Very often, it is the case that there is a compilation error in a project, yet I can't really find the source of the error.
For instance:
This web project has an error, yet it's basically my guess as to what the error is. Why isn't there a way to right-click an option called "find source of compilation error"? There's no quick fix option available.
This is a simple question. I don't understand why this is an issue, because Eclipse knows what the problem is, but why won't Eclipse tell me?
Press CTRL + 3 then type Problems and hit Enter. This should show a list of all the issues in the project.
Related
I was just looking at my java project in eclipse, compiled it, and after closing program all projects in my solution show billions of errors.
Example:
The import java.awt cannot be resolved
When i try to compile it show error:
A JNI error has occured, please check your installation and try again.
Any clues how to fix it? I had many problems with java in the past and i couldn't fin any fixes, almost like it was designed to fail. This language vexes me, but sometimes you just have to use it.
Edit
I also get this error while attempting to open it in IntelliJ (just downloaded it):
JDK jre.1.8.0_241 is missing
Edit
Its just Java being Java (aka not working, as usual). You have to create new project and just copy everything to it, it will work.
It shows too many errors but the codes we're ok.
Put your mouse on the red fork, IDE will display the detailed error message.
first check all the methods were define correctly all the required statements should be imports. even though the errors are still then just do one thing.
got Project tab and clean the project.
this is enough for resolving the errors.
One day I opened eclipse and randomly got this "(x) Cannot be resolved to a type" (x could be, for example "String"). This happens on all my existing projects, and all projects I create. I cleaned all projects, restarted eclipse, and restarted my computer, all to no avail. What could be the cause and how can i fix it? Please provide an explanation as to what the cause is. Thank you.
This can happen when you change Java version from the build path.
You could try this.
Check Java version, change it if it's not what it's supposed to be.
restart eclipse.
All errors should automatically go.
I've got a problem with Eclipse Kepler. In my Java project i've got some warnings and now they are shown as error marks (red crosses) in the project explorer.
It looks like this picture http://i.stack.imgur.com/H8j7f.png
So my question is:
Is it possible to switch it back to the yellow cross for warnings and red cross for errors?
I haven't found anything about it, so I hope you can help me.
Edit:
I've made a test project, and here is a screenshot:
Thanks!
It might me because you set the compiler to mark as errors what used to be a warning. You can set this in the Window->Preference menu. So open it and go into Java->Compiler->ErrorsWarnings and check if everything is like you want it to be.
You can also check into the compiler menu (Java->Compiler) if the java Compiler compliance level is set as you want it to be as #Chrylis suggested.
Otherwise it might be because your program is unable to compile because of a dependency problem then you might want to check your build path or JRE in the Run configurations menu.
Right click on your project -> Run as -> Run Configurations.
I solved it :)
At the first start I took my old workspace as workspace. Because of that there was an Error "Missing Action set" (I've found the "error log"-window :) ) and thats why the red crosses has been shown.
Now I have a new workspace and now everything is fine!
I am suddenly getting this error from eclipse when compiling.
Internal compiler error: java.lang.NullPointerException at
org.eclipse.jdt.internal.compiler.apt.dispatch.AnnotationDiscoveryVisitor.visit(AnnotationDiscoveryVisitor.java:61)
The project is an android project. Any clues? Don't want to do another eclipse reinstall! Help!
Little late, but I had the same problem and also tried to find solution. Maybe it will help someone in the future:
The problem is that Eclipce is unable to compile files and it throws an exception. In my case the fix was:
Move for now all compiled sources (buildBin folders)
Move for now all custom builders (.externalToolBuilders) if you have ones, and all .settings folder
Restart Eclipse and let it build
Fix compilation problems :)
Paste back all previously removed files (to not loose any settings\builders)