Every time I try to launch a Project in UE4 it takes a couple minutes until it fails. The log says “PackagingResults:Error: Error Launch failed! Unknown Error” I could also post the whole log.
Hi DasBesteBruno,
Yes, in order for us to determine the cause of the fail we would need the entire log. Also, you can troubleshoot for yourself by pasting the entire contents of the log into a text editor program and searching the word “error.” Once you determine the source of the error, you can either fix it if you know how or paste or Google “UE4 plus [the error]” as it is likely your error has already been addressed.
Let me know if you need further assistance and, if so, include the entire output log.
Thanks,
.
Thanks, I found the mistake and solved it with the help of google 
next time include a solution to your reply so others may resolve it aswell…