Error uploading extension

Error uploading extension


Hi, i am developing a little extension, the source is ok, no errors found, but when i try to upload the extension to the server, it gives me a error:
Data at the root level is invalid. Line 1, position 1.

Heres a pic

I have a dll (gsdll32.dll) that occupies at least 8mb, is the problem?

I have noticed some problems with IS as well.

I think it's a problem with the Visual Studio Solution files and syncing.
It somehow screws up when you alter it.
try deleting it on the server and publish again.
if that does not work, also delete project files and solution files from Visual Studio, so Integration Studio has to create them again.

 it works. Thanks