Fatal Error C1023

cannot open source file 'filename'

The given file either did not exist, could not be opened, or was not found.

If this error number appears without an error message, the compiler has run out of file handles.

Tips

• Make sure that the environment settings are valid and that the correct path for the file is specified.
  
  
• This error may be caused by not having enough file handles. Close some open applications and recompile.
  
  
• Trying to open a file or directory for which you do not have permission can cause this error. Move the file to a directory where you do have access privileges, or ask your network administrator to grant you access to the file.
  
  
• Make sure that the name of the file is spelled correctly.