I have tried to create sandbox project with GXT 4 in IDEA with MAVEN. I did all as described here but got error from maven:

Code:
Failed to execute goal org.apache.maven.plugins:maven-archetype-plugin:2.4:generate (default-cli) on project standalone-pom: The desired archetype does not exist (com.sencha.gxt.archetypes:gxt-basic-support-4x-archetype:    1.0.0-SNAPSHOT) -> [Help 1]
Here is detailed log:

Code:
/usr/lib/jvm/java-8-oracle/bin/java -Dmaven.home=/home/pavel/bin/idea-IU-162.1447.26/plugins/maven/lib/maven3 -Dclassworlds.conf=/home/pavel/bin/idea-IU-162.1447.26/plugins/maven/lib/maven3/bin/m2.conf -Dfile.encoding=UTF-8 -classpath /home/pavel/bin/idea-IU-162.1447.26/plugins/maven/lib/maven3/boot/plexus-classworlds-2.4.jar org.codehaus.classworlds.Launcher -Didea.version=2016.2.3 -DinteractiveMode=false -DgroupId=com.example.sandbox -DartifactId=sandbox -Dversion=1.0-SNAPSHOT -DarchetypeGroupId=com.sencha.gxt.archetypes -DarchetypeArtifactId=gxt-basic-support-4x-archetype -DarchetypeVersion=    1.0.0-SNAPSHOT -DarchetypeRepository=https://oss.sonatype.org/content/repositories/snapshots -Dmodule=Sandbox org.apache.maven.plugins:maven-archetype-plugin:RELEASE:generate
[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building Maven Stub Project (No POM) 1
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] >>> maven-archetype-plugin:2.4:generate (default-cli) @ standalone-pom >>>
[INFO] 
[INFO] <<< maven-archetype-plugin:2.4:generate (default-cli) @ standalone-pom <<<
[INFO] 
[INFO] --- maven-archetype-plugin:2.4:generate (default-cli) @ standalone-pom ---
[INFO] Generating project in Batch mode
[INFO] Archetype defined by properties
Downloading: https://oss.sonatype.org/content/repositories/snapshots/com/sencha/gxt/archetypes/gxt-basic-support-4x-archetype/    1.0.0-SNAPSHOT/maven-metadata.xml
[WARNING] Could not transfer metadata com.sencha.gxt.archetypes:gxt-basic-support-4x-archetype:    1.0.0-SNAPSHOT/maven-metadata.xml from/to gxt-basic-support-4x-archetype-repo (https://oss.sonatype.org/content/repositories/snapshots): Illegal character in path at index 113: https://oss.sonatype.org/content/repositories/snapshots/com/sencha/gxt/archetypes/gxt-basic-support-4x-archetype/    1.0.0-SNAPSHOT/maven-metadata.xml
Downloading: https://oss.sonatype.org/content/repositories/snapshots/com/sencha/gxt/archetypes/gxt-basic-support-4x-archetype/    1.0.0-SNAPSHOT/gxt-basic-support-4x-archetype-    1.0.0-SNAPSHOT.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.791s
[INFO] Finished at: Fri Sep 02 00:23:47 MSK 2016
[INFO] Final Memory: 11M/240M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-archetype-plugin:2.4:generate (default-cli) on project standalone-pom: The desired archetype does not exist (com.sencha.gxt.archetypes:gxt-basic-support-4x-archetype:    1.0.0-SNAPSHOT) -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR] Maven execution terminated abnormally (exit code 1)