Question

我开始编程，我正在使用Visual Studio。我有一个简单的程序，几天前工作，但在使用另一个项目后，它返回一个错误：

'Project1.exe' (Win32): Loaded 'B:\Mis Documentos\Documents\Visual Studio 2015\Projects\Project1\Debug\Project1.exe'. Symbols loaded.
'Project1.exe' (Win32): Loaded 'C:\Windows\System32\ntdll.dll'. Symbols loaded.
'Project1.exe' (Win32): Loaded 'C:\Windows\System32\kernel32.dll'. Symbols loaded.
'Project1.exe' (Win32): Loaded 'C:\Windows\System32\KernelBase.dll'. Symbols loaded.
'Project1.exe' (Win32): Loaded 'C:\Windows\System32\vcruntime140d.dll'. Symbols loaded.
'Project1.exe' (Win32): Loaded 'C:\Windows\System32\ucrtbased.dll'. Symbols loaded.
'Project1.exe' (Win32): Loaded 'C:\Windows\System32\api-ms-win-core-timezone-l1-1-0.dll'. Symbols loaded.
'Project1.exe' (Win32): Loaded 'C:\Windows\System32\api-ms-win-core-file-l2-1-0.dll'. Symbols loaded.
'Project1.exe' (Win32): Loaded 'C:\Windows\System32\api-ms-win-core-localization-l1-2-0.dll'. Symbols loaded.
'Project1.exe' (Win32): Loaded 'C:\Windows\System32\api-ms-win-core-synch-l1-2-0.dll'. Symbols loaded.
'Project1.exe' (Win32): Loaded 'C:\Windows\System32\api-ms-win-core-processthreads-l1-1-1.dll'. Symbols loaded.
'Project1.exe' (Win32): Loaded 'C:\Windows\System32\api-ms-win-core-file-l1-2-0.dll'. Symbols loaded.
Debug Assertion Failed!

Program: ...ments\Visual Studio 2015\Projects\Project1\Debug\Project1.exe
File: minkernel\crts\ucrt\src\appcrt\stdio\output.cpp
Line: 31

Expression: stream != nullptr

For information on how your program can cause an assertion failure, see the Visual C++ documentation on asserts.

但是我无法编译它，它返回给我this error。这是日志：

stream.foreachRDD(rdd => {
  rdd.foreach(record = > parseAVROToString(record))
})

Answer 1

您没有检查文件是否实际打开。您应该在调用fopen

后检查文件是否实际打开

FILE *A = NULL;
....
A = fopen("B:\\Mis Documentos\\Coding\\Test 200.txt", "wt");
//Check if file was actually opened
if(A) {
....
}

检查此功能的文档，例如here。您还应该初始化A变量，这是一个很好的做法。

Answer 2

最后这是我的错，我没有创建文件夹＆＃34; Coding＆＃34;我想要的文件。我可以完成我现在想做的事情，但我看到如果我想在我的Google云端硬盘文件夹中创建该文件，有时候其他人也不会做。不知道为什么，也许是因为它连接到互联网？

无论如何，非常感谢你的快速帮助！

调试断言失败。 nullptr

2 个答案: