I have an error in my travis build, which I cannot understand. Do you have an idea, why this build fails?
Part of Log
Output written on MAIN_Masterthesis.xdv (27 pages, 68280 bytes).
Transcript written on MAIN_Masterthesis.log.
e[0me[1me[31merror:e[0m the TeX engine had an unrecoverable error
e[0me[1me[31mcaused by:e[0m halted on potentially-recoverable error as specified
Link to formatted log.