# Problem in migrating from elastic search 1.7.2 to 2.2.0

**URL:** <https://discuss.elastic.co/t/problem-in-migrating-from-elastic-search-1-7-2-to-2-2-0/42786>\
**Category:** Elasticsearch\
**Created:** [February 25, 2016, 10:05pm UTC](https://discuss.elastic.co/t/problem-in-migrating-from-elastic-search-1-7-2-to-2-2-0/42786 "2016-02-25T22:05:26Z")\
**Posts on this page:** 15\
**Page:** 1

<div class="post-metadata">

**Author:** ![Madhuri\_Vemuri](https://avatars.discourse-cdn.com/v4/letter/m/a87d85/32.png) [@Madhuri\_Vemuri](https://discuss.elastic.co/u/Madhuri_Vemuri)\
**Post date:** [February 25, 2016, 10:05pm UTC](https://discuss.elastic.co/t/problem-in-migrating-from-elastic-search-1-7-2-to-2-2-0/42786/1 "2016-02-25T22:05:26Z")

</div>

i updated my elastic Search from 1.7.2 to 2.2.0

When I am running my Code I got the below error

Caused by: java.lang.NoSuchFieldError: FAIL\_ON\_SYMBOL\_HASH\_OVERFLOW  
11:23:51,194 INFO [stdout] (default task-9) at org.elasticsearch.common.xcontent.smile.SmileXContent.(SmileXContent.java:46)  
11:23:51,194 INFO [stdout] (default task-9) at org.elasticsearch.common.xcontent.XContentFactory.contentBuilder(XContentFactory.java:124)  
11:23:51,194 INFO [stdout] (default task-9) at org.elasticsearch.action.support.ToXContentToBytes.buildAsBytes(ToXContentToBytes.java:62  
11:23:51,194 INFO [stdout] (default task-9) at org.elasticsearch.action.search.SearchRequest.source(SearchRequest.java:250)  
11:23:51,194 INFO [stdout] (default task-9) at org.elasticsearch.action.search.SearchRequestBuilder.beforeExecute(SearchRequestBuilder.java:1027)  
11:23:51,195 INFO [stdout] (default task-9) at org.elasticsearch.action.search.SearchRequestBuilder.beforeExecute(SearchRequestBuilder.java:50)  
11:23:51,195 INFO [stdout] (default task-9) at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:85)  
11:23:51,195 INFO [stdout] (default task-9) at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:59)  
11:23:51,195 INFO [stdout] (default task-9) at com.comcast.bsacats.view.KibanaDashboardBean.getAllDocs(KibanaDashboardBean.java:170)  
11:23:51,195 INFO [stdout] (default task-9) at com.comcast.bsacats.view.KibanaDashboardBean.selectJobs(KibanaDashboardBean.java:131)  
11:23:51,196 INFO [stdout] (default task-9) at com.comcast.bsacats.view.KibanaDashboardBean.init(KibanaDashboardBean.java:111)  
11:23:51,196 INFO [stdout] (default task-9) ... 111 more

Can any body help me with the issue

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<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [February 26, 2016, 12:55am UTC](https://discuss.elastic.co/t/problem-in-migrating-from-elastic-search-1-7-2-to-2-2-0/42786/2 "2016-02-26T00:55:18Z")

</div>

Did you include to your project all needed jars?

Are you using Maven?

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<div class="post-metadata">

**Author:** ![Madhuri\_Vemuri](https://avatars.discourse-cdn.com/v4/letter/m/a87d85/32.png) [@Madhuri\_Vemuri](https://discuss.elastic.co/u/Madhuri_Vemuri)\
**Post date:** [February 26, 2016, 2:24pm UTC](https://discuss.elastic.co/t/problem-in-migrating-from-elastic-search-1-7-2-to-2-2-0/42786/3 "2016-02-26T14:24:08Z")

</div>

yes i use maven and i included all the required jars....

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<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [February 26, 2016, 2:45pm UTC](https://discuss.elastic.co/t/problem-in-migrating-from-elastic-search-1-7-2-to-2-2-0/42786/4 "2016-02-26T14:45:59Z")

</div>

Did you clean your target dir? May be you are using an older lib?

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<div class="post-metadata">

**Author:** ![Madhuri\_Vemuri](https://avatars.discourse-cdn.com/v4/letter/m/a87d85/32.png) [@Madhuri\_Vemuri](https://discuss.elastic.co/u/Madhuri_Vemuri)\
**Post date:** [February 26, 2016, 2:48pm UTC](https://discuss.elastic.co/t/problem-in-migrating-from-elastic-search-1-7-2-to-2-2-0/42786/5 "2016-02-26T14:48:52Z")

</div>

nope cleaned everything ... I was getting data from the elastic search .... so when i did that through my test cases got my data in the console ... but when i run my actual application it is throwing me this exception . I updated all the jars... and yet having the same trouble..

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<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [February 26, 2016, 3:14pm UTC](https://discuss.elastic.co/t/problem-in-migrating-from-elastic-search-1-7-2-to-2-2-0/42786/6 "2016-02-26T15:14:37Z")

</div>

The error message you have means to me that you have Jackson \< 2.4 in your classpath.

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<div class="post-metadata">

**Author:** ![Madhuri\_Vemuri](https://avatars.discourse-cdn.com/v4/letter/m/a87d85/32.png) [@Madhuri\_Vemuri](https://discuss.elastic.co/u/Madhuri_Vemuri)\
**Post date:** [February 26, 2016, 3:57pm UTC](https://discuss.elastic.co/t/problem-in-migrating-from-elastic-search-1-7-2-to-2-2-0/42786/7 "2016-02-26T15:57:48Z")

</div>

I checked my dependencies in my classpath as u suggested and they do not contain any jackson libraries below 2.4 version. Yet I faced the same issue ... below is the screenshot of my dependencies....

 ![](https://us1.discourse-cdn.com/elastic/original/2X/a/a4e4bf340f1dcba189ee19cbe569447cde7a5d40.png)

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<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [February 26, 2016, 4:15pm UTC](https://discuss.elastic.co/t/problem-in-migrating-from-elastic-search-1-7-2-to-2-2-0/42786/8 "2016-02-26T16:15:11Z")

</div>

What gives on your project:

```auto
mvn dependency:tree

```

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<div class="post-metadata">

**Author:** ![Madhuri\_Vemuri](https://avatars.discourse-cdn.com/v4/letter/m/a87d85/32.png) [@Madhuri\_Vemuri](https://discuss.elastic.co/u/Madhuri_Vemuri)\
**Post date:** [February 26, 2016, 4:31pm UTC](https://discuss.elastic.co/t/problem-in-migrating-from-elastic-search-1-7-2-to-2-2-0/42786/9 "2016-02-26T16:31:33Z")

</div>

[INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @ xxx-api ---  
[INFO] com.xxx-api:jar:1.5.2-SNAPSHOT  
[INFO] +- commons-httpclient:commons-httpclient:jar:3.1:compile  
[INFO] | +- commons-logging:commons-logging:jar:1.0.4:compile  
[INFO] | - commons-codec:commons-codec:jar:1.2:compile  
[INFO] +- javax:javaee-api:jar:6.0:provided  
[INFO] +- org.primefaces:primefaces:jar:5.3:compile  
[INFO] +- org.simpleframework:simple-xml:jar:2.6.6:compile  
[INFO] | +- stax:stax-api:jar:1.0.1:compile  
[INFO] | +- stax:stax:jar:1.2.0:compile  
[INFO] | - xpp3:xpp3:jar:1.1.3.3:compile  
[INFO] +- javax.servlet:javax.servlet-api:jar:3.1.0:compile  
[INFO] +- org.slf4j:slf4j-api:jar:1.7.5:compile  
[INFO] +- org.mongojack:mongojack:jar:2.1.0:compile  
[INFO] | +- org.mongodb:mongo-java-driver:jar:2.12.0:compile  
[INFO] | +- de.undercouch:bson4jackson:jar:2.3.1:compile  
[INFO] | +- javax.persistence:persistence-api:jar:1.0.2:compile  
[INFO] | - commons-io:commons-io:jar:2.4:compile  
[INFO] +- org.keycloak:keycloak-core:jar:1.0.4.Final:provided  
[INFO] +- org.jboss.resteasy:resteasy-client:jar:3.0.2.Final:compile  
[INFO] | - org.jboss.resteasy:resteasy-jaxrs:jar:3.0.2.Final:compile  
[INFO] | +- org.jboss.resteasy:jaxrs-api:jar:3.0.2.Final:compile  
[INFO] | +- org.slf4j:slf4j-simple:jar:1.5.8:runtime  
[INFO] | +- org.scannotation:scannotation:jar:1.0.3:compile  
[INFO] | | - javassist:javassist:jar:3.12.1.GA:compile  
[INFO] | +- javax.annotation:jsr250-api:jar:1.0:compile  
[INFO] | +- javax.activation:activation:jar:1.1:compile  
[INFO] | +- org.apache.httpcomponents:httpclient:jar:4.2.1:compile  
[INFO] | | - org.apache.httpcomponents:httpcore:jar:4.2.1:compile  
[INFO] | - net.jcip:jcip-annotations:jar:1.0:compile  
[INFO] +- org.elasticsearch:elasticsearch:jar:2.2.0:compile  
[INFO] | +- org.apache.lucene:lucene-core:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-backward-codecs:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-analyzers-common:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-queries:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-memory:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-highlighter:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-queryparser:jar:5.4.1:compile  
[INFO] | | - org.apache.lucene:lucene-sandbox:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-suggest:jar:5.4.1:compile  
[INFO] | | - org.apache.lucene:lucene-misc:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-join:jar:5.4.1:compile  
[INFO] | | - org.apache.lucene:lucene-grouping:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-spatial:jar:5.4.1:compile  
[INFO] | | +- org.apache.lucene:lucene-spatial3d:jar:5.4.1:compile  
[INFO] | | - com.spatial4j:spatial4j:jar:0.5:compile  
[INFO] | +- com.google.guava:guava:jar:18.0:compile  
[INFO] | +- org.elasticsearch:securesm:jar:1.0:compile  
[INFO] | +- com.carrotsearch:hppc:jar:0.7.1:compile  
[INFO] | +- joda-time:joda-time:jar:2.8.2:compile  
[INFO] | +- org.joda:joda-convert:jar:1.2:compile  
[INFO] | +- com.fasterxml.jackson.dataformat:jackson-dataformat-smile:jar:2.6.2:compile  
[INFO] | +- com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:jar:2.6.2:compile  
[INFO] | | - org.yaml:snakeyaml:jar:1.15:compile  
[INFO] | +- com.fasterxml.jackson.dataformat:jackson-dataformat-cbor:jar:2.6.2:compile  
[INFO] | +- io.netty:netty:jar:3.10.5.Final:compile  
[INFO] | +- com.ning:compress-lzf:jar:1.0.2:compile  
[INFO] | +- com.tdunning:t-digest:jar:3.0:compile  
[INFO] | +- org.hdrhistogram:HdrHistogram:jar:2.1.6:compile  
[INFO] | +- commons-cli:commons-cli:jar:1.3.1:compile  
[INFO] | - com.twitter:jsr166e:jar:1.1.0:compile  
[INFO] +- com.fasterxml.jackson.core:jackson-annotations:jar:2.6.4:compile  
[INFO] +- com.fasterxml.jackson.core:jackson-databind:jar:2.6.4:compile  
[INFO] - com.fasterxml.jackson.core:jackson-core:jar:2.6.4:compile  
[INFO]  
[INFO] ------------------------------------------------------------------------  
[INFO] Building service 1.5.2-SNAPSHOT  
[INFO] ------------------------------------------------------------------------

---

<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [February 26, 2016, 4:35pm UTC](https://discuss.elastic.co/t/problem-in-migrating-from-elastic-search-1-7-2-to-2-2-0/42786/10 "2016-02-26T16:35:57Z")

</div>

I have a doubt regarding bson4jackson which is used by your Mongo stuff.

I think you need a bson4jackson \> 2.6.x

Might be where you should look at...

HTH

---

<div class="post-metadata">

**Author:** ![Madhuri\_Vemuri](https://avatars.discourse-cdn.com/v4/letter/m/a87d85/32.png) [@Madhuri\_Vemuri](https://discuss.elastic.co/u/Madhuri_Vemuri)\
**Post date:** [February 26, 2016, 4:50pm UTC](https://discuss.elastic.co/t/problem-in-migrating-from-elastic-search-1-7-2-to-2-2-0/42786/11 "2016-02-26T16:50:53Z")

</div>

changed that too.... didnt help...

--- maven-dependency-plugin:2.8:tree (default-cli) @ xxx-api ---  
[INFO] [com.xxx.xxx](http://com.xxx.xxx):xxx-api:jar:1.5.2-SNAPSHOT  
[INFO] +- commons-httpclient:commons-httpclient:jar:3.1:compile  
[INFO] | +- commons-logging:commons-logging:jar:1.0.4:compile  
[INFO] | - commons-codec:commons-codec:jar:1.2:compile  
[INFO] +- javax:javaee-api:jar:6.0:provided  
[INFO] +- org.primefaces:primefaces:jar:5.3:compile  
[INFO] +- org.simpleframework:simple-xml:jar:2.6.6:compile  
[INFO] | +- stax:stax-api:jar:1.0.1:compile  
[INFO] | +- stax:stax:jar:1.2.0:compile  
[INFO] | - xpp3:xpp3:jar:1.1.3.3:compile  
[INFO] +- javax.servlet:javax.servlet-api:jar:3.1.0:compile  
[INFO] +- org.slf4j:slf4j-api:jar:1.7.5:compile  
[INFO] +- org.mongojack:mongojack:jar:2.1.0:compile  
[INFO] | +- org.mongodb:mongo-java-driver:jar:2.12.0:compile  
[INFO] | +- javax.persistence:persistence-api:jar:1.0.2:compile  
[INFO] | - commons-io:commons-io:jar:2.4:compile  
[INFO] +- org.keycloak:keycloak-core:jar:1.0.4.Final:provided  
[INFO] +- org.jboss.resteasy:resteasy-client:jar:3.0.2.Final:compile  
[INFO] | - org.jboss.resteasy:resteasy-jaxrs:jar:3.0.2.Final:compile  
[INFO] | +- org.jboss.resteasy:jaxrs-api:jar:3.0.2.Final:compile  
[INFO] | +- org.slf4j:slf4j-simple:jar:1.5.8:runtime  
[INFO] | +- org.scannotation:scannotation:jar:1.0.3:compile  
[INFO] | | - javassist:javassist:jar:3.12.1.GA:compile  
[INFO] | +- javax.annotation:jsr250-api:jar:1.0:compile  
[INFO] | +- javax.activation:activation:jar:1.1:compile  
[INFO] | +- org.apache.httpcomponents:httpclient:jar:4.2.1:compile  
[INFO] | | - org.apache.httpcomponents:httpcore:jar:4.2.1:compile  
[INFO] | - net.jcip:jcip-annotations:jar:1.0:compile  
[INFO] +- org.elasticsearch:elasticsearch:jar:2.2.0:compile  
[INFO] | +- org.apache.lucene:lucene-core:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-backward-codecs:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-analyzers-common:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-queries:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-memory:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-highlighter:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-queryparser:jar:5.4.1:compile  
[INFO] | | - org.apache.lucene:lucene-sandbox:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-suggest:jar:5.4.1:compile  
[INFO] | | - org.apache.lucene:lucene-misc:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-join:jar:5.4.1:compile  
[INFO] | | - org.apache.lucene:lucene-grouping:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-spatial:jar:5.4.1:compile  
[INFO] | | +- org.apache.lucene:lucene-spatial3d:jar:5.4.1:compile  
[INFO] | | - com.spatial4j:spatial4j:jar:0.5:compile  
[INFO] | +- com.google.guava:guava:jar:18.0:compile  
[INFO] | +- org.elasticsearch:securesm:jar:1.0:compile  
[INFO] | +- com.carrotsearch:hppc:jar:0.7.1:compile  
[INFO] | +- joda-time:joda-time:jar:2.8.2:compile  
[INFO] | +- org.joda:joda-convert:jar:1.2:compile  
[INFO] | +- com.fasterxml.jackson.dataformat:jackson-dataformat-smile:jar:2.6.2:compile  
[INFO] | +- com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:jar:2.6.2:compile  
[INFO] | | - org.yaml:snakeyaml:jar:1.15:compile  
[INFO] | +- com.fasterxml.jackson.dataformat:jackson-dataformat-cbor:jar:2.6.2:compile  
[INFO] | +- io.netty:netty:jar:3.10.5.Final:compile  
[INFO] | +- com.ning:compress-lzf:jar:1.0.2:compile  
[INFO] | +- com.tdunning:t-digest:jar:3.0:compile  
[INFO] | +- org.hdrhistogram:HdrHistogram:jar:2.1.6:compile  
[INFO] | +- commons-cli:commons-cli:jar:1.3.1:compile  
[INFO] | - com.twitter:jsr166e:jar:1.1.0:compile  
[INFO] +- com.fasterxml.jackson.core:jackson-annotations:jar:2.6.4:compile  
[INFO] +- com.fasterxml.jackson.core:jackson-databind:jar:2.6.4:compile  
[INFO] +- com.fasterxml.jackson.core:jackson-core:jar:2.6.4:compile  
[INFO] - de.undercouch:bson4jackson:jar:2.7.0:compile  
[INFO]  
[INFO] ------------------------------------------------------------------------  
[INFO] Building service 1.5.2-SNAPSHOT  
[INFO] ------------------------------------------------------------------------

---

<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [February 26, 2016, 5:34pm UTC](https://discuss.elastic.co/t/problem-in-migrating-from-elastic-search-1-7-2-to-2-2-0/42786/12 "2016-02-26T17:34:06Z")

</div>

Ok. Let's do it simple.

Can you try the same thing with a blank project which contains only elasticsearch dependency?  
If it works, then add each dependency one by one to your project and try to detect which ones is doing that.

Note that sometimes, just moving `elasticsearch` as your first dependency in maven `pom.xml` can change things. (I did not say "can fix things").

---

<div class="post-metadata">

**Author:** ![chakkasm](https://avatars.discourse-cdn.com/v4/letter/c/4af34b/32.png) [@chakkasm](https://discuss.elastic.co/u/chakkasm)\
**Post date:** [March 13, 2016, 12:03am UTC](https://discuss.elastic.co/t/problem-in-migrating-from-elastic-search-1-7-2-to-2-2-0/42786/13 "2016-03-13T00:03:26Z")

</div>

Hi  
I have just downloaded elasticsearch 2.2 jar and when wrote sample TransportClient getting exception

Exception in thread "main" java.lang.NoSuchFieldError: FAIL\_ON\_SYMBOL\_HASH\_OVERFLOW  
at org.elasticsearch.common.xcontent.smile.SmileXContent.(SmileXContent.java:46)

I have the following dependency: tree  
[INFO] +- org.elasticsearch:elasticsearch:jar:2.2.0:compile  
[INFO] | +- org.apache.lucene:lucene-core:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-backward-codecs:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-analyzers-common:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-queries:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-memory:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-highlighter:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-queryparser:jar:5.4.1:compile  
[INFO] | | - org.apache.lucene:lucene-sandbox:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-suggest:jar:5.4.1:compile  
[INFO] | | - org.apache.lucene:lucene-misc:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-join:jar:5.4.1:compile  
[INFO] | | - org.apache.lucene:lucene-grouping:jar:5.4.1:compile  
[INFO] | +- org.apache.lucene:lucene-spatial:jar:5.4.1:compile  
[INFO] | | +- org.apache.lucene:lucene-spatial3d:jar:5.4.1:compile  
[INFO] | | - com.spatial4j:spatial4j:jar:0.5:compile  
[INFO] | +- org.elasticsearch:securesm:jar:1.0:compile  
[INFO] | +- com.carrotsearch:hppc:jar:0.7.1:compile  
[INFO] | +- org.joda:joda-convert:jar:1.2:compile  
[INFO] | +- com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:jar:2.6.2:compile  
[INFO] | | - org.yaml:snakeyaml:jar:1.15:compile  
[INFO] | +- com.fasterxml.jackson.dataformat:jackson-dataformat-cbor:jar:2.6.2:compile  
[INFO] | +- io.netty:netty:jar:3.10.5.Final:compile  
[INFO] | +- com.ning:compress-lzf:jar:1.0.2:compile  
[INFO] | +- com.tdunning:t-digest:jar:3.0:compile  
[INFO] | +- org.hdrhistogram:HdrHistogram:jar:2.1.6:compile  
[INFO] | - com.twitter:jsr166e:jar:1.1.0:compile  
[INFO] +- com.fasterxml.jackson.core:jackson-core:jar:2.7.2:compile  
[INFO] +- com.fasterxml.jackson.dataformat:jackson-dataformat-smile:jar:2.7.2:compile

what is missing ?? Tried with standalone and same issue... Please suggest..

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<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [March 13, 2016, 2:23am UTC](https://discuss.elastic.co/t/problem-in-migrating-from-elastic-search-1-7-2-to-2-2-0/42786/14 "2016-03-13T02:23:32Z")

</div>

Did you clean the project?  
You probably have another Jackson lib version which is conflicting.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 5, 2017, 11:08pm UTC](https://discuss.elastic.co/t/problem-in-migrating-from-elastic-search-1-7-2-to-2-2-0/42786/15 "2017-07-05T23:08:50Z")

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