# Unable to push ion since yesterday

**URL:** <https://forum.datomic.com/t/unable-to-push-ion-since-yesterday/571>\
**Category:** Troubleshooting\
**Created:** [August 7, 2018, 12:42am UTC](https://forum.datomic.com/t/unable-to-push-ion-since-yesterday/571 "2018-08-07T00:42:34Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![crowl](https://avatars.discourse-cdn.com/v4/letter/c/76d3ee/32.png) [@crowl](https://forum.datomic.com/u/crowl)\
**Post date:** [August 7, 2018, 12:42am UTC](https://forum.datomic.com/t/unable-to-push-ion-since-yesterday/571/1 "2018-08-07T00:42:34Z")

</div>

Hi, after running the deploy command, it gets stuck while downloading `com.datomic/java-io:0.1.11` from the datomic-cloud repo. This is happening since yesterday, before that I had successfuly deployed many times. Any ideas?

Thanks in advance!

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<div class="post-metadata">

**Author:** ![crowl](https://avatars.discourse-cdn.com/v4/letter/c/76d3ee/32.png) [@crowl](https://forum.datomic.com/u/crowl)\
**Post date:** [August 7, 2018, 1:03am UTC](https://forum.datomic.com/t/unable-to-push-ion-since-yesterday/571/2 "2018-08-07T01:03:47Z")

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Sorry about the little context, wrote it on mobile.

My deps.edn is as follows:

```
{:paths ["src" "resources"]
 :deps
 {org.clojure/clojure {:mvn/version "1.9.0"}
  com.datomic/client-cloud {:mvn/version "0.8.56"}
 ;; pedestal 0.5.4, component 0.3.2, transit-clj 0.8.309 
 }
 :mvn/repos
 {"datomic-cloud" {:url "s3://datomic-releases-1fc2183a/maven/releases"}}
 :aliases
 {:dev
  {:extra-deps
   {com.datomic/ion-dev {:mvn/version "0.9.175"}}}}}

```

And my `ion-config.edn`:

```
{:allow [some.tx-function/foo]
 :app-name "{my app}"}
```

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<div class="post-metadata">

**Author:** ![jaret](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.datomic.com/jaret/32/45_2.png) [@jaret](https://forum.datomic.com/u/jaret)\
**Post date:** [August 7, 2018, 1:32pm UTC](https://forum.datomic.com/t/unable-to-push-ion-since-yesterday/571/3 "2018-08-07T13:32:25Z")

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Hi @Crowl it looks like you’re missing the com.datomic/ion library.

I copied your deps and added the ion lib and was able to successfully deploy:

```auto
13 {:paths ["src" "resources"]
 14 :deps
 15 {org.clojure/clojure {:mvn/version "1.9.0"}
 16 com.datomic/client-cloud {:mvn/version "0.8.56"}
 17 com.datomic/ion {:mvn/version "0.9.16"}
 18 ;; pedestal 0.5.4, component 0.3.2, transit-clj 0.8.309
 19 }
 20 :mvn/repos
 21 {"datomic-cloud" {:url "s3://datomic-releases-1fc2183a/maven/releases"}}
 22 :aliases
 23 {:dev
 24 {:extra-deps
 25 {com.datomic/ion-dev {:mvn/version "0.9.175"}}}}}

```

FYI: To troubleshoot a failed deployment I went to the CloudWatch Logs for my datomic-my-app-name group. There I was able to see `IonLambdaDispatcherFailedtoStart` messages and see that the classpath was missing the `api_gateway.clj` from the following error:

```auto
 "Msg": "IonLambdaDispatcherFailedtoStart",
    "Ex": {
        "Cause": "Could not locate datomic/ion/lambda/api_gateway__init.class or datomic/ion/lambda/api_gateway.clj on classpath. Please check that namespaces with dashes use underscores in the Clojure file name.",
        "Via": [
            {
                "Type": "clojure.lang.Compiler$CompilerException",
                "Message": "java.io.FileNotFoundException: Could not locate datomic/ion/lambda/api_gateway__init.class or datomic/ion/lambda/api_gateway.clj on classpath. Please check that namespaces with dashes use underscores in the Clojure file name., compiling:(datomic/ion/starter.clj:1:1)",
                "At": [
                    "clojure.lang.Compiler",
                    "load",
                    "Compiler.java",
                    7526
                ]
            },........

```

You will also see a `datomic.cluster-nodeV-main` failed exception

---

<div class="post-metadata">

**Author:** ![crowl](https://avatars.discourse-cdn.com/v4/letter/c/76d3ee/32.png) [@crowl](https://forum.datomic.com/u/crowl)\
**Post date:** [August 7, 2018, 10:08pm UTC](https://forum.datomic.com/t/unable-to-push-ion-since-yesterday/571/4 "2018-08-07T22:08:32Z")

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Hi @jaret, thank you for your response. I am not using the com.datomic/ion library since I’m just deploying transaction functions, not exposing them via lambdas. Is it still necessary to include the library?

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<div class="post-metadata">

**Author:** ![jaret](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.datomic.com/jaret/32/45_2.png) [@jaret](https://forum.datomic.com/u/jaret)\
**Post date:** [August 8, 2018, 2:29pm UTC](https://forum.datomic.com/t/unable-to-push-ion-since-yesterday/571/5 "2018-08-08T14:29:56Z")

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Yes it is still necessary to include the ion library for an ion deployment.

[https://docs.datomic.com/cloud/ions/ions-reference.html#requirements](https://docs.datomic.com/cloud/ions/ions-reference.html#requirements)  
[https://docs.datomic.com/cloud/ions/ions-reference.html#deps-edn](https://docs.datomic.com/cloud/ions/ions-reference.html#deps-edn)