title: Android Studio - ADB start server fails, adbkey check fails
body: <p><strong>Problem</strong>: adb start-server fails.</p>
  
  <pre><code>--- adb starting (pid 1414) ---
  adb I 12-05 17:28:30  1414 48453 main.cpp:57] Android Debug Bridge version 1.0.39
  adb I 12-05 17:28:30  1414 48453 main.cpp:57] Version 27.0.0-4455170
  adb I 12-05 17:28:30  1414 48453 main.cpp:57] Installed as /Users/[username]/Library/Android/sdk/platform-tools/adb
  adb I 12-05 17:28:30  1414 48453 main.cpp:57] 
  adb I 12-05 17:28:30  1414 48453 adb_auth_host.cpp:416] 
  adb_auth_init...
  adb I 12-05 17:28:30  1414 48453 adb_auth_host.cpp:174] read_key_file '/Users/[username]/.android/adbkey'...
  adb F 12-05 17:28:30  1414 48466 transport_usb.cpp:37] Check failed: usb_packet_size &lt; 4096ULL (usb_packet_size=5120, 4096ULL=4096) 
  </code></pre>
  
  <p><strong>Catalyst</strong>: Installing platform tools v27.0.0</p>
  
  <p><strong>Solutions Tried</strong>: Restarting Android Studio, Restarting computer, Manually starting ADB via terminal, deleting /Users/[username]/.android/adbkey and adbkey.pub, and reinstalling platform tools</p>
  
  <p>Also I am not using genymotion, just the stock emulator.</p>