[Fix] Handle 'N/A' version instead of asking to install it, fix #1304

Author: PeterDaveHello

nvm.sh

@@ -2627,6 +2627,10 @@ nvm() {
         return 8
       fi
 
+      if [ "${VERSION}" = 'N/A' ] && [ "$(NVM_VERSION_ONLY=true nvm_remote_version "${PROVIDED_VERSION}")" = 'N/A' ]; then
+        nvm_err "Version '$PROVIDED_VERSION' not found - try \`nvm ls-remote\` to browse available versions."
+        return 3
+      fi
       # This nvm_ensure_version_installed call can be a performance bottleneck
       # on shell startup. Perhaps we can optimize it away or make it faster.
       if ! nvm_ensure_version_installed "${VERSION}"; then