Import: Could not upload file. Check the log files for details.

I tried to transport from SBX to DEV, but when I tried to import, I got the following message: *Could not upload file. Check the log files for details*. Here is the log. I even tried the old transport file which works before, but I got the same thing.

[com.sapportals.portal.transport.ui.ImportComponent] File upload failed.

[EXCEPTION]

java.io.IOException: Bad ZIP file format: C:\Temp\_htmlb13038407082253161598928931720934.tmp; does not contain a package file.

at com.sapportals.portal.transport.ui.ImportComponent.extractPackageZip(ImportComponent.java:1936)

Thanks,

-Tony