尝试使用portmaster更新我的所有端口/已安装端口时。我在尝试将uhidd-0.2.0_1更新为uhidd-0.2.0_2时收到错误代码1。以下是我收到的错误，如何提供内核源文件？
portmaster -a
===>>> Gathering distinfo list for installed ports
===>>> Starting check of installed ports for available updates
===>>> Launching child to update dd_rescue-1.24 to dd_rescue-1.25
===>>> Port directory: /usr/ports/sysutils/dd_rescue
===>>> Launching 'make checksum' for sysutils/dd_rescue in background
===>>> Gathering dependency list for sysutils/dd_rescue from ports
===>>> No dependencies for sysutils/dd_rescue
===>>> Returning to update check of installed ports
===>>> Launching child to update pciutils-3.1.7 to pciutils-3.1.9
===>>> Port directory: /usr/ports/sysutils/pciutils
===>>> Launching 'make checksum' for sysutils/pciutils in background
===>>> Gathering dependency list for sysutils/pciutils from ports
===>>> Initial dependency check complete for sysutils/pciutils
===>>> Returning to update check of installed ports
===>>> Launching child to update uhidd-0.2.0_1 to uhidd-0.2.0_2
===>>> Port directory: /usr/ports/sysutils/uhidd
===>>> This port is marked IGNORE
===>>> requires kernel source files
===>>> If you are sure you can build it, remove the
IGNORE line in the Makefile and try again.
===>>> Update for uhidd-0.2.0_1 failed
===>>> Aborting update
Terminated