Angular & Node Issues

	Where		Why	How to resolve
Error message	Error Location	Error type	Error identification (Cause)	Probable resolution
Internal error. Please try again!!	On Browser	Exception	Issue in data, key not found, or file not there in s3	"1. Make sure the file is available in s3 or not 2. Check the data format is correct or not."
NoSuchKey: The specified key does not exist	/opt/cqube/logs/server_side-error.log	File not present exception	If specified file is not present at its location	Make sure all file are available which we are used
Request failed with status code 401	On Browser	Unauthorised user	When ever token expired, user will be unauthorised	User should refresh page and login with valid username and password
Error: uncaughtException: ENOENT: no such file or directory	/opt/cqube/logs/server_side-error.log	Local file is not there at given location	The file which we are trying to read is not present at its location	We should put the required file at given location
Error: Request failed with status code 502	On Browser	Bad gateway	If specified url is not accessible	Restart the ngnix server or otherwise give sudo pm2 resurrect
UncaughtException: The specified bucket does not exist	/opt/cqube/logs/admin_server_side-error.log	S3 bucket not exist	The bucket which we are trying to access is not present	Create all the required buckets
TypeError: Cannot read property 'toString' of undefined	/opt/cqube/logs/server_side-error.log	Key unavailable	If specific key is not found	Make sure key is there in data, if not there put it as empty or null value
TypeError: districtData.map is not a function	/opt/cqube/logs/server_side-error.log	If file has no data	If file is there but data is null	If data is not there don't create files
NetworkingError: socket hang up	/opt/cqube/logs/server_side-error.log	Network issue	If network is very weak or not connected	Check you internet connection
Error: Cannot find module 's3-append'/any	/opt/cqube/logs/server_side-error.log	Library not installed	If we are using some module that is not installed	Do npm install and rerun the server
TypeError: Cannot read property 'keyname(any key)' of null/undefined	/opt/cqube/logs/server_side-error.log	Key unavailable	Trying to access a key which is null/undefined	Check the data, if key not present put the key with null value in s3 files
TypeError: districtsData.sort is not a function	/opt/cqube/logs/server_side-error.log	If file has no data	If file is there but data is null	If data is not there don't create files
RequestTimeTooSkewed: The difference between the request time and the current time is too large	/opt/cqube/logs/server_side-error.log	System time not correct	If syatem time is different from actual time	Change your system time to actual time