# Ignition 8 mvn install command **URL:** \ **Category:** Module Development\ **Tags:** ignition80\ **Created:** [October 6, 2020, 9:00pm UTC](https://forum.inductiveautomation.com/t/ignition-8-mvn-install-command/39443 "2020-10-06T21:00:52Z")\ **Posts on this page:** 17\ **Page:** 1
**Author:** ![cody.tamaki](https://avatars.discourse-cdn.com/v4/letter/c/b487fb/32.png) [@cody.tamaki](https://forum.inductiveautomation.com/u/cody.tamaki)\ **Post date:** [October 6, 2020, 9:00pm UTC](https://forum.inductiveautomation.com/t/ignition-8-mvn-install-command/39443/1 "2020-10-06T21:00:52Z")
I’m developing a module for Ignition 8 and using a docker container as my Ignition 8 server. The error message I’m getting is: `Could not post the module to the Gateway.: Could not post module to gateway. Error writing to server -> [Help 1]` I have included the module upload argument into the gateway config: `-Dia.developer.moduleupload=true` I can also see the servlet is active from my web browser at: [http://localhost:8088/system/DeveloperModuleLoadingServlet](http://localhost:8088/system/DeveloperModuleLoadingServlet) I’m using v1.1.0 for the ignition-maven-plugin. Anything else I’m missing or need to check? ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [October 6, 2020, 9:08pm UTC](https://forum.inductiveautomation.com/t/ignition-8-mvn-install-command/39443/2 "2020-10-06T21:08:20Z")
if you re-run maven with the `-e` switch what does the full stack trace say? ---
**Author:** ![cody.tamaki](https://avatars.discourse-cdn.com/v4/letter/c/b487fb/32.png) [@cody.tamaki](https://forum.inductiveautomation.com/u/cody.tamaki)\ **Post date:** [October 6, 2020, 11:06pm UTC](https://forum.inductiveautomation.com/t/ignition-8-mvn-install-command/39443/3 "2020-10-06T23:06:31Z")
```auto at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:215) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289) at org.apache.maven.cli.MavenCli.main (MavenCli.java:193) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62) at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke (Method.java:564) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347) Caused by: org.apache.maven.plugin.MojoExecutionException: Could not post the module to the Gateway. at com.inductiveautomation.ignitionsdk.PostModuleMojo.execute (PostModuleMojo.java:73) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289) at org.apache.maven.cli.MavenCli.main (MavenCli.java:193) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62) at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke (Method.java:564) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347) Caused by: org.apache.maven.plugin.MojoExecutionException: Could not post module to gateway. at com.inductiveautomation.ignitionsdk.PostModuleMojo.postModuleToGateway (PostModuleMojo.java:114) at com.inductiveautomation.ignitionsdk.PostModuleMojo.execute (PostModuleMojo.java:71) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289) at org.apache.maven.cli.MavenCli.main (MavenCli.java:193) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62) at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke (Method.java:564) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347) Caused by: java.io.IOException: Error writing to server at sun.net.www.protocol.http.HttpURLConnection.writeRequests (HttpURLConnection.java:719) at sun.net.www.protocol.http.HttpURLConnection.writeRequests (HttpURLConnection.java:731) at sun.net.www.protocol.http.HttpURLConnection.getInputStream0 (HttpURLConnection.java:1616) at sun.net.www.protocol.http.HttpURLConnection.getInputStream (HttpURLConnection.java:1523) at com.inductiveautomation.ignitionsdk.PostModuleMojo.postModuleToGateway (PostModuleMojo.java:105) at com.inductiveautomation.ignitionsdk.PostModuleMojo.execute (PostModuleMojo.java:71) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289) at org.apache.maven.cli.MavenCli.main (MavenCli.java:193) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62) at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke (Method.java:564) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347) ``` ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [October 6, 2020, 11:24pm UTC](https://forum.inductiveautomation.com/t/ignition-8-mvn-install-command/39443/4 "2020-10-06T23:24:40Z")
Hmm. Don’t know, looks like some kind of network problem: ```auto Caused by: java.io.IOException: Error writing to server at sun.net.www.protocol.http.HttpURLConnection.writeRequests (HttpURLConnection.java:719) at sun.net.www.protocol.http.HttpURLConnection.writeRequests (HttpURLConnection.java:731) at sun.net.www.protocol.http.HttpURLConnection.getInputStream0 (HttpURLConnection.java:1616) at sun.net.www.protocol.http.HttpURLConnection.getInputStream (HttpURLConnection.java:1523) ``` Obvious guess would be something to do with it running in a docker container but I don’t know where to start looking. Firewall or AV maybe? Not sure why your browser resolves it without issue, though. ---
**Author:** ![cody.tamaki](https://avatars.discourse-cdn.com/v4/letter/c/b487fb/32.png) [@cody.tamaki](https://forum.inductiveautomation.com/u/cody.tamaki)\ **Post date:** [October 6, 2020, 11:28pm UTC](https://forum.inductiveautomation.com/t/ignition-8-mvn-install-command/39443/5 "2020-10-06T23:28:21Z")
I just added the debug logger on your plugin there and I think this is failing on line 105 of your PostModuleMojo class when we’re trying to read back whatever the gateway reply is… I was able to see the “Successfully wrote to gateway” message. > ``` BufferedReader br = new BufferedReader(new InputStreamReader(urlConn.getInputStream())); String line = null; while ((line = br.readLine()) != null) { getLog().debug(line); } ``` ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [October 6, 2020, 11:33pm UTC](https://forum.inductiveautomation.com/t/ignition-8-mvn-install-command/39443/6 "2020-10-06T23:33:29Z")
Maybe you can capture the traffic from the plugin vs the browser in Wireshark and we’ll see a difference. ---
**Author:** ![cody.tamaki](https://avatars.discourse-cdn.com/v4/letter/c/b487fb/32.png) [@cody.tamaki](https://forum.inductiveautomation.com/u/cody.tamaki)\ **Post date:** [October 6, 2020, 11:40pm UTC](https://forum.inductiveautomation.com/t/ignition-8-mvn-install-command/39443/7 "2020-10-06T23:40:42Z")
Yup good idea - here’s a link to my wireshark capture: > **[MavenPlugin.pcapng](https://www.dropbox.com/s/ailw0zbw1leas67/MavenPlugin.pcapng?dl=0)** > > Shared with Dropbox ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [October 6, 2020, 11:42pm UTC](https://forum.inductiveautomation.com/t/ignition-8-mvn-install-command/39443/8 "2020-10-06T23:42:15Z")
I don’t think the HttpURLConnection used by the plugin is configured to follow redirects. Feel free to make that change and submit a PR. You can `mvn install` the modified plugin and use it locally until we release it. ---
**Author:** ![cody.tamaki](https://avatars.discourse-cdn.com/v4/letter/c/b487fb/32.png) [@cody.tamaki](https://forum.inductiveautomation.com/u/cody.tamaki)\ **Post date:** [October 6, 2020, 11:51pm UTC](https://forum.inductiveautomation.com/t/ignition-8-mvn-install-command/39443/9 "2020-10-06T23:51:10Z")
Right will do thank you Kevin 👍 ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [October 7, 2020, 12:34am UTC](https://forum.inductiveautomation.com/t/ignition-8-mvn-install-command/39443/10 "2020-10-07T00:34:04Z")
I think the URL in the plugin could be updated as well: it’s now [http://localhost:8088/system/DeveloperModuleLoadingServlet](http://localhost:8088/system/DeveloperModuleLoadingServlet) and not [http://localhost:8088/main/system/DeveloperModuleLoadingServlet](http://localhost:8088/main/system/DeveloperModuleLoadingServlet), which is where the redirect is coming from. ---
**Author:** ![kgamble](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kgamble/32/8019_2.png) [@kgamble](https://forum.inductiveautomation.com/u/kgamble)\ **Post date:** [March 16, 2021, 7:47pm UTC](https://forum.inductiveautomation.com/t/ignition-8-mvn-install-command/39443/11 "2021-03-16T19:47:42Z")
Did this ever get merged into the plugin? Having the exact same issue with a gateway running in a local docker container on port 80, have tried ```auto http://localhost:80 ``` and ```auto http://localhost ``` to no avail ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [March 16, 2021, 7:48pm UTC](https://forum.inductiveautomation.com/t/ignition-8-mvn-install-command/39443/12 "2021-03-16T19:48:59Z")
No it’s sitting in a PR if you want to build yourself a copy: [https://github.com/inductiveautomation/ignition-maven-plugin/pull/4](https://github.com/inductiveautomation/ignition-maven-plugin/pull/4) He kept adding commits and then I forgot all about it. ---
**Author:** ![cody.tamaki](https://avatars.discourse-cdn.com/v4/letter/c/b487fb/32.png) [@cody.tamaki](https://forum.inductiveautomation.com/u/cody.tamaki)\ **Post date:** [March 16, 2021, 9:43pm UTC](https://forum.inductiveautomation.com/t/ignition-8-mvn-install-command/39443/13 "2021-03-16T21:43:14Z")
Yeah sorry I’m all done playing if you’d like to merge it. I was playing with adding another maven goal to sign the module but I decided that was too much crap in one pull request (and it was a dumb idea anyway). ---
**Author:** ![cody.tamaki](https://avatars.discourse-cdn.com/v4/letter/c/b487fb/32.png) [@cody.tamaki](https://forum.inductiveautomation.com/u/cody.tamaki)\ **Post date:** [May 25, 2021, 10:48pm UTC](https://forum.inductiveautomation.com/t/ignition-8-mvn-install-command/39443/14 "2021-05-25T22:48:31Z")
@Kevin.Herron is there anyway we can publish this to your maven repository? ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [May 26, 2021, 1:45pm UTC](https://forum.inductiveautomation.com/t/ignition-8-mvn-install-command/39443/15 "2021-05-26T13:45:00Z")
I’ll try to do a release of the plugin today. ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [May 26, 2021, 3:08pm UTC](https://forum.inductiveautomation.com/t/ignition-8-mvn-install-command/39443/16 "2021-05-26T15:08:28Z")
Okay, version 1.2.0 of the plugin is now published to Maven Central. Should be available soon if not already. ---
**Author:** ![cody.tamaki](https://avatars.discourse-cdn.com/v4/letter/c/b487fb/32.png) [@cody.tamaki](https://forum.inductiveautomation.com/u/cody.tamaki)\ **Post date:** [May 26, 2021, 7:39pm UTC](https://forum.inductiveautomation.com/t/ignition-8-mvn-install-command/39443/17 "2021-05-26T19:39:55Z")
Thanks Kevin!