Installed robotframework-ftplibrary in vs code but library is not detecting and throwing error as module not found.
This could either be to missing dependencies (i.e. robotframework-ftplibrary relying on other packages but not having them as project dependencies) or your IDE is not using the Python environment where the library was installed.
Are you using a virtual environment? Is the library shown in the pip list of the environment you’re using in your IDE?