About the script "Test_F450_Launch.xml" throw failed to tie property

[sethome2]

Hi there!

I am currently working on simulating the F450 aircraft, which is a type of multi-copter drone. I’ve written the following Python code to attempt this simulation:

import jsbsim

jsbsim.FGJSBBase().debug_lvl = 0
fdm = jsbsim.FGFDMExec('./jsbsim')

fdm.load_script('scripts/Test_F450_Launch.xml')
# or 
# fdm.load_model('F450')

while fdm.run():
    pass

The program appears to run normally, but I’m encountering an error message that looks like this:

For the first error, “INCOMPATIBLE CFG FILE,” I suspect it might be due to the F450 CFG label being <fdm_config release="Alpha" version="3.0">, indicating the release is in ALPHA rather than PRODUCTION.

However, I’m quite puzzled by the second error and would greatly appreciate any insights or suggestions you might have. Thank you in advance for your help!

[andgi]

I think it is the version attribute that is wrong: It should be version="2.0" since we don't have a version 3 yet. Cheers, Anders

[sethome2]

Thanks a lot!

In repo, the version attribute in F450 is 3.0, it may be a bug.

Also, the error below still exists after changed version attribute to 2.0.

I am trying to figure out the reason. If any points I found, I will post here.