Github user zsxwing commented on the pull request:
https://github.com/apache/spark/pull/13283#issuecomment-221662515
> ISSUE 3: Unable to detect incompatibility libraries for Spark 2.0 in Data
Source Resolution. We report a strange error message:
> SQL Example:
> select id from
`org.apache.spark.sql.sources.HadoopFsRelationProvider`.`file_path`
> Error Message:
> Table or view not found:
`org.apache.spark.sql.sources.HadoopFsRelationProvider`.`file_path`
This is not an issue you need to fix. `HadoopFsRelationProvider` is just an
interface in Spark 1.6. The user should not use it like this. If someone sees
HadoopFsRelationProvider is not found, it's usually a link issue. E.g.,
`com.databricks.spark.avro.DefaultSource` extends `HadoopFsRelationProvider`,
however, `HadoopFsRelationProvider` has been removed in 2.0, so when loading
`com.databricks.spark.avro.DefaultSource`, it will throw
`NoClassDefFoundError(HadoopFsRelationProvider)` instead of
`ClassNotFoundException(com.databricks.spark.avro.DefaultSource)`
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