问题
I installed Android Studio 3.0.1 in Windows 10 and it turns out that I can not launch any emulator, as much as you create these emulators, these are not displayed and I get the following error:
I have verified that the ADB is not running and that other processes also listen to port 5037 as other users indicate. The strange thing isadb: CreateFileW 'nul' failed:
回答1:
This problem also appeared on my computer, but after reinstalling the Windows system and Android Studio, the problem is no longer there.
来源：https://stackoverflow.com/questions/48086541/adb-createfilew-null-failed-the-system-cannot-find-the-specified-file