Setup react native environment смотреть онлайн

In this tutorial i want to show you how to setup environment for react native cross platform mobile apps.
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If you run into issues installing the Expo Cli there are a few things you can try.

Windows
You should not need to run any commands in an elevated admin terminal. First thing you might try is to use the GitBash terminal rather than the Windows Command Prompt or Powershell.

Next, make sure that your project files are on the C drive rather than on some external or remote drive. This may be causing permissions errors or inconsistencies with the install.

If you continue to have issues, delete your package-lock.json file, node_modules directory and run npm cache clean -f. Then run a new npm install as a regular user. Afterwards, run an npm start again to install the Expo Cli tools.

macOS
You may have run into an endless loop where the terminal prompt keeps asking you to install the global cli tools. If this is the case, you'll need to install the tools manually.

npm install expo-cli --global

If this command fails due to permissions errors, please refer to the npm docs on avoiding the use of sudo:

https://docs.npmjs.com/resolving-eacces-permissions-errors-when-installing-packages-globally

Make sure you do not miss step #4 where you add the new npm directory to your $PATH.
After completing these steps, you should now be able to run npm install expo-cli --global
Then attempt to run an npm start again - you should not get prompted to install the tools this time and the Metro Bundler should start up.