got error when starting the webui

[W 220404 15:02:18 run:413] phantomjs not found, continue running without it. [I 220404 15:02:20 result_worker:49] result_worker starting... [I 220404 15:02:20 processor:211] processor starting... [I 220404 15:02:20 tornado_fetcher:638] fetcher starting... [I 220404 15:02:20 scheduler:647] scheduler starting... [I 220404 15:02:20 scheduler:782] scheduler.xmlrpc listening on 127.0.0.1:23333 [I 220404 15:02:20 scheduler:586] in 5m: new:0,success:0,retry:0,failed:0 [I 220404 15:02:20 app:84] webui exiting... Traceback (most recent call last): File "/usr/local/Caskroom/miniconda/base/envs/web/bin/pyspider", line 8, in sys.exit(main()) File "/usr/local/Caskroom/miniconda/base/envs/web/lib/python3.6/site-packages/pyspider/run.py", line 754, in main cli() File "/usr/local/Caskroom/miniconda/base/envs/web/lib/python3.6/site-packages/click/core.py", line 1128, in call return self.main(*args, **kwargs) File "/usr/local/Caskroom/miniconda/base/envs/web/lib/python3.6/site-packages/click/core.py", line 1053, in main rv = self.invoke(ctx) File "/usr/local/Caskroom/miniconda/base/envs/web/lib/python3.6/site-packages/click/core.py", line 1637, in invoke super().invoke(ctx) File "/usr/local/Caskroom/miniconda/base/envs/web/lib/python3.6/site-packages/click/core.py", line 1395, in invoke return ctx.invoke(self.callback, **ctx.params) File "/usr/local/Caskroom/miniconda/base/envs/web/lib/python3.6/site-packages/click/core.py", line 754, in invoke return __callback(*args, **kwargs) File "/usr/local/Caskroom/miniconda/base/envs/web/lib/python3.6/site-packages/click/decorators.py", line 26, in new_func return f(get_current_context(), *args, **kwargs) File "/usr/local/Caskroom/miniconda/base/envs/web/lib/python3.6/site-packages/pyspider/run.py", line 165, in cli ctx.invoke(all) File "/usr/local/Caskroom/miniconda/base/envs/web/lib/python3.6/site-packages/click/core.py", line 754, in invoke return __callback(*args, **kwargs) File "/usr/local/Caskroom/miniconda/base/envs/web/lib/python3.6/site-packages/click/decorators.py", line 26, in new_func return f(get_current_context(), *args, **kwargs) File "/usr/local/Caskroom/miniconda/base/envs/web/lib/python3.6/site-packages/pyspider/run.py", line 497, in all ctx.invoke(webui, **webui_config) File "/usr/local/Caskroom/miniconda/base/envs/web/lib/python3.6/site-packages/click/core.py", line 754, in invoke return __callback(*args, **kwargs) File "/usr/local/Caskroom/miniconda/base/envs/web/lib/python3.6/site-packages/click/decorators.py", line 26, in new_func return f(get_current_context(), *args, **kwargs) File "/usr/local/Caskroom/miniconda/base/envs/web/lib/python3.6/site-packages/pyspider/run.py", line 384, in webui app.run(host=host, port=port) File "/usr/local/Caskroom/miniconda/base/envs/web/lib/python3.6/site-packages/pyspider/webui/app.py", line 59, in run from .webdav import dav_app File "/usr/local/Caskroom/miniconda/base/envs/web/lib/python3.6/site-packages/pyspider/webui/webdav.py", line 207, in '/': ScriptProvider(app) TypeError: Can't instantiate abstract class ScriptProvider with abstract methods get_resource_inst