Q: How to solve โ€œERROR Make sure to edit the README.md file before you package or publish your extension.โ€?

A: Edit the README.md-file at the extension root.

Q: How to solve โ€œActivating extension <extention-name> failed: Cannot find module โ€˜<folder>โ€™โ€œ?

A: Make sure that the root VSCode folder is the root folder of the VSCode extension.

Q: How to solve โ€œWARNING: IPC handle โ€œ<folder>/.vscode-test/user-data/1.74.3-main.sockโ€ is longer than 103 chars, try a shorter โ€”user-data-dir Could not delete obsolete instance handle Error: ENOENT: no such file or directory, unlink โ€˜<folder>/.vscode-test/user-data/1.74.3-main.sockโ€™โ€œ?

A: Make the working directory shorter or update runTests in runTest.ts (source) to:

await runTests({ 
  extensionDevelopmentPath, 
  extensionTestsPath,
  launchArgs: ['--user-data-dir', `${os.tmpdir()}`]
});