SYMPTOMS
When attempting to import a class into a project using ClassWizard, and
locating the header file and implementation file using the Browse buttons
to select a path to each file, you may get an error when you click the OK
button even though the paths to the files are valid.
If either path has a drive letter in it, ClassWizard displays a message box
with this error message:
The file name "<full path to file>" is not
a valid file name. Please enter a valid file name.
When the message box is dismissed, the Import Class dialog has the path
highlighted for change even though the file name and path are valid.
If either path is a relative path that does not include drive letter, such
as ..\..\DIR1\DIR2\MYFILE.H, ClassWizard displays a message box with this
error message:
The file names [<full path to header file>, <full path to implementation
file>] for class "<class name>" do not exist or are invalid file
names.
ClassWizard will accept a relative path that indicates one level above the
current directory, such as ..\DIR1\DIR2\MYFILE.H.
RESOLUTION
To successfully import the class, change the path to the header and
implementation files, so they are not relative paths and do not contain a
drive letter. For example, ClassWizard will not accept this:
C:\DIR1\MYFILE.H and ..\..\..\MYFILE.H
But ClassWizard will accept this:
\DIR1\MYFILE.H
An alternative solution is to copy the files to the project directory. Note
that in any case, you need to add the class implemenation files to your
project. When you import a class, ClassWizard will not update your project
to include the implementation files for the classes you import.