Error in Eclipse The project cannot be built until build path errors are resolved

Question

I am a computer science student learning Java  so I do some work at home and at college on a mixture of Linux and Windows  I have a problem after copying a new project into the Eclipse workspace  The project shows up  but with a red exclamation mark and an error saying      The project cannot be built until build path errors are resolved   How can I fix this  I tried the solution described here  but it didn t work

User · Answer

Open the Problems view  You can open this view by clicking on the small   sign at the left hand bottom corner of eclipse  It s a very tiny plus with a rectangle around it  Click on it and select problems   The problem view will show you the problems that need to be resolved    If the message says  the project is missing the required libraries      you need to configure your build path by right clicking on your project  selecting properties  then build path  Add the required jar files using the libraries tab   -If there are other problems other than missing libraries  you need to post the exact problems here to get a precise solution

User · Answer

If not working in any case   then delete your project from the Eclipse workspace and again import as a Maven project if that is a Maven project  Else import as an existing project    I tried all the previous given solutions  but they didn t work  but it works for me

User · Answer

I also had this problem in my system  but after looking inside the project I saw the XML structure of the  classpath file in the project path was incorrect  After amending that file the problem was solved

User · Answer

Identify  project navigator  or  package explorer  view  Right click on your project  select Build Path -- gt  Configure build Path  In the emerging window  you will find four tabs  select  Libraries  There  under  Web app libraries   expand it   you will see the libraries added to the project s classpath  Check if all of them are available  If one or more are not  they ll have  missing  beside their name and a red mark on their icon   check if you need them  perhaps you don t   if you don t need them  remove it  if you need them  exit this window  look out for the missing jar and IMPORT it into your project

User · Answer

In my case  all libraries in the build path were OK   To solve it  I deleted all project metadata   project   classpath   settings  and re-imported the project as a Maven project

User · Answer

Go to Project  gt  Properties  gt  Java Compiler  gt  Building Look under Build Path Problems Un-check  quot Abort build when build path error occurs quot   It won t solve all your errors but at least it will let you run your program

User · Answer

If you can t find the build path error  sometimes menu Project   Clean    works like a charm

User · Answer

In Eclipse  go to Build Path  click  Add Library   select JRE System Library  click  Next   select option  Workspace default JRE i    and click  Finish    This worked for me

User · Answer

Right click your Project   Properties   Java Build Path   Libraries Remove the file with red  X   something like JRE     Add Library   That s how I solved my problem

[java] Error in Eclipse: "The project cannot be built until build path errors are resolved"

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