为Android使用eclipse的错误——没有找到与给定名称匹配的资源。

Common problem I'm sure, but I can't figure it out. In my AndroidManifest.xml and main.xml I'm getting the no resource found that matches the given name. I've double checked for typos and it used to work, but now I'm popping up with all these errors saying it can't find my strings in my strings.xml. Common problem I'm sure, but I can't figure it