lockfiles with --base do not provide build-order (#7551)

conans/client/conan_api.py

@@ -1287,6 +1287,10 @@ def lock_build_order(self, lockfile, cwd=None):
         lockfile = _make_abs_path(lockfile, cwd)
 
         graph_lock_file = GraphLockFile.load(lockfile, self.app.cache.config.revisions_enabled)
+        if graph_lock_file.profile_host is None:
+            raise ConanException("Lockfiles with --base do not contain profile information, "
+                                 "cannot be used. Create a full lockfile")
+
         graph_lock = graph_lock_file.graph_lock
         build_order = graph_lock.build_order()
         return build_order

conans/test/functional/graph_lock/build_order_test.py

@@ -18,6 +18,14 @@ def single_consumer_test(self):
         jsonbo = json.loads(client.load("bo.json"))
         self.assertEqual([], jsonbo)
 
+    def test_base_graph(self):
+        client = TestClient()
+        client.save({"conanfile.py": GenConanfile("test4", "0.1")})
+        client.run("lock create conanfile.py --base --lockfile-out=conan.lock")
+        client.run("lock build-order conan.lock --json=bo.json", assert_error=True)
+        self.assertIn("Lockfiles with --base do not contain profile information, "
+                      "cannot be used. Create a full lockfile", client.out)
+
     @parameterized.expand([(True,), (False,)])
     def build_not_locked_test(self, export):
         # https://github.com/conan-io/conan/issues/5727