error404

Error 404 occurs. Previously, everything worked correctly. I tried different possible variations, used different tomcat, trie ... act is deployed successfully [2020-02-26 02:33:05,758] Artifact TestServlet:war exploded: Deploy took 578 milliseconds

When using virtualenv, it returns the error E:\rrr>virtualenv -v Fatal error in launcher: Unable to create process using ... -m pip uninstall pip > python -m ensurepip > python -m pip install -U "pip<10" It didn't help, tell me how to fix