File format not recognized

Using Blitzmax 1.10 on Win XP pro, modules synced.

Each time I save a .bmx file and try to compile it I get:

C:/Program Files/BlitzMax/tmp/ld.tmp: file not recognized: File format not recognized

If I create a new .bmx without saving it to disk first, it compiles fine. Save it to disk, that error occurs on each compile.

If I save the .bmx in
C:/Program Files/BlitzMax/tmp
it compiles fine, no error.

If I save it anywhere else, the error occurs. Why?

Ok, just as a test I copied the directory structure for the sample app Digesteroids to a different folder structure, so it is not in a subfolder of BlitzMax. Now it gives the same error, but it didn't where it was originally.

Do all projects have to be in a subfolder of the Blitzmax installation folder in order to compile, is that what the problem is?

Nope.

Ok then, any clue as to what the problem is?

Can you provide the simplest example that fails?

Anything at all fails, it doesn't matter how simple.

But...
I have discovered what the problem is.
The folder where the source code is located in cannot have the character
@
in the name of the folder.

For years, I have kept source code for all my development work under a folder named
@
but apparently the blitzmax compiler doesn't like that.

I just tested a whole bunch of variations of folder names that include the character @, and each of them cause this error on compile.

Example: put your source code in a folder named
@Testing
or
Test@Test
or any other variation
and Blitzmax will fail on compile with the error

-------------------------
Building ATest
Compiling:ATest.bmx
flat assembler version 1.51
3 passes, 2157 bytes.
Linking:ATest.debug.exe
C:/PROGRA~1/BlitzMax/tmp/ld.tmp: file not recognized: File format not recognized

Process complete
-------------------------

The problem appears also if you use extra characters like "äöü" etc. . But I think this is an old bug and should been fixed with the next update.

If it's not going to be fixed, I hope at least it is modified to give a more meaningful error message.

In my case, the culprit was the character @ in a folder name, but I'm sure as klepto has stated there must be a lot of other characters that are commonly used in folder names that cause this problem.

I have Blitz3d code under folder @, along with C++, C#, and asp.net code. No problem. Blitzmax - obscure error message.

Unless any of these 'special' characters are not allowed on Linux or Mac filesystems, I'd say you're right. File this in the bug reports forum.