A Guide For building Appinventor In both Windows and Linux!

abhi0 · March 19, 2022, 8:41am

I have setup all the steps and there is no error in any step

Aarush_Kumar · March 19, 2022, 8:43am

then as i said if you have everything setup then just the java_dev_appserver cmd and if you edit any code then run ant before using java_dev_appserver cmd . Thats it

abhi0 · March 19, 2022, 10:28am

I did this but the server is not running again at localhost:8888

Reshu_Kumari · February 8, 2023, 11:25pm

Hi all, I am trying to build Appinventor in Ubuntu and have downloaded all thing and I am getting error at step

java_dev_appserver.sh --port=8888 --address=0.0.0.0 appengine/build/war/

The error:

Executing [/usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java, -Dfile.encoding=UTF-8, -classpath, /usr/lib/google-cloud-sdk/platform/google_appengine/google/appengine/tools/java/lib/appengine-tools-api.jar, com.google.appengine.tools.development.DevAppServerMain, --property=kickstart.user.dir=/home/ubuntu/mitapp/appinventor-sources/appinventor, --promote_yaml, --port=8888, --address=0.0.0.0, /home/ubuntu/mitapp/appinventor-sources/appinventor/appengine/build/war]
Feb 09, 2023 4:49:42 AM com.google.apphosting.utils.config.AppEngineWebXmlReader readAppEngineWebXml
SEVERE: Received exception processing /home/ubuntu/mitapp/appinventor-sources/appinventor/appengine/build/war/WEB-INF/appengine-web.xml
com.google.apphosting.utils.config.AppEngineConfigException: Could not locate /home/ubuntu/mitapp/appinventor-sources/appinventor/appengine/build/war/WEB-INF/appengine-web.xml
	at com.google.apphosting.utils.config.AppEngineWebXmlReader.getInputStream(AppEngineWebXmlReader.java:155)
	at com.google.apphosting.utils.config.AppEngineWebXmlReader.readAppEngineWebXml(AppEngineWebXmlReader.java:89)
	at com.google.apphosting.utils.config.EarHelper.readWebModule(EarHelper.java:193)
	at com.google.appengine.tools.development.ApplicationConfigurationManager$WarModuleConfigurationHandle.readConfiguration(ApplicationConfigurationManager.java:431)
	at com.google.appengine.tools.development.ApplicationConfigurationManager.<init>(ApplicationConfigurationManager.java:172)
	at com.google.appengine.tools.development.ApplicationConfigurationManager.newWarConfigurationManager(ApplicationConfigurationManager.java:114)
	at com.google.appengine.tools.development.ApplicationConfigurationManager.newWarConfigurationManager(ApplicationConfigurationManager.java:100)
	at com.google.appengine.tools.development.DevAppServerImpl.<init>(DevAppServerImpl.java:155)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.google.appengine.tools.development.DevAppServerFactory.doCreateDevAppServer(DevAppServerFactory.java:363)
	at com.google.appengine.tools.development.DevAppServerFactory.createDevAppServer(DevAppServerFactory.java:310)
	at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:384)
	at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:58)
	at com.google.appengine.tools.development.DevAppServerMain.run(DevAppServerMain.java:258)
	at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:249)
Caused by: java.io.FileNotFoundException: /home/ubuntu/mitapp/appinventor-sources/appinventor/appengine/build/war/WEB-INF/appengine-web.xml (No such file or directory)
	at java.io.FileInputStream.open0(Native Method)
	at java.io.FileInputStream.open(FileInputStream.java:195)
	at java.io.FileInputStream.<init>(FileInputStream.java:138)
	at java.io.FileInputStream.<init>(FileInputStream.java:93)
	at com.google.apphosting.utils.config.AppEngineWebXmlReader.getInputStream(AppEngineWebXmlReader.java:151)
	... 17 more

com.google.apphosting.utils.config.AppEngineConfigException: Invalid configuration
	at com.google.appengine.tools.development.DevAppServerImpl.reportDeferredConfigurationException(DevAppServerImpl.java:449)
	at com.google.appengine.tools.development.DevAppServerImpl.doStart(DevAppServerImpl.java:246)
	at com.google.appengine.tools.development.DevAppServerImpl.access$000(DevAppServerImpl.java:57)
	at com.google.appengine.tools.development.DevAppServerImpl$1.run(DevAppServerImpl.java:233)
	at com.google.appengine.tools.development.DevAppServerImpl$1.run(DevAppServerImpl.java:231)
	at java.security.AccessController.doPrivileged(Native Method)
	at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:231)
	at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:405)
	at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:58)
	at com.google.appengine.tools.development.DevAppServerMain.run(DevAppServerMain.java:258)
	at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:249)
Caused by: com.google.apphosting.utils.config.AppEngineConfigException: Invalid appengine-web.xml(/home/ubuntu/mitapp/appinventor-sources/appinventor/appengine/build/war/WEB-INF/appengine-web.xml) - Could not locate /home/ubuntu/mitapp/appinventor-sources/appinventor/appengine/build/war/WEB-INF/appengine-web.xml
	at com.google.apphosting.utils.config.EarHelper.readWebModule(EarHelper.java:195)
	at com.google.appengine.tools.development.ApplicationConfigurationManager$WarModuleConfigurationHandle.readConfiguration(ApplicationConfigurationManager.java:431)
	at com.google.appengine.tools.development.ApplicationConfigurationManager.<init>(ApplicationConfigurationManager.java:172)
	at com.google.appengine.tools.development.ApplicationConfigurationManager.newWarConfigurationManager(ApplicationConfigurationManager.java:114)
	at com.google.appengine.tools.development.ApplicationConfigurationManager.newWarConfigurationManager(ApplicationConfigurationManager.java:100)
	at com.google.appengine.tools.development.DevAppServerImpl.<init>(DevAppServerImpl.java:155)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.google.appengine.tools.development.DevAppServerFactory.doCreateDevAppServer(DevAppServerFactory.java:363)
	at com.google.appengine.tools.development.DevAppServerFactory.createDevAppServer(DevAppServerFactory.java:310)
	at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:384)
	... 3 more

If anyone has faced such error or knows why I am getting this error please help.
Thanks!

ewpatton · February 9, 2023, 12:57am

Given that the error is about not finding appengine/build/war/WEB-INF/appengine-web.xml, it sounds like you did not successfully run ant beforehand.

Reshu_Kumari · February 9, 2023, 12:31pm

At command ant MakeAuthKey
output I am getting is

Buildfile: /home/ubuntu/mitapp/appinventor-sources/appinventor/build.xml

MakeAuthKey:

init:

CheckAuthKey:

MakeAuthKey:

BUILD SUCCESSFUL
Total time: 0 seconds

But still I am getting same error

ewpatton · February 9, 2023, 1:57pm

You only ever need to run ant MakeAuthKey once, but to build the whole system you need to run ant.

Reshu_Kumari · February 9, 2023, 7:47pm

With ant the error is

Buildfile: /home/ubuntu/mitapp/appinventor-sources/appinventor/build.xml

all:

init:

MakeWarLibsDir:

common_CommonUtils:

init:

CommonUtils:

common_CommonVersion:

init:

CommonVersion:

components_CommonConstants:

init:

CommonConstants:

WarLibs:

AiSharedLib:

AiServerLib:

components_AndroidRuntime:

common_CommonVersion:

init:

CommonVersion:

init:

HtmlEntities:

Barcode:

CopyComponentLibraries:

common_CommonUtils:

init:

CommonUtils:

CommonConstants:

AnnotationProcessors:

AndroidRuntime.uptodate:

AndroidRuntime:

AiClientLib:

AiRebindLib:

blocklyeditor_BlocklyTranslationGenerator:

CheckBlocklyTranslations:

init:

CheckBlocklyCompile:

BlocklyCompile:
     [java] Exception in thread "main" java.lang.IllegalArgumentException: File not found at: /home/ubuntu/mitapp/appinventor-sources/appinventor/blocklyeditor/../lib/closure-library/closure/goog
     [java] 	at com.google.common.base.Preconditions.checkArgument(Preconditions.java:88)
     [java] 	at org.plovr.Manifest.getInputs(Manifest.java:393)
     [java] 	at org.plovr.Manifest.getFiles(Manifest.java:369)
     [java] 	at org.plovr.Manifest.getFiles(Manifest.java:363)
     [java] 	at org.plovr.Manifest.getAllDependencies(Manifest.java:324)
     [java] 	at org.plovr.Manifest.getInputsInCompilationOrder(Manifest.java:193)
     [java] 	at org.plovr.Manifest.getCompilerArguments(Manifest.java:177)
     [java] 	at org.plovr.CompileRequestHandler.compile(CompileRequestHandler.java:94)
     [java] 	at org.plovr.cli.BuildCommand.runCommandWithOptions(BuildCommand.java:58)
     [java] 	at org.plovr.cli.BuildCommand.runCommandWithOptions(BuildCommand.java:31)
     [java] 	at org.plovr.cli.AbstractCommandRunner.runCommand(AbstractCommandRunner.java:41)
     [java] 	at org.plovr.cli.Command.execute(Command.java:47)
     [java] 	at org.plovr.cli.Main.mainWithExitCode(Main.java:56)
     [java] 	at org.plovr.cli.Main.main(Main.java:30)

BUILD FAILED
/home/ubuntu/mitapp/appinventor-sources/appinventor/build.xml:16: The following error occurred while executing this line:
/home/ubuntu/mitapp/appinventor-sources/appinventor/build-common.xml:301: The following error occurred while executing this line:
/home/ubuntu/mitapp/appinventor-sources/appinventor/blocklyeditor/build.xml:120: Java returned: 1

I check for error in line 120 - appinventor-sources/appinventor/blocklyeditor/build.xml but I don't know why we are getting this error.

ewpatton · February 9, 2023, 9:26pm

That error indicates that you did not run git submodule update --init to load the additional dependencies needed to compile App Inventor.

Reshu_Kumari · February 11, 2023, 12:14am

Thanks @ewpatton now I can successfully run the application locally. I ran the git submodule command in the incorrect directory hence it did not load the needed dependencies.

Arpit_Chaturvedi · February 20, 2024, 6:32am

When I was starting the builder, I was getting this error. How to solve it?

Please Help Me To Solve This Problem

Inadvance Thanks You

Venky · February 24, 2024, 3:12pm

Hello Everyone,

I have followed all the steps, but I don't see any content on the localhost page.

Would be great if someone could help me with this.

Kevinkun · February 24, 2024, 3:42pm

are you sure you got the build successful prompt?

and any error message at this windown?

and any error at browser console panel?

Venky · February 24, 2024, 4:11pm

I don't have any error messages.

These are the two that are running

Venky · February 24, 2024, 4:13pm

I have had errors with the ant noplay command.

Could that be the one that is causing the problem?

I have ignored those errors as it was mentioned as that it was optional

Pradevel · February 24, 2024, 5:15pm

Please post the logs of the ant no play command too.

Venky · February 24, 2024, 5:50pm

Here is the BUILD FAIL message of the ant noplay command

Thanks

Kevinkun · February 24, 2024, 11:13pm

we need more ant result to check why failed.

Pradevel · February 25, 2024, 5:51am

It seems that java can't allocate enough resources for the compilation.
You can try closing other applications before compiling, or try setting JAVA-OPTIONS_ to the required value.
You can search the web, there are multiple tutorials.

Also, what are the specifications of your machine?

Venky · February 25, 2024, 8:31am

Thanks a lot @Kevinkun and @Pradevel for your help.

I had been using the 32-bit version of java but now as I changed to 64-bit, it works.