I tried to create a theia debug plugin by following the instructions here: https://che.eclipse.org/how-to-add-support-for-a-new-debugger-for-che-theia-f459ea806ff

When I compile the code, I could see some compilation errors:

$ yarn yarn install v1.7.0 warning package.json: License should be a valid SPDX license expression warning [email protected]: License should be a valid SPDX license expression [1/5] Validating package.json... warning [email protected]: The engine "theiaPlugin" appears to be invalid. [2/5] Resolving packages... success Already up-to-date. $ yarn run clean && yarn run build yarn run v1.7.0 warning package.json: License should be a valid SPDX license expression $ rimraf lib Done in 0.50s. yarn run v1.7.0 warning package.json: License should be a valid SPDX license expression $ yarn run format-code && yarn run compile && theia-plugin pack warning package.json: License should be a valid SPDX license expression $ tsfmt -r warning package.json: License should be a valid SPDX license expression $ tsc node_modules/@theia/plugin/src/theia.d.ts:8157:19 - error TS2304: Cannot find name 'Comment'. 8157 comments: Comment[]; node_modules/@theia/plugin/src/theia.d.ts:8312:80 - error TS2304: Cannot find name 'Comment'. 8312 createCommentThread(id: string, resource: Uri, range: Range, comments: Comment[]): CommentThread; error Command failed with exit code 2. info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command. error Command failed with exit code 1. info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command. error Command failed with exit code 1. info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.