esm: fix misleading error when import empty package.json

src/node_file.cc

@@ -3431,10 +3431,11 @@ void BindingData::LegacyMainResolve(const FunctionCallbackInfo<Value>& args) {
     return;
   }
 
-  THROW_ERR_MODULE_NOT_FOUND(isolate,
-                             "Cannot find package '%s' imported from %s",
-                             package_initial_file,
-                             *module_base);
+  THROW_ERR_MODULE_NOT_FOUND(
+      isolate,
+      "No package entry point defined for package %s imported from %s",
+      *utf8_package_json_url,
+      *module_base);
 }
 
 void BindingData::MemoryInfo(MemoryTracker* tracker) const {

test/es-module/test-import-empty.js

@@ -0,0 +1,23 @@
+'use strict';
+
+const { spawnPromisified } = require('../common');
+const fixtures = require('../common/fixtures.js');
+const assert = require('node:assert');
+const { execPath } = require('node:process');
+const { describe, it } = require('node:test');
+
+describe('Import empty module', { concurrency: true }, () => {
+  it(async () => {
+    const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [
+      '--no-warnings',
+      '--eval',
+      'import("empty")',
+    ], {
+      cwd: fixtures.path(),
+    });
+    assert.strictEqual(code, 1);
+    assert.strictEqual(signal, null);
+    assert.strictEqual(stdout, '');
+    assert.match(stderr, /No package entry point defined for package/);
+  });
+});