Github user vgmartinez commented on the pull request: https://github.com/apache/incubator-zeppelin/pull/667#issuecomment-181007407 Hi @felixcheung I'm online now. I think there are two ways to handle this: * check that when a paragraph is executed there is an interpreter and a valid prefix. (front-end) * the interpreter always parsing a valid option. (backed-end) generally: when we put a name not valid interpreter also have a problem in this way we can also fix that what do you think...?
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