Intel Edison编译image报错

在ubuntu 14.04 环境下编译image，出现如下错误：
extpoll | -- Up-to-date: /home/chaos/edison/edison-src/build/tmp/work/core2-32-poky-linux/libwebsockets/1.23-r0/image/usr/bin/libwebsockets-test-client | -- Installing: /home/chaos/edison/edison-src/build/tmp/work/core2-32-poky-linux/libwebsockets/1.23-r0/image/usr/bin/libwebsockets-test-fraggle | -- Installing: /home/chaos/edison/edison-src/build/tmp/work/core2-32-poky-linux/libwebsockets/1.23-r0/image/usr/bin/libwebsockets-test-ping | -- Installing: /home/chaos/edison/edison-src/build/tmp/work/core2-32-poky-linux/libwebsockets/1.23-r0/image/usr/bin/libwebsockets-test-echo | -- Installing: /home/chaos/edison/edison-src/build/tmp/work/core2-32-poky-linux/libwebsockets/1.23-r0/image/usr/share/libwebsockets-test-server/favicon.ico | -- Installing: /home/chaos/edison/edison-src/build/tmp/work/core2-32-poky-linux/libwebsockets/1.23-r0/image/usr/share/libwebsockets-test-server/leaf.jpg | -- Installing: /home/chaos/edison/edison-src/build/tmp/work/core2-32-poky-linux/libwebsockets/1.23-r0/image/usr/share/libwebsockets-test-server/libwebsockets.org-logo.png | -- Installing: /home/chaos/edison/edison-src/build/tmp/work/core2-32-poky-linux/libwebsockets/1.23-r0/image/usr/share/libwebsockets-test-server/test.html | CMake Error at cmake_install.cmake:189 (FILE): | file INSTALL cannot find | "/home/chaos/edison/edison-src/build/tmp/work/core2-32-poky-linux/libwebsockets/1.23-r0/build/libwebsockets-test-server.key.pem". | | | make: *** [install] Error 1 | ERROR: oe_runmake failed | WARNING: exit code 1 from a shell command. | ERROR: Func tion failed: do_install (log file is located at /home/chaos/edison/edison-src/build/tmp/work/core2-32-poky-linux/libwebsockets/1.23-r0/temp/log.do_install.19402) ERROR: Task 518 (/home/chaos/edison/edison-src/device-software/meta-edison-distro/recipes-connectivity/libwebsockets/libwebsockets_1.23.bb, do_install) failed with exit code '1' NOTE: Tasks Summary: Attempted 1872 tasks of which 1863 didn't need to be rerun and 1 failed. Waiting for 0 running tasks to finish: Summary: 1 task failed: /home/chaos/edison/edison-src/device-software/meta-edison-distro/recipes-connectivity/libwebsockets/libwebsockets_1.23.bb, do_install Summary: There was 1 ERROR message shown, returning a non-zero exit code. 请问如何解决呢？