Upgrade magento2 version manually
Step1: First off, remove contents of the /vendor folder
By this command to your magento2 root
rm -rf vendor/*
Step2: Edit the composer.js file and change the version of magento in line 5:
“version”: “2.1.0”
Step3: After that under require put it
“Require”: {
“Magento/product-community-edition”: “2.0.1”,
Like below snap shot
Step4: Now run composer update then run. By this command
php bin/magento setup: upgrade
Step5: Now finally re-deploy the static files, which for me is this command:
php bin/magento setup:static-content:deploy de_DE en_US
Step6:Run all command
rm -rf var/di var/generation
php bin/magento cache:flush
php bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento indexer:reindex