# Cannot build rust mediasoup **URL:** \ **Category:** Deployment & Scalability\ **Created:** [December 5, 2021, 6:07am UTC](https://mediasoup.discourse.group/t/cannot-build-rust-mediasoup/3682 "2021-12-05T06:07:30Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![ChosunOne](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/chosunone/32/562_2.png) [@ChosunOne](https://mediasoup.discourse.group/u/ChosunOne)\ **Post date:** [December 5, 2021, 6:07am UTC](https://mediasoup.discourse.group/t/cannot-build-rust-mediasoup/3682/1 "2021-12-05T06:07:30Z")
While trying to build a project using rust mediasoup, I get: ```auto ERROR: Subproject exists but has no meson.build file ``` I cannot seem to get the `cargo build` command to run. I’ve tried deleting the entire target folder and retrying, but it fails 100% of the time. Here is my meson-log.txt file: ```auto Build started at 2021-12-05T15:02:54.205044 Main binary: /usr/bin/python3 Build Options: -Db_pie=true -Db_staticpic=true -Dbuildtype=debug Python system: Linux The Meson build system Version: 0.60.2 Source dir: /home/chosunone/.cargo/registry/src/github.com-1ecc6299db9ec823/mediasoup-sys-0.3.0 Build dir: /home/chosunone/source/sfu-rust/target/debug/build/mediasoup-sys-62bad9506a995114/out/Debug Build type: native build Project name: mediasoup-worker Project version: undefined Sanity testing C compiler: cc Is cross compiler: False. Sanity check compiler command line: cc sanitycheckc.c -o sanitycheckc.exe -D_FILE_OFFSET_BITS=64 Sanity check compile stdout: ----- Sanity check compile stderr: ----- Running test binary command: /home/chosunone/source/sfu-rust/target/debug/build/mediasoup-sys-62bad9506a995114/out/Debug/meson-private/sanitycheckc.exe C compiler for the host machine: cc (gcc 8.4.0 "cc (Ubuntu 8.4.0-3ubuntu2) 8.4.0") C linker for the host machine: cc ld.bfd 2.34 Sanity testing C++ compiler: c++ Is cross compiler: False. Sanity check compiler command line: c++ sanitycheckcpp.cc -o sanitycheckcpp.exe -D_FILE_OFFSET_BITS=64 Sanity check compile stdout: ----- Sanity check compile stderr: ----- Running test binary command: /home/chosunone/source/sfu-rust/target/debug/build/mediasoup-sys-62bad9506a995114/out/Debug/meson-private/sanitycheckcpp.exe C++ compiler for the host machine: c++ (gcc 8.4.0 "c++ (Ubuntu 8.4.0-3ubuntu2) 8.4.0") C++ linker for the host machine: c++ ld.bfd 2.34 Sanity testing C compiler: cc Is cross compiler: False. Sanity check compiler command line: cc sanitycheckc.c -o sanitycheckc.exe -D_FILE_OFFSET_BITS=64 Sanity check compile stdout: ----- Sanity check compile stderr: ----- Running test binary command: /home/chosunone/source/sfu-rust/target/debug/build/mediasoup-sys-62bad9506a995114/out/Debug/meson-private/sanitycheckc.exe C compiler for the build machine: cc (gcc 8.4.0 "cc (Ubuntu 8.4.0-3ubuntu2) 8.4.0") C linker for the build machine: cc ld.bfd 2.34 Sanity testing C++ compiler: c++ Is cross compiler: False. Sanity check compiler command line: c++ sanitycheckcpp.cc -o sanitycheckcpp.exe -D_FILE_OFFSET_BITS=64 Sanity check compile stdout: ----- Sanity check compile stderr: ----- Running test binary command: /home/chosunone/source/sfu-rust/target/debug/build/mediasoup-sys-62bad9506a995114/out/Debug/meson-private/sanitycheckcpp.exe C++ compiler for the build machine: c++ (gcc 8.4.0 "c++ (Ubuntu 8.4.0-3ubuntu2) 8.4.0") C++ linker for the build machine: c++ ld.bfd 2.34 Build machine cpu family: x86_64 Build machine cpu: x86_64 Host machine cpu family: x86_64 Host machine cpu: x86_64 Target machine cpu family: x86_64 Target machine cpu: x86_64 meson.build:147:0: ERROR: Subproject exists but has no meson.build file ``` Please advise ---
**Author:** ![nazar-pc](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/nazar-pc/32/369_2.png) [@nazar-pc](https://mediasoup.discourse.group/u/nazar-pc)\ **Post date:** [December 5, 2021, 6:09am UTC](https://mediasoup.discourse.group/t/cannot-build-rust-mediasoup/3682/2 "2021-12-05T06:09:30Z")
> [@Mediasoup worker default make failed](https://mediasoup.discourse.group/t/mediasoup-worker-default-make-failed/3647/2): > > Apparently something went wrong before and now you have inconsistent state. Try to remove everything from worker/subprojects except packagefiles and \*.wrap files. Would be helpful if you can tell a bit more how you got there though. It works fine on my machine and in CI on 3 major platforms. Please use search on the forum next time. ---
**Author:** ![ChosunOne](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/chosunone/32/562_2.png) [@ChosunOne](https://mediasoup.discourse.group/u/ChosunOne)\ **Post date:** [December 5, 2021, 6:09am UTC](https://mediasoup.discourse.group/t/cannot-build-rust-mediasoup/3682/3 "2021-12-05T06:09:44Z")
I don’t know where to find those directories ---
**Author:** ![nazar-pc](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/nazar-pc/32/369_2.png) [@nazar-pc](https://mediasoup.discourse.group/u/nazar-pc)\ **Post date:** [December 5, 2021, 6:18am UTC](https://mediasoup.discourse.group/t/cannot-build-rust-mediasoup/3682/4 "2021-12-05T06:18:44Z")
I just created a fresh project, added `mediasoup = "0.9.0"` as dependency and it worked fine on Ubuntu 21.04. Deleting `target` directory would have helped for sure. What OS are you on? Also make sure network doesn’t block access to downloading some of the dependencies (like from GitHub). ---
**Author:** ![ChosunOne](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/chosunone/32/562_2.png) [@ChosunOne](https://mediasoup.discourse.group/u/ChosunOne)\ **Post date:** [December 5, 2021, 6:37am UTC](https://mediasoup.discourse.group/t/cannot-build-rust-mediasoup/3682/5 "2021-12-05T06:37:43Z")
I’m on Ubuntu 20.04. It seems that the directories that were causing problems were in my local ~/.cargo cache of mediasoup, not in the target directory of the project itself. I resolved it by deleting mediasoup from the cargo cache. ---
**Author:** ![nazar-pc](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/nazar-pc/32/369_2.png) [@nazar-pc](https://mediasoup.discourse.group/u/nazar-pc)\ **Post date:** [December 5, 2021, 6:50am UTC](https://mediasoup.discourse.group/t/cannot-build-rust-mediasoup/3682/6 "2021-12-05T06:50:19Z")
Interesting and weird. Either way, the other topic linked is still relevant and this issue should generally go away once fixed upstream.