{"topic":{"id":14136,"title":"记一次奇葩的 ADB bug","slug":"topic","categoryId":4,"createdAt":"2025-01-17 02:06:17.356696","bumpedAt":"2025-01-17 02:06:38.142386","views":136,"postsCount":1,"highestPostNumber":1,"likeCount":0,"closed":false,"pinned":false,"pinnedGlobally":false,"pinnedAt":null,"pinnedUntil":null,"isBanner":false,"excerpt":"哪怕在 Android-Studio 里把 emulator 都删除完了，adb 还是报存在一个 offline 的 emulator-5554，导致 push 的时候都要用 -s 选择设备，很烦人。 $ ADB_TRACE=all adb devices 01-17 09:57:10.910 2482922 2482922 D adb : adb_trace.cpp:198 Android Debug Bridge version 1…","deletedAt":null,"isAnonymous":false,"category":{"id":4,"name":"谈笑风生","slug":"general","color":"25AAE2"},"author":{"id":4668,"username":"IO","name":null,"avatarUrl":"/uploads/image/86/f2/86f267c0aaa73835a999b7cc3a7e7a701605574eda9a2c2a56f5ddbbba64d1a9.avif"},"tags":[]},"posts":[{"id":45501,"postNumber":1,"raw":"哪怕在 Android-Studio 里把 emulator 都删除完了，`adb` 还是报存在一个 offline 的 emulator-5554，导致 push 的时候都要用 `-s` 选择设备，很烦人。\n\n```\n$ ADB_TRACE=all adb devices \n01-17 09:57:10.910 2482922 2482922 D adb : adb_trace.cpp:198 Android Debug Bridge version 1.0.41\n...\n01-17 09:57:10.910 2482922 2482922 D adb : adb_io.cpp:97 readx: fd=3 wanted=22 got=22 656d756c... emulator-5554.of [truncated]\nemulator-5554 offline\n```\n\n网上搜索\nhttps://stackoverflow.com/questions/3152681/android-emulator-5554-offline\n\n我用 ss 看是否有进程占用 5554 端口，然而并没有。\n\n仔细再看 S-O，发现 adb 会检查 5555 端口，而我电脑上碰巧有一个 caddy 监听 5555 端口 :grinning_face_with_sweat: 。\n\nadb 识别设备的机制真奇葩。","cooked":"

哪怕在 Android-Studio 里把 emulator 都删除完了，adb 还是报存在一个 offline 的 emulator-5554，导致 push 的时候都要用 -s 选择设备，很烦人。

$ ADB_TRACE=all adb devices   \n01-17 09:57:10.910 2482922 2482922 D adb     : adb_trace.cpp:198 Android Debug Bridge version 1.0.41\n...\n01-17 09:57:10.910 2482922 2482922 D adb     : adb_io.cpp:97 readx: fd=3 wanted=22 got=22 656d756c... emulator-5554.of [truncated]\nemulator-5554   offline\n

网上搜索

https://stackoverflow.com/questions/3152681/android-emulator-5554-offline

我用 ss 看是否有进程占用 5554 端口，然而并没有。

仔细再看 S-O，发现 adb 会检查 5555 端口，而我电脑上碰巧有一个 caddy 监听 5555 端口 😅 。

adb 识别设备的机制真奇葩。

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