Merge 70afc73fa5457068282529e36549b5b1895c872d into da2720a4292d02746a6b7fdc680c7e163c347355

Co-authored-by: Jordan Harband <ljharb@gmail.com>

nvm.sh

@@ -701,7 +701,7 @@ nvm_ensure_version_installed() {
     fi
     nvm_err ""
     if [ "${PROVIDED_VERSION}" = 'lts' ]; then
-      nvm_err "You need to run \`nvm install --lts\` to install and \`nvm use --lts\` to use it."
+      nvm_err "`lts` is not an alias - you may need to run \`nvm install --lts\` to install and \`nvm use --lts\` to use it."
     elif [ "${IS_VERSION_FROM_NVMRC}" != '1' ]; then
       nvm_err "You need to run \`nvm install ${PROVIDED_VERSION}\` to install and use it."
     else

test/slow/nvm use/Running 'nvm use lts' shows actionable error

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+set -ex
+
+die () { echo "$@" ; exit 1; }
+
+\. ../../../nvm.sh
+
+# Deactivate any active node version
+nvm deactivate >/dev/null 2>&1 || die 'deactivate failed'
+
+# Attempt to use 'lts' without '--' and capture the error message
+ERROR_OUTPUT=$(nvm use lts 2>&1) || true
+
+EXPECTED_ERROR="`lts` is not an alias - you may need to run \`nvm install --lts\` to install and \`nvm use --lts\` to use it."
+
+# Check if the error message matches the expected output
+echo "$ERROR_OUTPUT" | grep -q "$EXPECTED_ERROR" \
+  || die "Expected error message not found. Got: $ERROR_OUTPUT"