Ok, I found it:
On the OSX platform, if you manually delete the ~ / .android directory using rm -rf ~ / .android, try to run the emulator, it will work. This is because the emulator does not create a new .android directory before trying to create a child directory SDK1.0. To work around this problem, manually create a new .android directory using mkdir ~ / .android, then run the emulator. The emulator creates the SDK1.0 directory and starts normally.
And I had to recreate the AVD, that's all.
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