Netbeans/java:无法找到或加载主类库

由于某些Windows问题，不幸地重新安装了我的整个计算机之后，我试图在Linux Mint上设置我的开发环境.对于Java程序的开发，我使用Netbeans.我已经安装了所有依赖项和外部库.但是，当我尝试运行该程序时，会得到以下输出:

I'm trying to setup my development environment on Linux Mint after an unfortunate reinstall of my whole computer due to some windows troubles. For the development of the Java program I use Netbeans. I allready installed all dependencies and external libraries. However when I'm trying to run the program I get the following output:

ant -f /home/***/Documents/ebart/git/projecten/nedap/Next -Dnb.internal.action.name=run run
init:
Deleting: /home/***/Documents/ebart/git/projecten/nedap/Next/build/built-jar.properties
deps-jar:
Updating property file: /home/***/Documents/ebart/git/projecten/nedap/Next/build/built-jar.properties
compile:
run:
Error: Could not find or load main class library
Java Result: 1 
BUILD SUCCESSFUL (total time: 0 seconds)

我已经尝试使其与openJDK，orcacle(常规)JDK，Ubuntu 15.04，Linux Mint，Netbeans 8.0.2，Netbeans 7.0 ...?1或2一起使用.但这并没有改变.谷歌也无法为我提供解决方案.

I already tried to make it work with openJDK, orcacle(normal) JDK, Ubuntu 15.04, Linux Mint, Netbeans 8.0.2, Netbeans 7.0...?1 or 2? but it doesn't make a difference. Also google couldn't provide me with a solution.

奇怪的是，我的主类叫做下一个"，我很确定自己选择了正确的主类(com.bata.ebart.next.Next).我想它与Java无法找到其主要库有关( http://en.wikipedia.org /wiki/Java_Class_Library )，但我不确定.我也不喜欢那个，因此我不知道该怎么做.

The strange thing is that my main class is called "Next" and I'm fairly sure that I selected the right Main Class (com.bata.ebart.next.Next). I suppose it has something to do with that java cannot find its main libraries(http://en.wikipedia.org/wiki/Java_Class_Library) but I'm not sure about that. Also I am not into that and therefore I have no clue what to do.

有人知道如何解决此问题或在正确的方向帮助我吗?

Does someone know how to solve this issue or help me in the right direction?