How to resolve errors all together in eclipse

How to resolve errors all together in eclipse

I guess I was in the same environment as everyone else.

Yet, I am the only one getting a lot of build errors and mysterious warnings.

I guess I have to destroy the errors one by one in such cases.

I have compiled a list of error resolution methods that you can use in Eclipse.

Error-solving list

Clean the project

There is a possibility that the modification has not been reflected, so clean the project.

Project → Clean

If the cause of the problem has not been identified, check the "Start Build Immediately" checkbox and build the project.

When multiple projects coexist in the same project, there is no error when clean-building a single project. 

Still, there is an error when clean-building the whole project. 

In this case, I was told by a senior colleague that it is OK to do a clean build by itself, but I am not sure.

Clean Build Server

It is an effective method in case of errors on the server, so it is not related to build errors but clean the server just in case.

Select the server from the server view, right-click → Clean

If there is no server, adding a server and a project may clear the error.

Start with clean

There might be some garbage data, so try to start with clean.

Create an eclipse shortcut key

Right-click on the shortcut key → Properties

Add "- clean" at the end of the link

Example: xx.exe - clean

Check the Java version

A difference between the Java version used in the project and the version of Java in the local environment can cause many errors.

Window → Preferences → Java → Installed JRE

If the version shown here is different from your project, add the correct JAVA JDK. Since this is the default Java, check the project version as well.

If the JRE and JDK versions are the same, then it is common to keep the JDK, although both JDK and JRE are the same.

Depending on where you downloaded the JDK, it is common to select JDK for C:\Program Files\Java. Double-check that you are loading the JDK in the intended path.

Match the compiler to the JDK version

If the version of the JDK is different from the version of the compiler, it may cause errors.

Open Window → Preferences → Java → Compiler.

Check if the compiler compliance level in JDK Compliance is correct.

Even if it is correct, change to another version and apply. Change it back again.

The same error did not occur even if I reverted to the original version once I fixed it.

If you are using SVN

If you are using SVN, you can also try the following.

Project → right click → update

Project → right click → Team → Cleanup

Do a project cleanup as well.

If the update doesn't work, try closing the project.

Project → right-click → close project

After closing, reopen the project.

It worked for me when I had multiple projects.

Check the server settings

It may not be related to the build error, but check the server settings.

Double click on the server (overview)

General Information → Runtime → JRE is correct?

Check if the server path is correct.

Check the library

Project → right-click → "Build Path" → "Build Path Configuration" → "Library" tab

Even if the library is included, removing it once and then adding it again and applying it may fix the problem.

Also, check the other tabs to see any strange paths.

Check resource paths

Project → Right-click → Property → Resource

Check if the path is correct.

If the path is not correct, use grep to search

If the path is incorrect, use grep to search for the wrong path. In case you use Sakura Editor.

ctrl + g

Condition: Word you want to search

File: *. *.

Folder: Top-level folder you want to search

Later defaults


Checks for suspicious items that have been caught.

Extra: Check Style

If there are no special instructions for check styles, you can ignore them.


It summarizes what we have found to be effective in resolving the errors we have experienced many times.

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