Running job through notebook in Zeppelin returns a 500 error

[#1]

PROBLEM:

Running the job in notebook through Zeppelin sometimes I am getting 500 error. The following can be seen in livy-livy-server.log file

...
17/04/25 14:04:30 ERROR SessionServlet$: internal error
com.fasterxml.jackson.core.JsonParseException: Illegal unquoted character ((CTRL-CHAR, code 13)): has to be escaped using backslash to be included in string value
 at [Source: HttpInputOverHTTP@62c493f2; line: 1, column: 76]
        at com.fasterxml.jackson.core.JsonParser._constructError(JsonParser.java:1419)
        at com.fasterxml.jackson.core.base.ParserMinimalBase._reportError(ParserMinimalBase.java:508)
        at com.fasterxml.jackson.core.base.ParserMinimalBase._throwUnquotedSpace(ParserMinimalBase.java:472)
        at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._finishString2(UTF8StreamJsonParser.java:2235)
        at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._finishString(UTF8StreamJsonParser.java:2165)
        at com.fasterxml.jackson.core.json.UTF8StreamJsonParser.getText(UTF8StreamJsonParser.java:279)
        at com.fasterxml.jackson.databind.deser.std.StringDeserializer.deserialize(StringDeserializer.java:29)
        at com.fasterxml.jackson.databind.deser.std.StringDeserializer.deserialize(StringDeserializer.java:12)
        at com.fasterxml.jackson.databind.deser.SettableBeanProperty.deserialize(SettableBeanProperty.java:538)
        at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeUsingPropertyBased(BeanDeserializer.java:344)
        at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1064)
        at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:264)
        at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:124)
        at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3066)
        at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2207)        at com.cloudera.livy.server.JsonServlet.bodyAs(JsonServlet.scala:102)
...

SOLUTION:

This problem happens when the code for notebook is copied over from ie. notepad, textpad. To fix it, type the code manually.