function 53_filetype_changed[4]..remote#define#CommandBootstrap[1]..remote#host#Require[10]..provider#pythonx#Require[12]..provider#Poll, line 6 Vim(let):E475: Invalid value for argument cmd: '' is not executable Error detected while processing function 53_filetype_changed[4]..remote#define#CommandBootstrap[1]..remote#host#Require[10]..provider#pythonx#Require[12]..provider#Poll: line 17: E605: Exception not caught: Failed to load python3 host. You can try to see what happened by starting nvim with $NVIM_PYTHON_LOG_FILE set and opening the generated log file. Also, the host stderr is available in messages. Error detected while processing function 53_filetype_changed[4]..remote#define#CommandBootstrap[1]..remote#host#Require: line 10: E171: Missing :endif Error detected while processing function 53_filetype_changed: line 4: E171: Missing :endif