diff --git a/Makefile b/Makefile
index 484c046b8a..03452dad2a 100644
--- a/Makefile
+++ b/Makefile
@@ -109,15 +109,6 @@ dev-install: install-scripts
 dev-install:
 	#$(_INFO) Complete! You may want to add $(BIN_FOLDER) to your PATH environment $(_END)
 
-# Target for setup.py
-# Do not invoke this manually
-.PHONY: pip-install
-pip-install: install-dependencies
-pip-install: build
-pip-install: install-node-modules
-pip-install: install-scripts
-pip-install: update-bash-config
-
 .PHONY: uninstall
 uninstall:
 	-$(PIP_UNINSTALL) -y nni
@@ -173,7 +164,7 @@ install-python-modules:
 .PHONY: dev-install-python-modules
 dev-install-python-modules:
 	#$(_INFO) Installing Python SDK $(_END)
-	sed -ie 's/$(NNI_VERSION_TEMPLATE)/$(NNI_VERSION_VALUE)/' setup.py && $(PIP_INSTALL) $(PIP_MODE) .
+	sed -ie 's/$(NNI_VERSION_TEMPLATE)/$(NNI_VERSION_VALUE)/' setup.py && $(PIP_INSTALL) $(PIP_MODE) -e .
 
 
 .PHONY: install-node-modules
diff --git a/docs/en_US/ExperimentConfig.md b/docs/en_US/ExperimentConfig.md
index 1f3d299dfd..f640a26d08 100644
--- a/docs/en_US/ExperimentConfig.md
+++ b/docs/en_US/ExperimentConfig.md
@@ -152,7 +152,7 @@ machineList:
 * __debug__
   * Description
 
-    NNI will check the version of nniManager process and the version of trialKeeper in remote, pai and kubernetes platform. If you want to disable version check, you could set debug be false.
+    NNI will check the version of nniManager process and the version of trialKeeper in remote, pai and kubernetes platform. If you want to disable version check, you could set debug be true.
 
 * __maxTrialNum__
   * Description
diff --git a/setup.py b/setup.py
index 661eebfea0..94f4dcb3a3 100644
--- a/setup.py
+++ b/setup.py
@@ -21,18 +21,10 @@
 
 import os
 from setuptools import setup, find_packages
-from setuptools.command.install import install
-import subprocess
 
 def read(fname):
     return open(os.path.join(os.path.dirname(__file__), fname), encoding='utf-8').read()
 
-class CustomInstallCommand(install):
-    '''a customized install class in pip module'''
-    def run(self):
-        super().run()
-        subprocess.run(['make', 'pip-install'], check=True)
-
 setup(
     name = 'nni',
     version = '999.0.0-developing',
@@ -66,9 +58,6 @@ def run(self):
         'PythonWebHDFS'
     ],
 
-    cmdclass={
-        'install': CustomInstallCommand
-    },
     entry_points = {
         'console_scripts' : [
             'nnictl = nni_cmd.nnictl:parse_args'
diff --git a/tools/nni_cmd/launcher.py b/tools/nni_cmd/launcher.py
index 0d8f3b8926..b52847c089 100644
--- a/tools/nni_cmd/launcher.py
+++ b/tools/nni_cmd/launcher.py
@@ -271,8 +271,9 @@ def set_experiment(experiment_config, mode, port, config_file_name):
         request_data['tuner'] = experiment_config['tuner']
         if 'assessor' in experiment_config:
             request_data['assessor'] = experiment_config['assessor']
+    #debug mode should disable version check
     if experiment_config.get('debug') is not None:
-        request_data['versionCheck'] = experiment_config.get('debug')
+        request_data['versionCheck'] = not experiment_config.get('debug')
 
     request_data['clusterMetaData'] = []
     if experiment_config['trainingServicePlatform'] == 'local':