Hi there,
I tried newly released 2022.2.1f1 but (clean) builds are now failing in the “Linking build.js (wasm)” phase with an unclear error message.
Library\Bee\artifacts\WebGL\build\debug_WebGL_wasm\build.js: undefined symbol: _ZNSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEC1ERKS5_ (referenced by top-level compiled C/C++ code)
upgraded from 2021.1.7f1, any idea what causes this and how I could fix and/or debug this error message?
Some more info from Editor.log
##### Custom Environment Variables
EM_CONFIG=C:\Program Files\Unity\Hub\Editor\2022.2.1f1\Editor\Data\PlaybackEngines\WebGLSupport\BuildTools\Emscripten\.emscripten
EMSDK_PYTHON=C:\Program Files\Unity\Hub\Editor\2022.2.1f1\Editor\Data\PlaybackEngines\WebGLSupport\BuildTools\Emscripten\python\python.exe
EMCC_SKIP_SANITY_CHECK=1
EM_FROZEN_CACHE=1
EM_WORKAROUND_PYTHON_BUG_34780=1
EM_WORKAROUND_WIN7_BAD_ERRORLEVEL_BUG=1
##### ExitCode
1
##### Output
error: undefined symbol: _ZNSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEC1ERKS5_ (referenced by top-level compiled C/C++ code)
warning: Link with `-s LLD_REPORT_UNDEFINED` to get more information on undefined symbols
warning: To disable errors for undefined symbols use `-s ERROR_ON_UNDEFINED_SYMBOLS=0`
warning: __ZNSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEC1ERKS5_ may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library
Error: Aborting compilation due to previous errors
emcc: error: '"C:/Program Files/Unity/Hub/Editor/2022.2.1f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/Emscripten/node/node.exe" "C:\Program Files\Unity\Hub\Editor\2022.2.1f1\Editor\Data\PlaybackEngines\WebGLSupport\BuildTools\Emscripten\emscripten\src\compiler.js" C:\Users\STEFAN~1\AppData\Local\Temp\tmp4_8xydfj.json' failed (returned 1)
*** Tundra build failed (965.34 seconds - 0:16:05), 346 items updated, 551 evaluated
ExitCode: 3 Duration: 16m:05sDeleting and rebuilding the Library folder did not solve the issue
After some searching in files for this signature, it seems to be caused by a Draco plugin. This plugin might not support the latest Emscripten version?
Submitted an issue on the github page for the Draco plugin, still looking for advice on how to build.
got same issue on 22.2.4f1c1
Library/Bee/artifacts/WebGL/build/debug_WebGL_wasm/build.js: undefined symbol: ZNSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEC1ERKS5 (referenced by top-level compiled C/C++ code)
