"Java Breakpoint Unable to install breakpoint" error when Eclipse makes debug

Error situation diagram:

Solution to the problem:

Direct Click Ignore: Don ' t tell me again

Answer from the Internet ~ ~

I had the same error message in Eclipse 3.4.1, SUN jvm1.6.0_07 connected to Tomcat 6.0 (running in Debug-mode on a dif Ferent machine, Sun jvm1.6.0_16, the debug connection do work correctly). Window---Preferences-----Compiler---Classfile Generation: "Add line number attributes to generate D class file "was checked. I did a clean, recompile. I did uncheck it, recompile, check it, recompile. I made sure the project did use the global settings. Still the same message. I switched to ant build, using<JavacSrcdir= "./src/java"Destdir= "./bin"Debug= "true">still, same message. I didn ' t find out what the caused this message and why it wouldn ' t go away. Though it seemed to has something to does with the running Tomcat debug Session:when disconnected, recompiling solves the Issue. But on connecting the debugger to Tomcat or on setting new breakpoints during a connected debug session, it appeared again . However, it turned out the message was Wrong:i is indeed able to debug and set breakpoints, both before and during debug Ging (Javap-l did show line numbers, too). So just ignore it:)

Source: Http://stackoverflow.com/questions/957822/eclipse-unable-to-install-breakpoint-due-to-missing-line-number-attributes

"Java Breakpoint Unable to install breakpoint" error when Eclipse makes debug