@ayush-dedhia25 I see a similar query of yours was already answered on StackOverflow and even by a member of a Go Team (@bcmills) and still you have opened an issue here.

Refer: https://stackoverflow.com/a/68728663/5821408

I explicitly mentioned the possibility of filing an issue on the SO answer:

If you can't configure the filesystem to support locking and it isn't practical for you to work within a different filesystem that does, please file an issue at https://golang.org/issue/new, and mention issue #37461 (which is closely related) in the issue description.

So I think it's fine to keep this issue open. Honestly, I think we should probably proceed without file-locking when the go.mod and go.sum files cannot be locked — they're less prone to race conditions than, say, the module cache (which must support file-locking because it is much harder to fix if it becomes corrupted, and is implicitly modified much more frequently).

Locking the go.mod and go.sum files also interferes with certain gopls behaviors (see #50971, #50840). (CC @findleyr, @hyangah)

Now that the go command defaults to -mod=readonly, I wonder if this file-locking has outlived its usefulness. Maybe we should stop using file-locking in the main module (and only use it within the module cache). (CC @matloob)

On the other hand, the locking errors that show up in the gopls tests are probably actual real/write races, and they can probably at least show up as corrupted diagnostics in actual use. 🤔

@bcmills @matloob This issue is marked for 1.19. Should it move to Backlog? Thanks.

Just to add some informarion I had this issue rooted my tablet and now i can lock files.

go version
go1.21.4 android/arm64
echo $TERMUX_VERSION
0.118.0
android version
11

Is there any outlook on fixing this? I can't not run "go mod tidy", "go get -u", "go work use .", etc without getting an an error:
go: RLock go.mod: Function not implemented

Am I correct in the conclusion that even though golang is in the termux repository, and it can be installed, it actually can't be used to develop and run a .go file?

Am I correct in the conclusion that even though golang is in the termux repository, and it can be installed, it actually can't be used to develop and run a .go file?

I have the same problem with termux(

This issue occured also for a colleague in Windows WSL 2 with Ubuntu. Would love to see a solution or at least a work around.

This issue occured also for a colleague in Windows WSL 2 with Ubuntu. Would love to see a solution or at least a work around.

Sometimes its just the user that does not have permissions. After I rooted a device that did not have access to lock files this problem went away

Unfortunately not every device is rootable. A workaround would be nice.

Hey, I am facing the same issue on termux as well. I guess I have found a workaround for my usecase.

• go : go version go1.21.6 android/arm64
• tmux : 0.118.0

Running go mod tidy, go run . or go build . all result in the same issue : go: RLock go.mod: Function not implemented
The path where I run these commands is : /storage/emulated/0/documents/...

// go.mod
module my-module-name

go 1.21.6

I wonder the same question as #48572 (comment) : should we just give up on trying running go with multiple packages on termux or is there a way ?

EDIT: I have found a workaround for my usecase that has some limits

• Usecase : I own and maintain the code, which is a little script relatively simple over which I have total control.
• Workaround : The solution was to force go not to check the mod.go running export GO111MODULE=off on termux before the go execution. That also has made me refactor a bit the code to use only my main package / modifying the $GOPATH value for the other local packages to be foundable by go.
• Limits : The workaround will surely not be sufficient for more complex code that require using not only one package / other usecases where the user doesn't have complete control over the code.

I hope to find something better soon, but posting it here if that would unblock some other users :)