[ALPS-users] underflow error reading the file

Hello, I am trying to run my first example using ALPS code for Ising model... So, reading the tutorials, I wrote the parameter-input- file (parm1a), I converted to the file parm1a.in.xml and then I tried to run the command: spinmc --Tmin 10 --write-xml parm1a.in.xml but, I received the error message: basic_filebuf::underflow error reading the file . I installed the ALPS packages before one week, so maybe there is something new in writing the input files ? Any ideas would be very helpful... Thank you in advance. Best regards, Giorgos