Originally Posted by dutss
You are right. I downloaded the wrong file. I downloaded cm-10.1-20130709-NIGHTLY_v2-mb526 but I get the same error message (I made another screenshot).
Try starting again from SBF, root, 2ndinit. Then try installing.
If it still doesn't work, download an old CM10 build (maybe November/December builds), flash it, then flash dual recovery v3 (in the development section) and then try flashing the latest build.
If you need help, please post in the Q&A section of the appropriate forum. Search before asking