启动Jdeveloper时，会弹出错误信息

Unable to create an instance of the Java Virtual Machine
Located at path:
C:/Oracle/Middleware/home_11gR1/jdk160_18/jre/bin/client/jvm.dll

如何处理呢？修改JdevHome下的jdev.conf文件，如我的jdevd的文件就保存在C:/Oracle/Middleware/jdev_11gR1/jdeveloper/jdev/bin中。

修改启动时所需内存大小

orginal:
# MaxPermSize is required to run JDeveloper with Sun Microsystems virtual
# machine (-client and -server). The default value is 64M, which isn't
# enough to run JDeveloper successfully. With the default value, JDeveloper
# will end up running out of memory at some point in time. For technical
# details, see: http://java.sun.com/docs/hotspot/gc5.0/gc_tuning_5.html
#
AddVMOption -XX:MaxPermSize=256M

在此行后添加

AddVMOption -Xmx256M
AddVMOption -Xms128M

重新启动Jdevelop即可。如果有内存不足的提示，修改最小和最大内存大小

ITPub博客

如何处理Jdeveloper 启动时出现的错误-Unable to create an instance

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