The type is not registered as safe “Custom Actions”

Question

I am trying to create a custom actions using wsp builder, My folder structure is something like this,

Now when I try to deploy solution nothing comes up however I get this error in my ULS log,

Failed to create a control from assembly '', class '': The control with assembly name '', ' class name '' is not allowed for web at URL ''. The type is not registered as safe.

I removed assembly names myself, however I read this another question they asking to add manifest.xml file but not sure where it will go and whether creating a wsp using wsp builder will include manifest.xml in wsp and will solve the problem ?

Answer 1

You can add an empty Module to your project, open properties window and set Safe Control Entities property of a new added module. This property allows to add collection of safe controls.

Answer 2

you need to add this to the featureActivated function for feature recivers

        SPWebConfigModification safeControl = new SPWebConfigModification();
                    safeControl.Path = "configuration/SharePoint/SafeControls";
                    safeControl.Owner = ModuleNameGoesHere;
                    safeControl.Name = "SafeControl[@Assembly='assembly.Name.goes.Here, Version=1.0.0.0, Culture=neutral, PublicKeyToken=87b3480442bff091'][@Namespace=Namespace.Name.goes.Here'][@TypeName='*'][@Safe='True']";
                    safeControl.Type = SPWebConfigModification.SPWebConfigModificationType.EnsureChildNode;
                    safeControl.Sequence = 0;
                    safeControl.Value = "<SafeControl Assembly='assembly.Name.goes.Here, Version=1.0.0.0, Culture=neutral, PublicKeyToken=87b3480442bff091' Namespace=Namespace.Name.goes.Here' TypeName='*' Safe='True' />";
                    mService.WebConfigModifications.Add(safeControl);
                    mService.Update();
                    mService.ApplyWebConfigModifications();

the code above adds the the feature or whatever it maybe to the safe controls in web.config for you! this is the recommended way and abides by best practices. So when you activate the feature it will add the safe controls :)

EDIT

more can be found here similar to the example above! and yes this is best practice and was put inplace by microsoft specificaly for registering safecontrols without you manually doing it and it automatically gets added every time you activate the feature on the required web.config thats within the webapplication so no need to do it manualy multiple times :) :

A collection of web.config modifications is a set of commands that, when processed by the web.config manipulator in Microsoft SharePoint Foundation, change the state of the web.config file. You can string together a set of these commands to ensure that they apply the desired tags and attributes within web.config. Each modification is expressed as an object in the administrative object model.

Use the WebConfigModifications property of the SPWebApplication or SPWebService class to get the collection of web.config modifications either in the Web application or in all Web applications within the Web service. To apply modifications that you define through the SPWebConfigModification class to the web.config files in the server farm, call the ApplyWebConfigModifications method on the current content Web service object, as follows: SPWebService.ContentService.ApplyWebConfigModifications

http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.administration.spwebconfigmodification.aspx

hope it helps :)

EDIT 2

If its a webpart then yes you should have a manifest file called manifest.xml with the following:

<?xml version="1.0" encoding="utf-8" ?>
<Solution xmlns="http://schemas.microsoft.com/sharepoint/" SolutionId="{C1938CC9-A1A3-4e20-932C-33ECB2C47481}">
  <Assemblies>
    <Assembly DeploymentTarget="GlobalAssemblyCache" Location="WebPartsname.dll">
      <SafeControls>
        <SafeControl Assembly="namespacegoeshere, Version=1.0.0.0, Culture=neutral, PublicKeyToken=918d2ffdab83e9e8"
                     Namespace="namespacegoeshere" TypeName="*" Safe="True"/>
      </SafeControls>
    </Assembly>
  </Assemblies>
</Solution>

hope it sheds some light :)