git

Submodule initialization failure

fatal: No url found for submodule path|Submodule.*registered for path.*not found

Fixes

1.Initialize submodules: `git submodule init && git submodule update --recursive`
2.Re-clone with submodules: `git clone --recurse-submodules <url>`
3.If URL changed, update .gitmodules then run `git submodule sync && git submodule update --init`

submodulesinitclone

CONFLICT \(content\): Merge conflict in (.+)

•Open conflicted files, resolve the <<<<<<< / ======= / >>>>>>> markers, then `git add` and `git commit`
•Use a merge tool: `git mergetool` (configure with `git config merge.tool <tool>`)

You are in 'detached HEAD' state

•Create a branch to keep your work: `git checkout -b my-branch`
•Return to a branch: `git checkout main` (commits in detached HEAD may be lost without a branch)

\! \[rejected\].*\(fetch first\)|failed to push some refs.*Updates were rejected