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Having problem with Classpath, lead to more problem [message #1830483]

Mon, 27 July 2020 17:39

Mehdi K

Messages: 6
Registered: May 2020

Junior Member

It seems like the classpath is missing, trying to figure out how to solve this problem. I would appreciate if someone can help me. The initial problem I was having with something else, "Could not find or load main class" when I did something in the build path.

[Updated on: Mon, 27 July 2020 20:16]

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Re: Having problem with Classpath, lead to more problem [message #1830495 is a reply to message #1830483]

Mon, 27 July 2020 19:40

Mehdi K

Messages: 6
Registered: May 2020

Junior Member

I have solved the issue. However, the problem now here is, I am trying to add my existing java files into a new package. I do not know how to import java files into new package. When I try to run it say

Exception in thread "main" java.lang.Error: Unresolved compilation problem:

at ss/ss.Add.main(Add.java:6)

What I tried to do was, copy my java files from the other package and paste into the new package in bin folder

Attachment: Error_java.jpg
(Size: 110.93KB, Downloaded 69 times)

[Updated on: Mon, 27 July 2020 20:13]

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Re: Having problem with Classpath, lead to more problem [message #1830511 is a reply to message #1830495]

Tue, 28 July 2020 05:59

Ed Merks

Messages: 31624
Registered: July 2009

Senior Member

The package structure declared in your *.java files must mirror exactly the folder structure in the file system. Above you have the *.java file in the root "src" folder, but it declares a package name so must be in src/com/<...>. Note that it's bad style to name packages with upper case names.

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: Having problem with Classpath, lead to more problem [message #1830530 is a reply to message #1830511]

Tue, 28 July 2020 14:21

Mehdi K

Messages: 6
Registered: May 2020

Junior Member

The structure wasn't like this, I made an mistake, I believe what I had done was change the build or refactor. How would I go about this?

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Re: Having problem with Classpath, lead to more problem [message #1830552 is a reply to message #1830530]

Wed, 29 July 2020 05:12

Ed Merks

Messages: 31624
Registered: July 2009

Senior Member

I'm really not sure how you got into this state. Certainly on the first page of the Java project wizard I would choose "Create separate folders for sources and class files". It's probably better to start from scratch. On the src folder, the context menu will have things like New -> Class and New -> Package which will create the correct structure.

Ed Merks
Professional Support: https://www.macromodeling.com/

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