Dynare not picking .mod file

Dear all,
i am trying to set a path for my .mod file in matlab. but its not picking the .mod file as when i enter the folder where the .mod file lies, it appears empty.
when i give the command in dynare i.e dynare KM_debt_AEJ.mod the following error message appears in the command window
Configuring Dynare …
[mex] Generalized QZ.
[mex] Sylvester equation solution.
[mex] Kronecker products.
[mex] Sparse kronecker products.
[mex] Local state space iteration (second order).
[mex] Bytecode evaluation.
[mex] k-order perturbation solver.
[mex] k-order solution simulation.
[mex] Quasi Monte-Carlo sequence (Sobol).
[mex] Markov Switching SBVAR.

Using 64-bit preprocessor
Starting Dynare (version 4.5.7).
Starting preprocessing of the model file …
ERROR: Could not open file: KM_debt_AEJ.mod

Error using dynare (line 229)
DYNARE: preprocessing failed

please tell me what to do
thank you all!

Weird problems like this one are often caused by antivirus software.

dear Jpfeifer, thank for your quick response.
now i am encountered with the following problem

dynare topic thesis.mod

Configuring Dynare …
[mex] Generalized QZ.
[mex] Sylvester equation solution.
[mex] Kronecker products.
[mex] Sparse kronecker products.
[mex] Local state space iteration (second order).
[mex] Bytecode evaluation.
[mex] k-order perturbation solver.
[mex] k-order solution simulation.
[mex] Quasi Monte-Carlo sequence (Sobol).
[mex] Markov Switching SBVAR.

The file topic.mod could not be located in the “Current Folder”. Check whether you typed in the correct filename
and whether the file is really located in the “Current Folder”.

Current folder is C:\Users\92346\Documents\MATLAB, and contains the following mod files:

topic thesis.mod
Error using dynare (line 172)
dynare:: can’t open topic.mod

will you help me in getting rid of this problem?
Gratitude!

although i saved the .mod file to the current folder as shown in the error message but it didn’t work.

thanks

I think it is because of your .mod file’s name! It contains a space character, I suggest using topic_thesis instead of topic thesis!

Indeed, your mod-file must have a valid filename. No spaces or special characters and start with a letter.