Kotlin实现Twitter登录遇权限错误，请求技术指导

Hey there, sorry to hear you’ve spent 4 hours stuck on this frustrating Twitter login error—let’s walk through the most likely causes and fixes to get you back on track.

Top Troubleshooting Steps #

• Verify Twitter Developer Portal App Configuration
  This is the #1 spot for this error. Double-check these settings in your Twitter developer project:

  • User Authentication Settings: Ensure you’ve filled this out completely:
    • Set App permissions to at least Read and write (or Read only if login is your only use case)
    • Select the correct Type of App—for Android/Kotlin projects, choose Native app
    • Confirm the Callback URI / Redirect URL matches exactly what’s in your code (case-sensitive, no extra spaces or slashes—e.g., twittersdk:// must be identical in both places)
  • Check your app’s status: Make sure it’s marked as Active in the Project Overview tab (not suspended or in draft mode)

• Confirm API Credentials Match
  It’s easy to copy-paste wrong characters here:

  • Ensure your API_KEY and API_SECRET_KEY (or Client ID/Client Secret for OAuth 2.0) in your Kotlin code match exactly what’s listed in the Keys and tokens section of your Twitter app
  • If you’re using build variables (like BuildConfig.TWITTER_API_KEY), verify your build.gradle is correctly injecting these values without typos
    Example initialization code to cross-check:

  val config = TwitterConfig.Builder(this)
      .twitterAuthConfig(TwitterAuthConfig(BuildConfig.TWITTER_API_KEY, BuildConfig.TWITTER_API_SECRET))
      .debug(true)
      .build()
  Twitter.initialize(config)
  

• Check Package Name & Signature Hashes
  Twitter locks down access by matching your app’s identity:

  • In the Android app settings section of your Twitter project, confirm the package name matches your Kotlin app’s package (e.g., com.yourcompany.yourapp—no spelling mistakes!)
  • Generate and input the correct signature hash for your build type:
    • For debug builds, use this command (default debug keystore password is android):

      keytool -exportcert -alias androiddebugkey -keystore ~/.android/debug.keystore | openssl sha1 -binary | openssl base64
      

    • For release builds, use your production keystore details instead. Paste the generated hash exactly into the Twitter portal—even one wrong character will break authorization.

• Update or Migrate Your Twitter SDK
  If you’re using an older SDK (like the deprecated Fabric SDK), it’s almost certainly the issue—Twitter has sunset Fabric support. Switch to the official Twitter Developer SDK for Android (v2+) which uses OAuth 2.0, and ensure you’re on the latest version to avoid API compatibility gaps.

• Test with Approved Test Users
  If your app is still in Development Mode (the default for new apps), only users added as Test users in the Twitter portal can log in. Add your test account there and try again—regular Twitter accounts will get this error until you submit your app for review and move it to Production Mode.

Start with the first two checks—they’re the most frequent causes of this error. Let me know if any of these steps help you resolve the issue!

内容的提问来源于stack exchange，提问作者Acetech