespace name ‘Json’ does not exist in the namespace ‘System.Runtime.Serialization’ (are you missing an assembly reference?)”

The type or namespace name ‘Json’ does not exist in the namespace ‘System.Runtime.Serialization’ (are you missing an assembly reference?)

in Italian:

Il tipo o il nome dello spazio dei nomi ‘Json’ non esiste nello spazio dei nomi ‘System.Runtime.Serialization’; probabilmente manca un riferimento a un assembly

Solution:

Add the following References to your project:

System.Runtime.Serialization
System.ServiceModel.Web

In Solution Explorer, right-click on the project node and click Add Reference to select the dll files.
Remember to add using or Imports lines inside your file.

Did my solution solve your problem? Leave a reply.