Not sure if it's on the Front-end or backend but on master branch if i try to use the Source connector for Files, i get exceptions thrown because the value is not in the ENUM but it is selected from the UI (one of the value of the enum)...

what is the JSON being input from the UI?

Maybe @Artem Astapenko would be able to answer? It's a combobox i cant type in it

can you see the input in the logs?

server logs

No not much more infos

Hm, I have the same error. Looks like problem is on backend side.

Those look like perfectly fine choices! it should be accepted on the backend and passed to the integration...

airbyte-server | object:
airbyte-server | {
airbyte-server |   "reader_options" : "{}",
airbyte-server |   "storage" : "HTTPS",
airbyte-server |   "format" : "csv",
airbyte-server |   "url" : "<https://people.sc.fsu.edu/~jburkardt/data/csv/addresses.csv>"
airbyte-server | }
airbyte-server | 	at io.airbyte.server.apis.ConfigurationApi.execute(ConfigurationApi.java:357) ~[io.airbyte-airbyte-server-0.2.1-alpha.jar:?]
airbyte-server | 	at io.airbyte.server.apis.ConfigurationApi.webBackendCreateSource(ConfigurationApi.java:151) ~[io.airbyte-airbyte-server-0.2.1-alpha.jar:?]
airbyte-server | 	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
airbyte-server | 	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?]
airbyte-server | 	at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
airbyte-server | 	at java.lang.reflect.Method.invoke(Method.java:564) ~[?:?]

object:
airbyte-server | {
airbyte-server |   "reader_options" : "{}",
airbyte-server |   "storage" : "HTTPS",
airbyte-server |   "format" : "csv",
airbyte-server |   "url" : "<https://people.sc.fsu.edu/~jburkardt/data/csv/addresses.csv>"
airbyte-server | }
airbyte-server | 	at io.airbyte.validation.json.JsonSchemaValidator.ensure(JsonSchemaValidator.java:68) ~[io.airbyte-airbyte-json-validation-0.2.1-alpha.jar:?]
airbyte-server | 	at io.airbyte.server.handlers.SourceHandler.validateSource(SourceHandler.java:194) ~[io.airbyte-airbyte-server-0.2.1-alpha.jar:?]
airbyte-server | 	at io.airbyte.server.handlers.SourceHandler.createSource(SourceHandler.java:81) ~[io.airbyte-airbyte-server-0.2.1-alpha.jar:?]
airbyte-server | 	at io.airbyte.server.handlers.WebBackendSourceHandler.webBackendCreateSourceAndCheck(WebBackendSourceHandler.java:60) ~[io.airbyte-airbyte-server-0.2.1-alpha.jar:?]
airbyte-server | 	at io.airbyte.server.apis.ConfigurationApi.lambda$webBackendCreateSource$4(ConfigurationApi.java:151) ~[io.airbyte-airbyte-server-0.2.1-alpha.jar:?]
airbyte-server | 	at io.airbyte.server.apis.ConfigurationApi.execute(ConfigurationApi.java:349) ~[io.airbyte-airbyte-server-0.2.1-alpha.jar:?]
airbyte-server | 	... 53 more
airbyte-server | Nov 06, 2020 8:10:15 PM org.glassfish.jersey.logging.LoggingInterceptor log

Sherif, if you need some extra logs or info - just ping me, though I suppose everything I could provide - I provided.

taking a look