Question: I have a lot of products which need to be uploaded via csv in Magento. I have for example two attributes with values:

url\_key

```
mypage

```

url\_path

```
mypage.html

```

I have also tried the values the same, but when I upload them the products exist but always leads to an 404 error when trying to view their product page.

Is there somethig I'm missing out in the csv?

I'm using Magento 1.7

Thanks in advance.

Answer: 
You have a version conflict, please verify whether compiled version and JVM of Tomcat version are same.
you can do it by examining tomcat startup .bat , looking for JAVA\_HOME
This error happens because of your Jre version of Eclipse and Tomcat are mismatched ..either change eclipse one to tomcat one or ViceVersa..

Both should be same ..`Java version` mismatched ..Check it