This page describes how to fix a bug in the dll of EnergyPlus 6.0.0, build23 that may occur when exchanging a large amount of data in each time step. The error message that EnergyPlus writes to its .err file is
ExternalInterface starts first data exchange. Error: No digits were found in getDoubleCheckError. Further characters after number: Sending EXIT_FAILURE = : 1 **FATAL:Error in ExternalInterface: Check EnergyPlus *.err file.
To fix the bug, proceed as follows:
Windows
- Install the BCVTB version 1.0.0
Copy the file bcvtb/lib/util/bcvtb.dll, where bcvtb is the top-level directory of the BCVTB installation, to the EnergyPlus directory, such as C:\Program Files\EnergyPlus-6-0-0. This will replace the existing file with the same name.
Linux
- Install the BCVTB version 1.0.0
Copy the file bcvtb/lib/util/libbcvtb.so, where bcvtb is the top-level directory of the BCVTB installation, such as /usr/local/EnergyPlus-6-0-0. This will replace the existing file with the same name.
Mac
- Install the BCVTB version 1.0.0
Copy this file to the EnergyPlus lib directory, such as /Applications/EnergyPlus-6-0-0/lib. This will replace the existing file with the same name. (Do not use the file from bcvtb/lib/util, since this is a 64-bit version, but EnergyPlus 6.0.0 requires a 32-bit version.)