[adithya123]

I downloaded the required C++ and python compilers for SU2.I wanted to do AD build but the following error arises:
Downloading CoDiPack '9ca6c38280610b3ea5337ca3e5b5085ee1c66b59'
Traceback (most recent call last):
File "./meson.py", line 39, in <module>
preconfigure.run(own_meson=False)
File "/home/adithya-b-nair/Desktop/SU2/preconfigure.py", line 97, in run
own_mlpcpp=own_mlpcpp,
File "/home/adithya-b-nair/Desktop/SU2/meson_scripts/init.py", line 132, in init_submodules
codi_name, alt_name_codi, github_repo_codi, sha_version_codi
File "/home/adithya-b-nair/Desktop/SU2/meson_scripts/init.py", line 299, in download_module
zipf = MyZipFile(filepath)
File "/home/adithya-b-nair/anaconda3/lib/python3.7/zipfile.py", line 1258, in __init__
self._RealGetContents()
File "/home/adithya-b-nair/anaconda3/lib/python3.7/zipfile.py", line 1325, in _RealGetContents
raise BadZipFile("File is not a zip file")
zipfile.BadZipFile: File is not a zip file
How to fix this error ?

[bigfootedrockmidget]

It looks like the download of the package did not succeed for some reason.
Maybe the best is to create a new clone and try again:

git clone https://github.com/su2code/su2.git
./meson.py build --optimization=2 -Ddebug=false -Denable-pywrapper=true -Denable-tests=false -Denable-autodif
f=true -Dwith-mpi=enabled -Denable-cgns=true -Denable-tecio=false --prefix=/home/adithya-b-nair/Desktop/SU2/