s2Member Pro- help "The Plugin does not have valid header"

[Simonr1979]

Hello,

I have purchased the multi domain pro version and the installation wont work...I keep getting the error

"The Plugin does not have valid header"

Any ideas out there?

thanks for your assistance

[Bruce C]

I've seen this error before.

Two questions:

1) What version of WordPress are you using?

Whenever I saw this error, I was using WordPress 3.2. I upgraded to 3.2.1, and then it worked.

2)Is it happening when you attempt to select "Activate" or just when trying to install

The new versions of s2Member PRO no longer work as an active plugin in the conventional sense.

Instead, it automatically activates and deactivates with the regular free s2Member.

Also, make sure you already have the free version of s2Member installed.

Hope you fix your problem.