# Mvel script\_fields error **URL:** \ **Category:** Elasticsearch\ **Created:** [June 19, 2014, 6:31pm UTC](https://discuss.elastic.co/t/mvel-script-fields-error/18218 "2014-06-19T18:31:15Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Neeraj\_Makam](https://avatars.discourse-cdn.com/v4/letter/n/94ad74/32.png) [@Neeraj\_Makam](https://discuss.elastic.co/u/Neeraj_Makam)\ **Post date:** [June 19, 2014, 6:31pm UTC](https://discuss.elastic.co/t/mvel-script-fields-error/18218/1 "2014-06-19T18:31:15Z")
Hi I am running a script in mvel (scripted fields) that returns a computed value by getting the payload information. When i run the script, for the first few times i get the following error. After executing the query 3-4 times, the mvel script starts working perfectly fine till i change the parameter value. Once changed, it again takes few attempts before it starts working. (sometimes works on the first attempt, and sometimes 4th/5th attempt). Is there any solution for this? Error: { "error": "SearchPhaseExecutionException[Failed to execute phase [query\_fetch], all shards failed; shardFailures {[SEKBsVXpS56AFe9Sshmxpg][codeindex][0]: ElasticsearchException[Bad type on operand stack\nException Details:\n Location:\n ASMAccessorImpl\_3185728311403177607390.getValue(Ljava/lang/Object;Ljava/lang/Object;Lorg/elasticsearch/common/mvel2/integration/VariableResolverFactory;)Ljava/lang/Object; @27: invokeinterface\n Reason:\n Type 'java/lang/Object' (current frame, stack[1]) is not assignable to integer\n Current Frame:\n bci: @27\n flags: { }\n locals: { 'ASMAccessorImpl\_3185728311403177607390', 'java/lang/Object', 'java/lang/Object', 'org/elasticsearch/common/mvel2/integration/VariableResolverFactory' }\n stack: { 'java/util/List', 'java/lang/Object' }\n Bytecode:\n 0000000: 2d12 0eb9 0014 0200 b900 1901 00c0 001b\n 0000010: 2ab4 001f 2c2d b900 2403 00b9 0028 0200\n 0000020: b0 \n]; nested: VerifyError[Bad type on operand stack\nException Details:\n Location:\n ASMAccessorImpl\_3185728311403177607390.getValue(Ljava/lang/Object;Ljava/lang/Object;Lorg/elasticsearch/common/mvel2/integration/VariableResolverFactory;)Ljava/lang/Object; @27: invokeinterface\n Reason:\n Type 'java/lang/Object' (current frame, stack[1]) is not assignable to integer\n Current Frame:\n bci: @27\n flags: { }\n locals: { 'ASMAccessorImpl\_3185728311403177607390', 'java/lang/Object', 'java/lang/Object', 'org/elasticsearch/common/mvel2/integration/VariableResolverFactory' }\n stack: { 'java/util/List', 'java/lang/Object' }\n Bytecode:\n 0000000: 2d12 0eb9 0014 0200 b900 1901 00c0 001b\n 0000010: 2ab4 001f 2c2d b900 2403 00b9 0028 0200\n 0000020: b0 \n]; }]", "status": 500 } I've tried ES 1.1.1, 1.2.1, Jre7 and Jre8 already. It still is the same. -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/f12e0805-4f17-41a1-b436-f6c3daf5b329%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/f12e0805-4f17-41a1-b436-f6c3daf5b329%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 1:21am UTC](https://discuss.elastic.co/t/mvel-script-fields-error/18218/2 "2017-07-06T01:21:07Z")