Filesystem error: cannot remove all [YjLu0asVxy]

Installation and Setup
1

Hi,

I am using dynare_version ‘4.6.3’ under Windows 10.

I am trying to run dynare from Matlab using the statement

eval([‘dynare ‘,ModFileName,’ noclearall nostrict’]);

The program runs correctly for the first time. However, when I try to run again I obtain the error

terminate called after throwing an instance of ‘std::filesystem::__cxx11::filesystem_error’
what(): filesystem error: cannot remove all [YjLu0asVxy]

I saw that I can fix the problem deleting the folder creater after the first execution, using

[~,~]=rmdir([’+’,M_.fname],‘s’),

where fname is the name of matlab file after preprocessing.

Is there a better way to fix the problem?

Thank you

2

Unfortunately, no. Dynare will try to delete that folder itself, but sometimes this operation is blocked. On my machine that happens particularly if the folder is synchronized by a cloud drive.

1 Like
3

Thank you for your response. Let me add. After the rmdir, add the line
clear M_;
To avoid the warning “The value of local variables may have been changed to match the globals.”

4

Given your use of

there seems to be a more fundamental issue here in your use of global variables.

5

It doesn’t look like. Before the eval, I create the local variable M_.fname = 'modfile'. Dynare then creates a file driver.m in which M_ is created again as global. At this point, it generated the warning. When I added the clear M_ before running dynare, the warning disappeared.

6

It’s fine as long as you know what you are doing. Global variables have a lot of potential for mistakes.