Upon adding TestNG to Java buildpath the following errors in eclipse are coming Any solutions Thanks

Question

There are 2 errors showing up in eclipse for TestNG Adding to Java project build path.

1,

Description Resource Path Location Type

Invalid classpath container: 'TestNG' in project 'seleniumwebdriv' seleniumwebdriv Build path Build Path Problem

Description Resource Path Location Type

2 The project cannot be built until build path errors are resolved seleniumwebdriv Unknown Java Problem