Welcome to the forum.
Along with the info that John T's links ask for, have you tried just doing a Copy of the card (full folder structure) to the HDD, and doing the Import from there? That would be my first course of action, and if that does not work perfectly for you, then please DO give us more info to work with.
There are several aspects of your issue that need more details.
First, what version of Premiere Elements are you using on what computer operating system is it running?
1. SD Card. Are you inserting that into a SD memory slot on the computer on which you have Premiere Elements installed? If so, then how are you trying to get the video into project? Or, are you using a card reader to get the video to the computer hard drive and then into Premiere Elements with Premiere Elements' Get Media or Add Media/Files and Folders?
2. Video On the SD Card. Although the how is important, equally important is what are the properties of the video that you have recorded to that card. What camera (brand/model/settings) recorded the video to the SD card?
Let us review the above and then decide what next. The answers will be in your details.
If you need clarification on anything that is written here, please do not hesitate to ask.
im using premier elements 12, on windows 7. I'm using a card reader, then into premier elements by get media. the camera is a kodak, not sure about the model
Premiere Elements 12 Windows 7 (assume 64 bit).
If you are using a card reader to get your video from the memory card to the computer/Premiere Elements, it sounds like you are using the following to get your video into a project...
Videos from Flip or Cameras
Is that correct? If not, please describe in detail what you are doing for the video import.
Because of the issue that you present, generic error, we are going to need to know the properties of the video that your camera is recording. Just Kodak is not going to be enough.
a. do you actually have the camera in front of you to inspect it for a model name?
b. what is the file extension of the file that you are trying to import...is it .mov? If it is, do you have the latest version of QuickTime installed on your computer along with Premere Elements 12?
You could download and install the free utility named gspot to get at the properties. If all else fails, let us give that a try.
It would be good if it turns out to be that you have not yet installed QuickTime. But, let us see.