An error occurred during creation of an instance of the custom transform module, which is an extensibility point for third-party ...

An error occurred during creation of an instance of the custom transform module, which is an extensibility point for third-party code. 
Assembly path: %1 

User Action 
Review the custom module settings in the trust policy file, and consider reviewing the code in the custom transform module constructor for possible defects. 

Additional Data 
Exception information: 
%2