I think you just don’t have your path set up correctly. You should check out the mobclix plug-in thread at the top of this post. I think some people ran into the same issue.
Actually i have integrated the tapjoy for android in unity project, i am using Unity3d ver 4.3, every thing integrated just fine in the first attempt, it is showing me the offer wall and but when i press the test offer and it is showing me that user will get the certain coins, but problem starts now , i am not getting the sucusses message in call back hendler , actually none of the call back handlers are called,
What i have done till now is ,
Imported the tapjoy for android from their website,
Edited the manifest and added permissions and activities which required for tap joy,
Checked that manifest file is in the directory called plugins/Android/manifest.xml
Created Empty game object named “TapBind” with i have attached script which initialises the tap joy and also has a function to show offer wall (also set the object name “TapEvent” as call back handler)
Created Second Empty game object named “TapEvents” which has all the call back handlers added and also methods,.
Note : also attached the File which is the second way i tried to solve the issue, please check the attached file,