diff --git a/mace/examples/README.md b/mace/examples/README.md
deleted file mode 100644
index 328833fd5a0bcca9bc779c0e4eab912c95d318e3..0000000000000000000000000000000000000000
--- a/mace/examples/README.md
+++ /dev/null
@@ -1,32 +0,0 @@
-Examples
-=======
-
-* Build the example (e.g., with armeabi-v7a target)
-
-```
-# To enable debug mode build, use '-c dbg' flag.
-# To check the underlying commands executed, use '-s' flag.
-# TO check the failed command, use '--verbose_failures' flag.
-
-bazel build -c opt mace/examples:helloworld \
-   --crosstool_top=//external:android/crosstool \
-   --host_crosstool_top=@bazel_tools//tools/cpp:toolchain \
-   --cpu=arm64-v8a
-```
-
-* To run adb inside docker, the container network should use 'host'
-```
-docker run -it --net=host mace-dev /bin/bash
-```
-
-* Push and run the example
-```
-adb shell "mkdir /data/local/tmp"
-adb push bazel-bin/mace/examples/helloworld /data/local/tmp/
-adb shell /data/local/tmp/helloworld
-```
-
-* Check the logs
-```
-adb logcat | grep native
-```
diff --git a/mace/examples/cli/BUILD b/mace/examples/cli/BUILD
index c2db76bb6bcbbf6ff0d7f8ff0140ffa00c9b85ad..c6f0d32be9139a94df797a61c24775ddfbbfe66f 100644
--- a/mace/examples/cli/BUILD
+++ b/mace/examples/cli/BUILD
@@ -39,12 +39,19 @@ cc_binary(
     ] + if_android([
         "-DMACE_ENABLE_OPENCL",
     ]),
-    linkopts = ["-lm", "-pie", "-fPIE"] + if_openmp_enabled(["-fopenmp"]),
+    linkopts = [
+        "-lm",
+    ] + if_openmp_enabled([
+        "-fopenmp"
+    ]) + if_android([
+        "-ldl",
+        "-pie",
+        "-llog",
+    ]),
     linkstatic = 0,
     deps = [
         "//external:gflags_nothreads",
         "//mace/codegen:generated_mace_engine_factory",
-        "//mace/utils:utils",
         "//mace/codegen:generated_libmace",
     ],
 )
diff --git a/mace/examples/cli/README.md b/mace/examples/cli/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..ba70a7e61dcaef7a550a68262cc872fc333142f5
--- /dev/null
+++ b/mace/examples/cli/README.md
@@ -0,0 +1,23 @@
+Examples
+=======
+
+* Convert model
+
+```
+python tools/converter.py convert --config=/path/to/your/model_deployment_file
+```
+
+* Run example
+```
+python tools/converter.py run --config=/path/to/your/model_deployment_file --example
+```
+
+* Validate result
+```
+python tools/converter.py run --config=/path/to/your/model_deployment_file --example --example
+```
+
+* Check the logs
+```
+adb logcat
+```
diff --git a/mace/utils/tuner.h b/mace/utils/tuner.h
index 2cd0f38206280579fc91cb34d66db7d050da94af..e4007b6694a415e7a058b5f6f33a93a2ba485e8e 100644
--- a/mace/utils/tuner.h
+++ b/mace/utils/tuner.h
@@ -140,6 +140,8 @@ class Tuner {
           param_table_.emplace(key, params);
         }
         ifs.close();
+      } else {
+        LOG(WARNING) << "Read OpenCL tuned parameters file failed.";
       }
     } else {
       LOG(INFO) << "There is no tuned parameters.";
diff --git a/tools/build-standalone-lib.sh b/tools/build-standalone-lib.sh
index 1c487213e2c72736f9c999426a34cb9a2f3fb063..68db7c98a4d565f03e541af59302a30e8d394b19 100755
--- a/tools/build-standalone-lib.sh
+++ b/tools/build-standalone-lib.sh
@@ -12,14 +12,14 @@ mkdir -p $INCLUDE_DIR
 cp mace/public/*.h $INCLUDE_DIR/
 
 # make directories
+rm -rf $LIB_DIR/armeabi-v7a
 mkdir -p $LIB_DIR/armeabi-v7a
-rm -f $LIB_DIR/armeabi-v7a/*
 
+rm -rf $LIB_DIR/arm64-v8a
 mkdir -p $LIB_DIR/arm64-v8a
-rm -f $LIB_DIR/arm64-v8a/*
 
+rm -rf $LIB_DIR/linux-x86-64
 mkdir -p $LIB_DIR/linux-x86-64
-rm -f $LIB_DIR/linux-x86-64/*
 
 # build shared libraries
 echo "build shared lib for armeabi-v7a"
diff --git a/tools/converter.py b/tools/converter.py
index 656fd3640962d1b278a9e9657c5502cf87d05f18..8c0ea3406368a78cc158a1e934147207f1829dc9 100644
--- a/tools/converter.py
+++ b/tools/converter.py
@@ -168,7 +168,6 @@ class YAMLKeyword(object):
     target_socs = 'target_socs'
     model_graph_format = 'model_graph_format'
     model_data_format = 'model_data_format'
-    linkshared = 'linkshared'
     models = 'models'
     platform = 'platform'
     model_file_path = 'model_file_path'
@@ -526,13 +525,6 @@ def get_opencl_parameter_output_path(library_name, target_abi,
             target_soc)
 
 
-def get_shared_library_dir(library_name, abi):
-    return '%s/%s/%s/%s' % (BUILD_OUTPUT_DIR,
-                            library_name,
-                            OUTPUT_LIBRARY_DIR_NAME,
-                            abi)
-
-
 def clear_build_dirs(library_name):
     # make build dir
     if not os.path.exists(BUILD_OUTPUT_DIR):
@@ -751,7 +743,7 @@ def build_model_lib(configs, address_sanitizer):
             address_sanitizer=address_sanitizer
         )
 
-        sh.cp(MODEL_LIB_PATH, model_lib_output_path)
+        sh.cp("-f", MODEL_LIB_PATH, model_lib_output_path)
 
 
 def print_library_summary(configs):