I downloaded the .jar Jsoup file from jsoup.org/download. I then ran eclipse and imported the .jar files into a java project. However, I keep getting an error when I type
import org.jsoup.nodes.*;
I want to use the Document class in that file.
I made sure the syntax was correct and everything, but the error won't go away. Anyone know what the problem could be?
You need to add the JAR file to project's build path. Drop the JAR in the project's root folder or some /lib folder, rightclick the JAR file and then choose Build Path > Add to Build Path.
Unrelated to the concrete problem, using wildcard imports is not the best practice. Rather specify the imports separately, or just let Eclipse autocomplete it by entering Ctrl+Space after typing Document in the code.
Right click on project in Eclipse > Properties > Java Build Path > Add Jar > select the jar from your project which you imported before > ok
Related
So I have imported by two .jar files into the libs folder using the following method:
Right click on libs > Import > Import File System and then bring them in.
Once they get brought in, right click libs > Build Path > Configure Build Path and add them to the Build Path of the project.
However, when I imported the package I needed to use in my project, it gave me the error "The import org.codehaus cannot be resolved."
Any idea how to fix this issue?
Place the jars in the libs folder of your project as you have done. Then, right click on the jar, go to Build Path -> Configure Build Path. In the Libraries tab click Add JARs... and select the library jar. Then, go to the Order and Export tab and make sure that the library jar is checked.
Here's some info I found on integrating Jackson libraries: http://supersabrams.com/blog/?p=81
You only need to put them in the libs folder.
Remove them from the build path as this will cause problems with libraries declaration.
I have executable jar file which is running perfectly when i am double clicking on it. but when i extracted the source code from jar file using jdk gui and trying to execute it in eclipse helios it is displaying the following errors
The project was not built since its build path is incomplete. Cannot find the class file for ControlPoint. Fix the build path then try building this project
The type ControlPoint cannot be resolved. It is indirectly referenced from required .class files
I tried refreshing the source folder, changing the output folder of eclipse, but nothing worked for me.
Can anyone please help.
I think you need to specify the right JRE in your buildpath. Also, you need to check if all the required libraries are added to the buildpath.
You won't be able to build and run until classpath is fixed. Check whether a library containing ControlPoint class is in class path, if not, then add it there.
You can find the library this way
http://www.findjar.com/index.x;jsessionid=EBF627F4D0BAEC200B8DF6DE50C3C47B?query=ControlPoint
If the ControlPoint class is in the sources that you extracted then make sure that this source folder is in the sources paths, if not add it there in project properties -> java build path -> source
I am getting this error:-NoClassDefFoundError wherever the code is using StringUtils class or methods .I have correctly added the jar files to the code and is not showing any kind of error in my code(Using Eclipse Indigo).
Is there any kind of point I am missing out. I have used this jar file in other projects but they worked properly.
Please help If any one is getting similar kind of problem?Thanks
Yes, this because of your .jar file didn't import properly. Follow below steps -
Place your .jar file in your project's libs folder .
Import it into your project. And, GoTo project -> properties -> Java build path -> order tab.
Check, whether your .jar file checked and placed in order of 1st. This is the main thing.
Hope these steps helps you. Have a look at below image -
Note that the build classpath is different from the runtime classpath. You must add the required JARs to both.
It's one of the things I don't like in Eclipse...
EDIT: To add JARs to the runtime classpath: in Eclipse, double click the plugin.xml file associated with your project. On the Runtime tab there is a Classpath category. From there, you can add JARs to the runtime classpath.
Here is a screenshot to illustrate this:
Are the jar files in a lib folder or a libs folder?
Newer SDKs require the jar files to be in a libs folder.
I do not know how you execute your code, but it clearly means that the jar is not properly added to your classpath, especially if your code compiles in Eclipse.
Add it to your classpath -or re-check it is well added- when executing and it should work.
Right click on project, Select Build Path -> Configure Build Path and Select Libraries tab. Then with add Jars, add the jar in question.(if you are using eclipse)
I imported a JAVA project in my Eclipse workspace.
In the "Problams" window it says that the project is missing some required jar libraries, and gives a path which is wrong and not where this jar libraries are located.
The libraries are in my project but in other path.
How can i point to the right path of this required files?
Thanks.
Right click on the project, go to properties, then select java build path, then go to the libraries tab and fix the entries.
I'm having a problem with imports in one of my java applications.
I've Taken a working JSP out of one Eclipse project, Jar'd up all the classes from that project and put it into a new project.
In the new Project I've imported the jar file generated from the original, and pasted the jsp code into a new JSP document.
I'm getting "The import XX could not be resolved errors".
Anyone one have any idea how to diagnose this, everything seems to be in order.
I have an issue like this once in awhile. Try removing the JAR, rebuilding, and adding the JAR again. This should fix it.
It's an Eclipse bug.
Edit: The above answer is assuming the jar is actually on the build path.
When you say "I've imported the jar file" you mean you have copied it or put it in the classpath?
When you add a Jar file, instead of Import, right click on the project and choose "Add External Library" or "Add External Jar"
It sounds like the jar you imported doesn't appear in your build path. Try right-clicking the project, select Build Path > Add External Archives...
This should put a reference to your jar in the project build path.
Check inside the Jar (just open it from the build path) and see if the paths are correct. If you have foo.Bar as something else than foo/Bar.class that might be it.