出现此错误，请帮助我解决此问题。
rudra @ rudra-ThinkPad-E470：〜/ Android / SDK / emulator $仿真器-avd自定义-详细-show-kernel -system $ OUT / system.img -ramdisk $ OUT / ramdisk.img -initdata $ OUT / userdata.img
模拟器：Android模拟器26.0.3.0版（build_id 3965150）
模拟器：找到AVD名称“ custom”
模拟器：找到的AVD目标体系结构：x86
emulator：argv [0]：'模拟器';程序目录：'/ home / rudra / Android / Sdk / tools'
模拟器：找到的目录：/ home / rudra / Android / Sdk / system-images / android-25 / google_apis / x86 /
emulator:Probing for /home/rudra/Android/Sdk/system-images/android-25/google_apis/x86//kernel-ranchu: file exists
emulator:Auto-config: -engine qemu2 (based on configuration)
emulator: Found directory: /home/rudra/Android/Sdk/system-images/android-25/google_apis/x86/
emulator:try dir /home/rudra/Android/Sdk/tools
emulator:try dir .
emulator:Found target-specific 64-bit emulator binary: /home/rudra/Android/Sdk/emulator/./qemu/linux-x86_64/qemu-system-i386
emulator:Adding library search path: './lib64'
emulator:Adding library search path: './lib64/gles_swiftshader'
emulator:Adding library search path: './lib64/gles_angle'
emulator:Adding library search path: './lib64/gles_angle9'
emulator:Adding library search path: './lib64/gles_angle11'
emulator:Adding library search path: './lib64/libstdc++'
emulator: Adding library search path for Qt: './lib64/qt/lib'
emulator: Setting Qt plugin search path: QT_QPA_PLATFORM_PLUGIN_PATH=./lib64/qt/plugins
emulator: Running :/home/rudra/Android/Sdk/emulator/./qemu/linux-x86_64/qemu-system-i386
emulator: qemu backend: argv[00] = "/home/rudra/Android/Sdk/emulator/./qemu/linux-x86_64/qemu-system-i386"
emulator: qemu backend: argv[01] = "-avd"
emulator: qemu backend: argv[02] = "custom"
emulator: qemu backend: argv[03] = "-verbose"
emulator: qemu backend: argv[04] = "-show-kernel"
emulator: qemu backend: argv[05] = "-system"
emulator: qemu backend: argv[06] = "/system.img"
emulator: qemu backend: argv[07] = "-ramdisk"
emulator: qemu backend: argv[08] = "/ramdisk.img"
emulator: qemu backend: argv[09] = "-initdata"
emulator: qemu backend: argv[10] = "/userdata.img"
emulator: Concatenated backend parameters:
/home/rudra/Android/Sdk/emulator/./qemu/linux-x86_64/qemu-system-i386 -avd custom -verbose -show-kernel -system /system.img -ramdisk /ramdisk.img -initdata /userdata.img
emulator: Android virtual device file at: /home/rudra/.android/avd/custom.ini
emulator: virtual device content at /home/rudra/.android/avd/custom.avd
emulator: virtual device config file: /home/rudra/.android/avd/custom.avd/config.ini
emulator: using core hw config path: /home/rudra/.android/avd/custom.avd/hardware-qemu.ini
emulator: using snapshot lock path: /home/rudra/.android/avd/custom.avd/snapshot.lock
emulator: using multi-instance lock path: /home/rudra/.android/avd/custom.avd/multiinstance.lock
emulator: Found AVD target API level: 25
emulator: Read property file at /home/rudra/Android/Sdk/system-images/android-25/google_apis/x86//build.prop
emulator: No boot.prop property file found.
emulator: found skin 'nexus_s' in directory: /home/rudra/Android/Sdk/skins/
emulator: autoconfig: -skin nexus_s
emulator: autoconfig: -skindir /home/rudra/Android/Sdk/skins/
emulator: autoconfig: -kernel /home/rudra/Android/Sdk/system-images/android-25/google_apis/x86//kernel-ranchu
emulator: Target arch = 'x86'
emulator: Auto-config: -qemu -cpu qemu32
emulator: Auto-detect: Kernel image requires new device naming scheme.
emulator: Auto-detect: Kernel does not support YAFFS2 partitions.
emulator: ERROR: System image file doesn't exist: /system.img