Makefile找不到其他類（Java，Linux，Ubuntu）

我想爲我的類創建一個makefile，但看起來好像 makefile無法看到或找到我的類，儘管它們在相同的文件夾中。Makefile找不到其他類（Java，Linux，Ubuntu）

它運行時，我運行javac但不是當我運行生成文件。

的Makefile

JAVAC=/usr/bin/javac 
dir=src/myrepo 

.SUFFIXES: .java .class 

.java.class: 

     $(JAVAC) -cp . $< 

default: $(dir)/*.class 

clean: 
     if [ -e $(dir)/*.java~ ] ; then rm $(dir)/*.java~; fi 
     mv $(dir)/*.class bin; fi

目錄是Assignment/Makefile，Assignment/src/myrepo（在myrepo所有類）

類是PrintIt.java，BinarySearchTree.java，BinaryTree.java，Record.java（所有myrepo）

錯誤：

/usr/bin/javac -cp . src/myrepo/BinarySearchTree.java 
src/myrepo/BinarySearchTree.java:3: error: cannot find symbol 
public class BinarySearchTree extends BinaryTree { 
            ^
    symbol: class BinaryTree 
src/myrepo/BinarySearchTree.java:9: error: cannot find symbol 
     public void insert (Record d){ 
          ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:16: error: cannot find symbol 
     public void insert (Record d, BinaryTreeNode<Record> node){ 
          ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:16: error: cannot find symbol 
     public void insert (Record d, BinaryTreeNode<Record> node){ 
            ^
    symbol: class BinaryTreeNode 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:16: error: cannot find symbol 
     public void insert (Record d, BinaryTreeNode<Record> node){ 
                ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:30: error: cannot find symbol 
     public BinaryTreeNode<Record> find (Record d){ 
              ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:30: error: cannot find symbol 
     public BinaryTreeNode<Record> find (Record d){ 
      ^
    symbol: class BinaryTreeNode 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:30: error: cannot find symbol 
     public BinaryTreeNode<Record> find (Record d){ 
          ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:37: error: cannot find symbol 
     public BinaryTreeNode<Record> find (Record d, BinaryTreeNode<Record> node){ 
              ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:37: error: cannot find symbol 
     public BinaryTreeNode<Record> find (Record d, BinaryTreeNode<Record> node){ 
                ^
    symbol: class BinaryTreeNode 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:37: error: cannot find symbol 
     public BinaryTreeNode<Record> find (Record d, BinaryTreeNode<Record> node){ 
                    ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:37: error: cannot find symbol 
     public BinaryTreeNode<Record> find (Record d, BinaryTreeNode<Record> node){ 
      ^
    symbol: class BinaryTreeNode 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:37: error: cannot find symbol 
     public BinaryTreeNode<Record> find (Record d, BinaryTreeNode<Record> node){ 
          ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:47: error: cannot find symbol 
     public void delete (Record d){ 
          ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:51: error: cannot find symbol 
     public BinaryTreeNode<Record> delete (Record d, BinaryTreeNode<Record> node){ 
              ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:51: error: cannot find symbol 
     public BinaryTreeNode<Record> delete (Record d, BinaryTreeNode<Record> node){ 
                 ^
    symbol: class BinaryTreeNode 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:51: error: cannot find symbol 
     public BinaryTreeNode<Record> delete (Record d, BinaryTreeNode<Record> node){ 
                     ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:51: error: cannot find symbol 
     public BinaryTreeNode<Record> delete (Record d, BinaryTreeNode<Record> node){ 
      ^
    symbol: class BinaryTreeNode 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:51: error: cannot find symbol 
     public BinaryTreeNode<Record> delete (Record d, BinaryTreeNode<Record> node){ 
          ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:70: error: cannot find symbol 
     public BinaryTreeNode<Record> findMin (BinaryTreeNode<Record> node){ 
               ^
    symbol: class BinaryTreeNode 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:70: error: cannot find symbol 
     public BinaryTreeNode<Record> findMin (BinaryTreeNode<Record> node){ 
                  ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:70: error: cannot find symbol 
     public BinaryTreeNode<Record> findMin (BinaryTreeNode<Record> node){ 
      ^
    symbol: class BinaryTreeNode 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:70: error: cannot find symbol 
     public BinaryTreeNode<Record> findMin (BinaryTreeNode<Record> node){ 
          ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:77: error: cannot find symbol 
     public BinaryTreeNode<Record> removeMin (BinaryTreeNode<Record> node){ 
               ^
    symbol: class BinaryTreeNode 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:77: error: cannot find symbol 
     public BinaryTreeNode<Record> removeMin (BinaryTreeNode<Record> node){ 
                   ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:77: error: cannot find symbol 
     public BinaryTreeNode<Record> removeMin (BinaryTreeNode<Record> node){ 
      ^
    symbol: class BinaryTreeNode 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:77: error: cannot find symbol 
     public BinaryTreeNode<Record> removeMin (BinaryTreeNode<Record> node){ 
          ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:10: error: cannot find symbol 
      if (root == null) 
       ^
    symbol: variable root 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:11: error: cannot find symbol 
       root = new BinaryTreeNode<Record> (d, null, null); 
       ^
    symbol: variable root 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:11: error: cannot find symbol 
       root = new BinaryTreeNode<Record> (d, null, null); 
         ^
    symbol: class BinaryTreeNode 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:11: error: cannot find symbol 
       root = new BinaryTreeNode<Record> (d, null, null); 
             ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:13: error: cannot find symbol 
       insert (d, root); 
         ^
    symbol: variable root 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:19: error: cannot find symbol 
        node.left = new BinaryTreeNode<Record> (d, null, null); 
            ^
    symbol: class BinaryTreeNode 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:19: error: cannot find symbol 
        node.left = new BinaryTreeNode<Record> (d, null, null); 
               ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:24: error: cannot find symbol 
         node.right = new BinaryTreeNode<Record> (d, null, null); 
             ^
    symbol: class BinaryTreeNode 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:24: error: cannot find symbol 
         node.right = new BinaryTreeNode<Record> (d, null, null); 
                 ^
    symbol: class Record 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:31: error: cannot find symbol 
      if (root == null) 
       ^
    symbol: variable root 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:34: error: cannot find symbol 
       return find (d, root); 
           ^
    symbol: variable root 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:48: error: cannot find symbol 
      root = delete (d, root); 
      ^
    symbol: variable root 
    location: class BinarySearchTree 
src/myrepo/BinarySearchTree.java:48: error: cannot find symbol 
      root = delete (d, root); 
          ^
    symbol: variable root 
    location: class BinarySearchTree 
40 errors 
Makefile:12: recipe for target 'src/myrepo/*.class' failed 
make: *** [src/myrepo/*.class] Error 1

來源

2017-04-03 Hendri Vermeulen

嘗試「dir =/src/myrepo」。好像你缺少正斜槓。 – Naidu

看來classpath是錯誤的。你使用當前目錄但不應該是「./src」？假設myrepo是一個包名。 – vanje

您還應該考慮使用像Maven，Gradle或Ant這樣的Java特定構建工具。 Make和Java不是最好的朋友。 – vanje

找到了解決辦法：

# Assignment 1 makefile 
# Hendri Vermeulen 
# 29 March 2017 

JAVAC=/usr/bin/javac 
dir=src/myrepo 

.SUFFIXES: .java .class 

.java.class: 
     $(JAVAC) -cp src/myrepo $< 

default: $(dir)/Record.class $(dir)/BinaryTree.class $(dir)/BinarySearchTree.cla 

clean: 
     if [ -e $(dir)/*.java~ ] ; then rm $(dir)/*.java~; fi 
     mv $(dir)/*.class bin; fi

不得不添加「-cp SRC/myrepo」與編譯命令，我的類路徑的目錄。

來源

2017-04-05 11:19:24

Makefile找不到其他類（Java，Linux，Ubuntu）

回答

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