Linking problem with TdxAllLibrariesDll file at RunTime

I am using colibri vf61 and Running ADC_demo. i have include TdxAllLibrariesDll.dll’." and TdxAllLibrariesDll.cs with solution. But after that it is giving below exception. i have used TdxAllLibrariesDll.dll’." file other demos with successfull output. kindly help me to solve this issue

System.MissingMethodException was unhandled
Message=“Can’t find PInvoke DLL ‘TdxAllLibrariesDll.dll’.”
at AdcData.Form1…ctor()
at AdcData.Program.Main()

problem has been solved.thanks for the help.

Is dll file present on the device? In the same folder as your application