Netbeans IDE 11 cannot access java.lang Fatal Error: Unable to find package java.lang in classpath or bootclasspath

问题

I downloaded netbeans ide 11 and tried to do a sample hello world project but it is giving me error "cannot access java.lang Fatal Error: Unable to find package java.lang in classpath or bootclasspath" I tried some solutions from stack overflow but didnt worked.

/*
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 */
package javaapplication1;

/**
 *
 * @author ahmad
 */
public class JavaApplication1 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        System.out.println("Hello");
    }
    
}

Main error is " cannot access java.lang Fatal Error: Unable to find package java.lang in classpath or bootclasspath

回答1:

I also had the same issue. Solved using manually setting the default jdk.

open the netbeans.conf from <install_dir>/netbeans/etc
set the JDK home path for netbeans_jdkhome property

I am using Ubuntu 19.10

回答2:

After a complete uninstall of my distros Netbeans version, I resorted to installing Netbeans 11 LTS version from the https://netbeans.apache.org/download/nb110/nb110.html into /usr/share/netbeans. This seems to have resolved the issues in the IDE. The program also seems to compile and run faster now.

I was having very similar problems with Netbeans IDE from the Ubunutu/Mint repositories which was still on version 10 the open JDK was version 11. I could not get the IDE to display without errors - but the program would compile and run from the command line fine.

回答3:

have you installed jdk and added it to path? or you could try making a new package

回答4:

After exiting netbeans edit the config file netbeans.conf using

nano ~/netbeans-11.2/netbeans/etc/netbeans.conf

In the line netbeans_jdkhome edit the path like

netbeans_jdkhome="/usr/lib/jvm/java-11-openjdk-amd64"

(Found at askubuntu.com)

来源：https://stackoverflow.com/questions/58144934/netbeans-ide-11-cannot-access-java-lang-fatal-error-unable-to-find-package-java

标签

java

netbeans-11