Failed to load resource: the server responded with a status of 500 (Internal Server Error)

[halfmoonvic]

When I open markdown file by OmniMarkupPreviewer, there is some wrong with my google chrome and firefox. In the console, it output some info, "Failed to load resource: the server responded with a status of 500 (Internal Server Error)". Im sure there is no conflict at server_port.

The logs in the console as flowing:

`Package Control: Skipping automatic upgrade, last run at 2016-12-14 13:46:46, next run at 2016-12-14 >14:46:46 or after OmniMarkupPreviewer: [INFO] Launching web browser for http://127.0.0.1:51004/view/31

Critical error while processing request: /public/github.css

AssertionError('WSGI >start_response called a second time with no exc_info.',) Traceback (most recent call last): File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\bottle.py", line 855, in wsgi start_response(response._status_line, response.headerlist) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1906, >in start_response self.req.outheaders.append((k.encode('ISO-8859-1'), v.encode('ISO-8859-1'))) UnicodeEncodeError: 'latin-1' codec can't encode characters in position 0-1: ordinal not in range(256) During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1035, >in communicate req.respond() File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 831, >in respond self.server.gateway(self).respond() File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1856, >in respond response = self.req.server.wsgi_app(self.env, self.start_response) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\bottle.py", line 874, in __call__ return self.wsgi(environ, start_response) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\bottle.py", line 869, in wsgi start_response('500 INTERNAL SERVER ERROR', headers) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1878, >in start_response raise AssertionError("WSGI start_response called a second " AssertionError: WSGI start_response called a second time with no exc_info.

Critical error while processing request: /public/jquery-2.1.3.min.js

AssertionError('WSGI >start_response called a second time with no exc_info.',) Traceback (most recent call last): File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\bottle.py", line 855, in wsgi start_response(response._status_line, response.headerlist) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1906, >in start_response self.req.outheaders.append((k.encode('ISO-8859-1'), v.encode('ISO-8859-1'))) UnicodeEncodeError: 'latin-1' codec can't encode characters in position 0-1: ordinal not in range(256) During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1035, >in communicate req.respond() File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 831, >in respond self.server.gateway(self).respond() File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1856, >in respond response = self.req.server.wsgi_app(self.env, self.start_response) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\bottle.py", line 874, in __call__ return self.wsgi(environ, start_response) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\bottle.py", line 869, in wsgi start_response('500 INTERNAL SERVER ERROR', headers) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1878, >in start_response raise AssertionError("WSGI start_response called a second " AssertionError: WSGI start_response called a second time with no exc_info.

Critical error while processing request: /public/app.js

AssertionError('WSGI start_response >called a second time with no exc_info.',) Traceback (most recent call last): File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\bottle.py", line 855, in wsgi start_response(response._status_line, response.headerlist) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1906, >in start_response self.req.outheaders.append((k.encode('ISO-8859-1'), v.encode('ISO-8859-1'))) UnicodeEncodeError: 'latin-1' codec can't encode characters in position 0-1: ordinal not in range(256) During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1035, >in communicate req.respond() File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 831, >in respond self.server.gateway(self).respond() File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1856, >in respond response = self.req.server.wsgi_app(self.env, self.start_response) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\bottle.py", line 874, in __call__ return self.wsgi(environ, start_response) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\bottle.py", line 869, in wsgi start_response('500 INTERNAL SERVER ERROR', headers) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1878, >in start_response raise AssertionError("WSGI start_response called a second " AssertionError: WSGI start_response called a second time with no exc_info.

Critical error while processing request: >/public/imagesloaded.pkgd.min.js

AssertionError('WSGI start_response called a second time with >no exc_info.',) Traceback (most recent call last): File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\bottle.py", line 855, in wsgi start_response(response._status_line, response.headerlist) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1906, >in start_response self.req.outheaders.append((k.encode('ISO-8859-1'), v.encode('ISO-8859-1'))) UnicodeEncodeError: 'latin-1' codec can't encode characters in position 0-1: ordinal not in range(256) During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1035, >in communicate req.respond() File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 831, >in respond self.server.gateway(self).respond() File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1856, >in respond response = self.req.server.wsgi_app(self.env, self.start_response) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\bottle.py", line 874, in __call__ return self.wsgi(environ, start_response) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\bottle.py", line 869, in wsgi start_response('500 INTERNAL SERVER ERROR', headers) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1878, >in start_response raise AssertionError("WSGI start_response called a second " AssertionError: WSGI start_response called a second time with no exc_info.

Critical error while processing request: /public/app.js

AssertionError('WSGI start_response >called a second time with no exc_info.',) Traceback (most recent call last): File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\bottle.py", line 855, in wsgi start_response(response._status_line, response.headerlist) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1906, >in start_response self.req.outheaders.append((k.encode('ISO-8859-1'), v.encode('ISO-8859-1'))) UnicodeEncodeError: 'latin-1' codec can't encode characters in position 0-1: ordinal not in range(256) During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1035, >in communicate req.respond() File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 831, >in respond self.server.gateway(self).respond() File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1856, >in respond response = self.req.server.wsgi_app(self.env, self.start_response) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\bottle.py", line 874, in __call__ return self.wsgi(environ, start_response) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\bottle.py", line 869, in wsgi start_response('500 INTERNAL SERVER ERROR', headers) File "C:\Users\John\AppData\Roaming\Sublime Text >3\Packages\OmniMarkupPreviewer\OmniMarkupLib\libs\cherrypy\wsgiserver\wsgiserver3.py", line 1878, >in start_response raise AssertionError("WSGI start_response called a second " AssertionError: WSGI start_response called a second time with no exc_info.

[halfmoonvic]

I have solved it. There is a conflict between 'OmniMarkupPreviewer' and 'PlainTasks'. I just ignore the 'PlainTasks', I don't know how to fix this.

[yeshiqing]

@banyuewan I met the same question and I want to know how to fix it in details. I have the PlainTasks as well.

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add at 2017/2/19

well,I got it. Just remove plainTasks package and reinstall it~ It's sure they are conflicting but I still don't why, Since I'm not familiar with the python and sublime package run mechanism. I guess maybe the plainTasks has some updates.

[halfmoonvic]

@pageye123 you can ignore it at 'Preferences.sublime-settings' file. Anytime you need it, just reopen it, and restart the sublime.

[geekyouth]

@halfmoonvic 如图：设置里面忽略掉\Sublime Text Build 3176 x64-portable\Data\Packages\PlainTasks 这个文件后马上就可以实时预览 markdown 文件

"ignored_packages": [ "PlainTasks" ],