How to solve Siebel SBL-DAT-00142 error (Could Not Open Repository File)

Error message:
SBL-DAT-00142: Could Not Open Repository File

Solution:
Set the following environment variables on the end of siebenv.sh script:
MWSTG_WAITOPEN=1; export MWSTG_WAITOPEN
MWSTG_WAITOPEN_TIMEOUT=100;export MWSTG_WAITOPEN_TIMEOUT