I also encountered your problem. The reason I deleted node_modules is that the code introduction prompt does not always exist after I install another module, but it can be found in the node_modules folder, so I deleted the entire node_modules folder and then reinstalled it, and there is a problem in your topic, although some people on stackoverflow have encountered this kind of error prompt. However, it is not caused by deleting node_modules at all (the project can be run before deleting node_module)
my solution is to use npm install to install instead of cnpm install,. After installation, the run-android interface may appear black screen. Turn off and run run-android again