If you faced with: ERROR! Unexpected Exception: Odd-length string

It may be caused by the wrong line feeds in some files of your project.

They should be LF, not CRLF. To check change dir to your project root and do: 

find . -type f -exec file {} \;

If you have some line with ASCII text, with CRLF line terminators this it the reason! Normal files should have only ASCII text (this means LF) in output, example: 

./file1: ASCII text 
./file2.yml: ASCII text ...

Solving

You can use dos2unix to convert (can be installed with apt-get if you run Ubuntu or WSL 2 on Windows): 

find . -type f -exec dos2unix {} \;
#ansible