[FIXED] Eclipse project folder shows error But not showing error in any files inside folder

Issue

My eclipse project folder is showing error but no error is shown anywhere inside, am not able to run my project in tomcat due to this error.

Note: It seems, after I took latest update from SVN this error occured

Any Idea why this happened

Solution

Detailed explanation here

Add the required jar files to your path

OR

May be the added jar files path mismatched.

Configure project buildPath by

RighClick on Project > BuildPath > Configure BuildPath

Answered By - Naveen Kumar Alone
Answer Checked By - Clifford M. (JavaFixing Volunteer)