Fix "an unknown error occurred while opening the project" cc 2015/2017/2018/2019/2020/2021
If you faced with "an unknown error occurred while opening the project"
first check your autosaves folder
God forbid if you can't open any of them either, then don't waste your time anymore. Those files are corrupted and needs some surgery and reconstructions on the XML core that needs programming skills and at the sametime knowing Premiere pro project's XML mechanism.
If you are able to deal with those codes then go for it but if you not...
I can help you fixing your files. just drop me a line "chooriy" at gmail.com and attach your project file. Soon I will contact you for further processes.
I'm doing this for about 4 years and there are lot's of successful recoveries of mine you can find in the posts below.
I'm very fast and will answer all requests so quickly.
Solved: An Unknown error occurred while opening the projec... - Adobe Support Community
CC 2017: An unknown error occurred while opening t... Adobe Support Community
