我按照Business Objects管理员指南的说明生成自我证书 . 我正在尝试生成证书并执行以下命令，这导致错误 unable to write 'random state' .
C:\Program Files (x86)\SAP BusinessObjects\SAP BusinessObjects Enterprise XI 4.0
\win64_x64>sslc req -config sslc.cnf -new -out cacert.req
Using configuration from sslc.cnf
Loading 'screen' into random state -Generating a 1024 bit RSA private key
.....+++++
......+++++
unable to write 'random state'
writing new private key to 'privkey.pem'
unable to write file: privkey.pem
8712:error:02001005:system library:fopen:bad asn1 object header:bss_file.c:413:f
open('privkey.pem','wb')
8712:error:2006E802:BIO routines:func(110) :system lib:bss_file.c:418:
为什么我不能写随机状态，为什么我不能写私钥？问题是什么？