Eclipse中导入AppCompat v4/v7库遇阻，请求技术支持

Hey there, I totally get how frustrating it is to spend hours troubleshooting this AppCompat issue without luck—let's break this down step by step and get you sorted.

First, let's clear up a key point: AppCompat v7 (especially versions 23+) isn't just a JAR file—it's an Android Library Project that includes resources, themes, and other dependencies that plain JARs can't provide. That's exactly why importing just the appcompat-v7-23.3.0-sources.jar is causing the error you're seeing.

Step 1: Locate the actual appcompat_v7 Library Project #

You mentioned seeing files in C:\sdk-android\extras\android\m2repository\com\android\support\appcompat-v7\23.3.0, but that's the Maven repository version of the library, which Eclipse doesn't use directly. Here's how to get the proper library project:

• Open your Android SDK Manager.
• Under the Extras section, find Android Support Library—make sure it's fully installed. If it's already listed as installed, try uninstalling it and reinstalling to fix any incomplete downloads.
• Once installed, you'll find the appcompat_v7 project at this path:

  C:\sdk-android\extras\android\support\v7\appcompat
  

Step 2: Import the appcompat_v7 project into Eclipse #

• Open Eclipse, go to File > Import > Android > Existing Android Code Into Workspace.
• Browse to the appcompat folder we just found, select it, and click Finish.
• If the imported project shows errors, fix its target SDK first:
  1. Right-click the appcompat_v7 project > Properties > Android.
  2. Set the Target SDK to API 23 (matches your AppCompat version 23.3.0) or a compatible higher version.
  3. Click Apply then OK.

Step 3: Link the library to your project #

• Right-click your own Android project > Properties > Android.
• In the Libraries section, click Add....
• Select the imported appcompat_v7 project from the list, then click OK.
• Save your changes by clicking Apply > OK.

Step 4: Clean and rebuild your projects #

• Go to Project > Clean... in Eclipse.
• Select both your project and the appcompat_v7 project, then click Clean.
• Once the clean finishes, rebuild your project—this should resolve the import error.

Extra Troubleshooting Tips #

• Make sure your own project's target SDK is set to API 23 or higher (match the AppCompat version you're using).
• Do NOT manually copy AppCompat JARs into your project's libs folder—this will cause conflicts with the library project.
• If you still see issues, double-check that all SDK components (including the Android Platform for API 23) are fully updated in SDK Manager.

内容的提问来源于stack exchange，提问作者vLopez