Hey there, let's work through this "Package file doesn't exist" issue you're hitting—even after adjusting API and Android versions, it sounds like there's a deeper dependency or build configuration problem at play, especially with the Apache HttpClient code you're using. Here are targeted fixes to try:

1. Fix Apache HttpClient Compatibility (Most Likely Culprit) #

Android 6.0 (API 23) removed Apache HttpClient from the default system libraries, which explains why adjusting API versions alone didn't solve it. Here's how to restore it:

For targetSdkVersion ≥23: #

Add this to your app-level build.gradle file inside the android block:

android {
    // ... other existing configurations
    useLibrary 'org.apache.http.legacy'
}

For newer Android versions (API 29+): #

The legacy library might not work reliably—switch to the official Apache HttpClient Android library instead. Add this to your dependencies block:

dependencies {
    // ... other dependencies
    implementation 'org.apache.httpcomponents:httpclient-android:4.3.5.1'
}

Also, update your HttpClient initialization code (since DefaultHttpClient is deprecated):

// Replace old DefaultHttpClient creation with this
HttpClient client = HttpClients.createDefault();

2. Clean Up Build Cache & Rebuild #

Corrupted build artifacts often cause "package file missing" errors. Do a full clean:

• In Android Studio, go to Build > Clean Project
• Then run Build > Rebuild Project
• If that fails, manually delete the .gradle and build folders in your project root, then sync your project with Gradle again.

3. Verify Build & Manifest Configurations #

• Double-check your AndroidManifest.xml includes the internet permission (required for your HTTP calls):

  <uses-permission android:name="android.permission.INTERNET" />
  

• Ensure your build.gradle's compileSdkVersion and targetSdkVersion match SDKs you have installed in Android Studio (check Tools > SDK Manager to confirm).

4. Fix ProGuard/R8 Obfuscation (If Enabled) #

If you're using code obfuscation, it might be stripping Apache HttpClient classes. Add these rules to your proguard-rules.pro file:

-keep class org.apache.http.** { *; }
-keep interface org.apache.http.** { *; }

If none of these steps resolve the issue, could you share the full error log, your complete build.gradle config, and the rest of your VideoList.java code? That will help pinpoint exactly where the package file is missing.

内容的提问来源于stack exchange，提问作者ismail