I am getting resource not on the buildpath of the project [duplicate]

This question already has answers here: E开发者_如何学JAVAclipse: The resource is not on the build path of a Java project (16 answers) Closed 5 years ago.

I am getting The resource is not on the buildpath of the project when I am trying to "Organize imports" or trying to access any class properties. I am building my project with ant.I tried to configure my buildpath in javabuilpath -> Projects but it is not showing me my src folder there.I am not able to use quick assist (ctrl + space) and class related properties because of the same reason and it does not show me any syntax errors also while i am writing my code.

please help me.

thanks

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I just hit this problem myself, and it's baffling. You get it in a bunch of different places as you try and treat a Java file as, you know, a Java file but Eclipse hasn't figured out that it's actually a class within your project. The reason it doesn't know (or the reason it didn't know in my case) was because the directory hasn't been marked as a source directory for the project. So you need to tell the project configuration that the file is in a directory that holds source files. Here's how:

1. Open your project's properties.

2. Under "Java Build Path", click on the "Source" tab.

3. Click "Add Folder..."

4. Find the folder where you have the unrecognized java file. (In my case it was test->Java)

5. Put a check by the folder. (I put it only by "java" and not by "test" given that the test folder holds a lot of other stuff.)

6. Click ok, click OK again, perhaps refresh, and you should be good to go.

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Your src folder shouldn't appear in the Java Build Path -> Projects tab. Rather, it should appear under Source tab.

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Try imorting the class files as external jar.

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What icon is used for the file? If it is an outline J eclipse doesn't recognize the file as being a source file of the project.

If so, you need to declare the parent folder of your package a source folder, i.e. if the path looks like ".../src/my/package/MyClass.java" the "src" must be declared a source folder (right click -> Build Path -> Use as Source Folder)