# Yarn kbn bootstrap fails， A few "Permission denied" errors occurred！ **URL:** \ **Category:** Kibana\ **Created:** [September 20, 2024, 9:16am UTC](https://discuss.elastic.co/t/yarn-kbn-bootstrap-fails-a-few-permission-denied-errors-occurred/366866 "2024-09-20T09:16:12Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![hash-yang](https://avatars.discourse-cdn.com/v4/letter/h/dec6dc/32.png) [@hash-yang](https://discuss.elastic.co/u/hash-yang)\ **Post date:** [September 20, 2024, 9:16am UTC](https://discuss.elastic.co/t/yarn-kbn-bootstrap-fails-a-few-permission-denied-errors-occurred/366866/1 "2024-09-20T09:16:12Z")
hi, i fork the kibana respository and pull it from GitHub,and then try to build kibana on windows10 with WSL2. I referred to the document : [Kibana Guide](https://www.elastic.co/guide/en/kibana/8.15/development-getting-started.html#developing-on-windows).(8.15). My environment： Linux WIN-20230627BHI 5.15.153.1-microsoft-standard-WSL2 ![图片](https://us1.discourse-cdn.com/elastic/original/3X/d/0/d0957a67369120a3a4a817bc8cbac2be905c6715.png) I build it with root, and the error details are as follows: ```auto root@WIN-20230627BHI:/home/hash-yang/kibana# yarn kbn bootstrap --allow-root yarn run v1.22.22 $ node scripts/kbn bootstrap --allow-root [bazel] INFO: Invocation ID: 619a06ec-ed8d-49c7-87c6-856f82e369c0 [bazel] INFO: Analyzed 3 targets (1 packages loaded, 7 targets configured). [bazel] INFO: Found 3 targets... [bazel] ERROR: /home/hash-yang/kibana/packages/kbn-esql-ast/BUILD.bazel:27:11: Copying file failed: (Exit 1): bash failed: error executing command /bin/bash -c 'cp -f "$1" "$2"' '' packages/kbn-esql-ast/src/ast/helpers.ts bazel-out/k8-fastbuild/bin/packages/kbn-esql-ast/src/ast/helpers.ts [bazel] [bazel] Use --sandbox_debug to see verbose messages from the sandbox [bazel] cp: cannot stat 'packages/kbn-esql-ast/src/ast/helpers.ts': Permission denied [bazel] ERROR: /home/hash-yang/kibana/packages/kbn-i18n/BUILD.bazel:32:11: Copying file failed: (Exit 1): bash failed: error executing command /bin/bash -c 'cp -f "$1" "$2"' '' packages/kbn-i18n/package.json bazel-out/k8-fastbuild/bin/packages/kbn-i18n/package.json [bazel] [bazel] Use --sandbox_debug to see verbose messages from the sandbox [bazel] cp: cannot stat 'packages/kbn-i18n/package.json': Permission denied [bazel] ERROR: /home/hash-yang/kibana/packages/kbn-esql-ast/BUILD.bazel:27:11: Copying file failed: (Exit 1): bash failed: error executing command /bin/bash -c 'cp -f "$1" "$2"' '' packages/kbn-esql-ast/src/types.ts bazel-out/k8-fastbuild/bin/packages/kbn-esql-ast/src/types.ts [bazel] [bazel] Use --sandbox_debug to see verbose messages from the sandbox [bazel] cp: cannot stat 'packages/kbn-esql-ast/src/types.ts': Permission denied [bazel] ERROR: /home/hash-yang/kibana/packages/kbn-esql-ast/BUILD.bazel:27:11: Copying file failed: (Exit 1): bash failed: error executing command /bin/bash -c 'cp -f "$1" "$2"' '' packages/kbn-esql-ast/src/ast_factory.ts bazel-out/k8-fastbuild/bin/packages/kbn-esql-ast/src/ast_factory.ts [bazel] [bazel] Use --sandbox_debug to see verbose messages from the sandbox [bazel] cp: cannot stat 'packages/kbn-esql-ast/src/ast_factory.ts': Permission denied [bazel] ERROR: /home/hash-yang/kibana/packages/kbn-esql-ast/BUILD.bazel:27:11: Copying file failed: (Exit 1): bash failed: error executing command /bin/bash -c 'cp -f "$1" "$2"' '' packages/kbn-esql-ast/src/ast/constants.ts bazel-out/k8-fastbuild/bin/packages/kbn-esql-ast/src/ast/constants.ts [bazel] [bazel] Use --sandbox_debug to see verbose messages from the sandbox [bazel] cp: cannot stat 'packages/kbn-esql-ast/src/ast/constants.ts': Permission denied [bazel] ERROR: /home/hash-yang/kibana/packages/kbn-esql-validation-autocomplete/BUILD.bazel:28:11: Copying file failed: (Exit 1): bash failed: error executing command /bin/bash -c 'cp -f "$1" "$2"' '' packages/kbn-esql-validation-autocomplete/package.json bazel-out/k8-fastbuild/bin/packages/kbn-esql-validation-autocomplete/package.json [bazel] [bazel] Use --sandbox_debug to see verbose messages from the sandbox [bazel] cp: cannot stat 'packages/kbn-esql-validation-autocomplete/package.json': Permission denied [bazel] ERROR: /home/hash-yang/kibana/packages/kbn-esql-ast/BUILD.bazel:27:11: Copying file failed: (Exit 1): bash failed: error executing command /bin/bash -c 'cp -f "$1" "$2"' '' packages/kbn-esql-ast/src/visitor/types.ts bazel-out/k8-fastbuild/bin/packages/kbn-esql-ast/src/visitor/types.ts [bazel] [bazel] Use --sandbox_debug to see verbose messages from the sandbox [bazel] cp: cannot stat 'packages/kbn-esql-ast/src/visitor/types.ts': Permission denied [bazel] INFO: Elapsed time: 5.006s, Critical Path: 0.27s [bazel] INFO: 8 processes: 8 internal. [bazel] HINT HINT If experiencing problems with node_modules try `yarn kbn bootstrap --force-install` or as last resort `yarn kbn reset && yarn kbn bootstrap` HINT ERROR [bootstrap] failed: [bazel] exited with code [1] error Command failed with exit code 1. info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command. ``` it seems that all the errors are occurred in 'packages' directory. I tried to change all the files and directories mode to 777, but it doesn't work. ---
**Author:** ![hash-yang](https://avatars.discourse-cdn.com/v4/letter/h/dec6dc/32.png) [@hash-yang](https://discuss.elastic.co/u/hash-yang)\ **Post date:** [October 23, 2024, 1:52pm UTC](https://discuss.elastic.co/t/yarn-kbn-bootstrap-fails-a-few-permission-denied-errors-occurred/366866/2 "2024-10-23T13:52:45Z")
It was resolved a few days ago. Please do not use the Root role for building; instead, follow the guidelines and use a regular role for this task. ---
**Author:** ![jessgarson](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jessgarson/32/129841_2.png) [@jessgarson](https://discuss.elastic.co/u/jessgarson)\ **Post date:** [October 23, 2024, 9:53pm UTC](https://discuss.elastic.co/t/yarn-kbn-bootstrap-fails-a-few-permission-denied-errors-occurred/366866/3 "2024-10-23T21:53:15Z")
Thanks for sharing your solution, @hash-yang.