diff --git a/CMakeLists.txt b/CMakeLists.txt
index b1a6a84..e565055 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,13 +1,14 @@
 cmake_minimum_required(VERSION 3.30.5)
 project(conan2_template)
 
-set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD 17)
 
 if ("${CMAKE_BUILD_TYPE}" STREQUAL "Debug")
     include(${CMAKE_CURRENT_SOURCE_DIR}/cmake-build-debug/conan_toolchain.cmake)
-endif ()
-if ("${CMAKE_BUILD_TYPE}" STREQUAL "Release")
+elseif ("${CMAKE_BUILD_TYPE}" STREQUAL "Release")
     include(${CMAKE_CURRENT_SOURCE_DIR}/cmake-build-release/conan_toolchain.cmake)
+elseif ()
+    message(ERROR!!!)
 endif ()
 
 find_package(Boost REQUIRED)
diff --git a/conanfile.txt b/conanfile.txt
index aabe523..6a55361 100644
--- a/conanfile.txt
+++ b/conanfile.txt
@@ -1,9 +1,6 @@
 [requires]
-boost/1.87.0
+boost/1.78.0
 
 [generators]
 CMakeDeps
 CMakeToolchain
-
-[tool_requires]
-b2/5.2.0
diff --git a/src/main.cpp b/src/main.cpp
index af232e3..f9f0df2 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -4,6 +4,7 @@
 #include <boost/version.hpp>
 
 int main() {
+  int x = 10;
   std::cout << "Boost version: " << BOOST_LIB_VERSION << "\n";
 
   return EXIT_SUCCESS;