gen already exists but is not a source folder. Convert to a source folder or rename it.

本文详细介绍了在Eclipse中遇到导入项目时出现的[classpath]文件错误,即gen文件存在但不是源文件夹,通过设置正确的源文件夹路径来解决此问题,并提供了解决步骤及正常类路径文件的正确格式。

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异常提示:

gen already exists but is not a source folder. Convert to a source folder or rename it.
 

错误原因:

我在导入以前的项目的时候出现了这个异常,原因是.classpath文件(这个文件在eclipse中是看不到的,必须在文件浏览器中才能看到并编辑)出错,导致eclipse不能识别我的src代码文件夹,需要通过设置来指明源码所在的文件夹。
 

解决办法:

右键项目,选择Properties——Java Build Path——Source——Add Folder...
然后在弹出框中选中项目的src和gen目录,OK即可。如下图所示:


 
当然,既然是.classpath文件出错,我们也可以通过手动修改.classpath文件来修复这个错误,下面我们来看下正常的.classpath文件,如下:
[xml]  view plain copy 在CODE上查看代码片 派生到我的代码片
 
  1. <?xml version="1.0" encoding="UTF-8"?>  
  2. <classpath>  
  3.     <classpathentry kind="src" path="src"/>  
  4.     <classpathentry kind="src" path="gen"/>  
  5.     <classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>  
  6.     <classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.LIBRARIES"/>  
  7.     <classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.DEPENDENCIES"/>  
  8.     <classpathentry exported="true" kind="lib" path="libs/android-support-v4.jar"/>  
  9.     <classpathentry exported="true" kind="lib" path="libs/gson-2.2.4.jar"/>  
  10.     <classpathentry exported="true" kind="lib" path="libs/umeng_sdk.jar"/>  
  11.     <classpathentry kind="output" path="bin/classes"/>  
  12. </classpath>  


kind="src"指明源码位置
kind="con"指明当前系统环境
kind="lib"指明工程依赖的library的具体位置
kind="output"指明项目生成文件的输入位置
 
修复这个异常只需要我们手动指明src的源码位置即可。

转载于:https://www.cnblogs.com/hudabing/p/3731483.html

import os import shutil def check_file_or_directory_exists(path): if os.path.exists(path): if os.path.isfile(path): return "File exists" elif os.path.isdir(path): return "Directory exists" return None else: return "Path does not exist" def read_file_content(file_path): try: with open(file_path, 'r', encoding='utf-8') as file: content = file.read() return content except FileNotFoundError: return "File not found." except Exception as e: return str(e) def write_file_content(file_path, content): try: with open(file_path, 'w', encoding='utf-8') as file: file.write(content) return "File written successfully." except FileNotFoundError: return "File not found." except Exception as e: return str(e) def copy_entire_folder(src_dir, dest_dir): try: shutil.copytree(src_dir, dest_dir) return "Folder copied successfully." except FileExistsError: return "Destination directory already exists." except Exception as e: return str(e) def main(): backup_dir = input("请输入备份的目录: ") file_to_backup = input("请输入要备份的文件或文件夹: ") dir_status = check_file_or_directory_exists(backup_dir) if dir_status == "Path does not exist": os.makedirs(backup_dir) file_status = check_file_or_directory_exists(file_to_backup) if file_status == "File exists": file_content = read_file_content(file_to_backup) backup_file_path = os.path.join(backup_dir, os.path.basename(file_to_backup)) result = write_file_content(backup_file_path, file_content) print(result) elif file_status == "Directory exists": backup_folder_path = os.path.join(backup_dir, os.path.basename(file_to_backup)) result = copy_entire_folder(file_to_backup, backup_folder_path) print(result) else: print("要备份的文件或文件夹不存在") if __name__ == "__main__": main()
05-11
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