Flutter新手技术问询：如何将Flutter 3.0.2升级至3.0.3及Flutter文档升级至3.0.3的方法

Hey there! Since you're new to Flutter, I'll break this down step by step so it's easy to follow—let's get your SDK and docs updated to 3.0.3.

First, let's confirm your starting point to avoid any confusion:

• Open your terminal or command prompt, then run this command to check your current Flutter version:

  flutter --version
  

  You should see output that explicitly lists Flutter 3.0.2—if not, double-check your setup before proceeding.

Next, pick the method that works best for you to upgrade to 3.0.3:

Option 1: Switch directly to version 3.0.3 #

If you want to target exactly 3.0.3 (not the latest stable release, in case a newer version exists), run this command:

flutter version 3.0.3

This will download the 3.0.3 SDK files (if you don't already have them cached) and set it as your active Flutter version.

Option 2: Upgrade to the latest stable release (if 3.0.3 is the current stable) #

If 3.0.3 is the most recent stable Flutter version, you can use the standard upgrade command to pull it:

flutter upgrade

This command will also update your Flutter dependencies and ensure your environment is synced with the latest stable build.

Verify the upgrade #

Once the process finishes, re-run flutter --version to confirm you're now on 3.0.3. Then run:

flutter doctor

This will check for any missing dependencies or configuration issues that might pop up after the upgrade—fix any warnings it flags to keep your setup healthy.

Flutter's docs are tightly linked to its SDK versions, so updating them is pretty straightforward:

• Local/offline documentation: If you use the local docs (opened via the flutter docs command), they'll automatically update when you upgrade your SDK to 3.0.3. Just run flutter docs in your terminal, and it'll launch the 3.0.3-specific docs in your default browser.

• Online documentation: For web-based docs, you don't need to install anything. When you visit the Flutter docs, look for the version selector (usually in the top-right corner of the page) and select "3.0.3" from the dropdown. This will load all docs tailored to that SDK version.

• If you're seeing outdated docs in your browser, clear your cache and reload the page to ensure you're viewing the 3.0.3 content.

内容的提问来源于stack exchange，提问作者Adam gh