# Otp 2\[56\] + rebar3 release, missing werl.exe? **URL:** \ **Category:** Questions / Help\ **Tags:** rebar3, erlang-otp, win64\ **Created:** [July 15, 2023, 12:54pm UTC](https://erlangforums.com/t/otp-2-56-rebar3-release-missing-werl-exe/2748 "2023-07-15T12:54:02Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![phoeniuxlpr](https://erlangforums.com/letter_avatar_proxy/v4/letter/p/e79b87/32.png) [@phoeniuxlpr](https://erlangforums.com/u/phoeniuxlpr)\ **Post date:** [July 15, 2023, 12:54pm UTC](https://erlangforums.com/t/otp-2-56-rebar3-release-missing-werl-exe/2748/1 "2023-07-15T12:54:02Z")
What is the status of werl.exe with Otp 2[56] on windows64? I could not find werl.exe, but rebar3 is trying to use it in the application.cmd. werl? To be or not to be? $ dir “C:\Program Files\erl-24.0\bin\werl.exe” Volume in drive C is Windows-SSD Volume Serial Number is 18A6-3812 Directory of C:\Program Files\erl-24.0\bin 2021-05-11 22:59 126,464 **werl.exe** 1 File(s) 126,464 bytes … Directory of C:\Program Files\Erlang OTP\erts-14.0.2\bin 2023-07-14 16:28 . 2023-07-14 16:28 … 2023-06-28 23:46 6,468,048 beam.debug.smp.dll 2023-06-28 23:46 4,851,152 beam.smp.dll 2023-06-28 23:44 18,640,896 beam.smp.pdb 2023-06-28 23:46 44,496 ct\_run.exe 2023-06-28 23:46 47,056 dialyzer.exe 2023-06-28 23:46 66,000 epmd.exe 2023-06-28 23:46 138,704 erl.exe 2023-07-14 16:28 115 erl.ini 2023-06-28 23:44 503,808 erl.pdb 2023-06-28 23:46 141,776 erlc.exe 2023-06-28 23:46 183,760 erlexec.dll 2023-06-28 23:44 667,648 erlexec.pdb 2023-06-28 23:46 482,768 erlsrv.exe 2023-06-28 23:46 134,608 erl\_call.exe 2023-06-28 23:46 25,552 erl\_log.exe 2023-06-28 23:47 49,104 escript.exe 2023-06-28 23:47 36,816 heart.exe 2023-06-28 23:47 66,000 inet\_gethost.exe 2023-06-28 23:47 33,744 start\_erl.exe 2023-06-28 23:47 45,520 typer.exe 2023-06-28 23:47 158,672 yielding\_c\_fun.exe 21 File(s) 32,786,243 bytes ---
**Author:** ![paulo-f-oliveira](https://erlangforums.com/user_avatar/erlangforums.com/paulo-f-oliveira/32/1103_2.png) [@paulo-f-oliveira](https://erlangforums.com/u/paulo-f-oliveira)\ **Post date:** [July 15, 2023, 1:40pm UTC](https://erlangforums.com/t/otp-2-56-rebar3-release-missing-werl-exe/2748/2 "2023-07-15T13:40:36Z")
As per the [Erlang/OTP 26.0 release notes](https://www.erlang.org/patches/otp-26.0), “werl.exe has been removed and replaced with a symlink to erl.exe”. `rebar3` will probably need to be patched, but it needs to keep compatibility with OTP 24 and 25, too. ---
**Author:** ![phoeniuxlpr](https://erlangforums.com/letter_avatar_proxy/v4/letter/p/e79b87/32.png) [@phoeniuxlpr](https://erlangforums.com/u/phoeniuxlpr)\ **Post date:** [July 15, 2023, 2:46pm UTC](https://erlangforums.com/t/otp-2-56-rebar3-release-missing-werl-exe/2748/3 "2023-07-15T14:46:16Z")
Thanks! I was trying to fix by changing the script to point to erl.exe instead of were.exe. .cmd console was not working. ---
**Author:** ![williamthome](https://erlangforums.com/user_avatar/erlangforums.com/williamthome/32/471_2.png) [@williamthome](https://erlangforums.com/u/williamthome)\ **Post date:** [March 13, 2025, 4:44pm UTC](https://erlangforums.com/t/otp-2-56-rebar3-release-missing-werl-exe/2748/4 "2025-03-13T16:44:13Z")
Hi, @phoeniuxlpr! I was having this issue and just found your thread. I sent a PR fixing the missing `werl.exe`. It would be nice if you could test the [PR](https://github.com/erlware/relx/pull/949). I also sent a [PR](https://github.com/erlware/relx/pull/950) adding the `foreground` command to Windows. cc @tsloughter ---
**Author:** ![tsloughter](https://erlangforums.com/user_avatar/erlangforums.com/tsloughter/32/418_2.png) [@tsloughter](https://erlangforums.com/u/tsloughter)\ **Post date:** [March 13, 2025, 5:26pm UTC](https://erlangforums.com/t/otp-2-56-rebar3-release-missing-werl-exe/2748/5 "2025-03-13T17:26:16Z")
Thanks! I’ll take a look but can’t easily test so yes, would be great if @phoeniuxlpr can do additional testing 🙂