Our website is running Magento version - 184.108.40.206. We have already applied the following security patches - SUPEE-1533, SUPEE-5344, SUPEE-5994, SUPEE-6285, SUPEE-6482, SUPEE-7405, SUPEE-7405 v1.1 . We are now trying to apply the patch - 8788 v2 . We tried directly first . It threw error. Then we tried after reverting 1533. Still the same error. Then we tried on a fresh instance of 220.127.116.11 with all previous patches applied as mentioned above. Still the same error . Can you please assist us on this. We need to apply the patch successfully. My previous comment gives the screenshot of the error message. Please check and provide us a solution.
Thanks & Regards,
Try with Demac's tool for SUPEE-8788 and let me know if it helped you.