如何摆脱构建 Chromium 时的 gn gen 错误？

问：

我试图找到这个特定错误的原因，但我真的不明白如何摆脱它。

k@k-virtual-machine:~/Documents/code/chromium/src$ gn gen out/Default
ERROR at //chrome/version.gni:114:11: Script returned non-zero exit code.
_result = exec_script("//build/util/version.py",
          ^----------
Current dir: /home/k/Documents/code/chromium/src/out/Default/
Command:python3 /home/k/Documents/code/chromium/src/build/util/version.py -f ../../chrome/VERSION -t full = "@MAJOR@.@MINOR@.@BUILD@.@PATCH@" major = "@MAJOR@" minor = "@MINOR@" build = "@BUILD@" patch = "@PATCH@"  --os linux
Returned 1.
stderr:
Traceback (most recent call last):
  File "/home/k/Documents/code/chromium/src/build/util/version.py", line 267, in <module>
    sys.exit(main())
  File "/home/k/Documents/code/chromium/src/build/util/version.py", line 256, in main
    output = BuildOutput(sys.argv[1:])
  File "/home/k/Documents/code/chromium/src/build/util/version.py", line 248, in BuildOutput
    values = GenerateValues(options, evals)
  File "/home/k/Documents/code/chromium/src/build/util/version.py", line 198, in GenerateValues
    values = FetchValues(options.file, options.official)
  File "/home/k/Documents/code/chromium/src/build/util/version.py", line 62, in FetchValues
    FetchValuesFromFile(lastchange_values, lastchange_filename)
  File "/home/k/Documents/code/chromium/src/build/util/version.py", line 29, in FetchValuesFromFile
    with open(file_name, 'r') as f:
FileNotFoundError: [Errno 2] No such file or directory: '/home/k/Documents/code/chromium/src/build/util/LASTCHANGE'

See //ui/gl/features.gni:8:1: whence it was imported.
import("//chrome/version.gni")
^----------------------------

See //BUILD.gn:35:1: whence it was imported.
import("//ui/gl/features.gni")
^----------------------------**