Failed attempt to build app inventor

Open Source Development
1

Hello,

I receive same error when I try to build the app inventor:

BUILD FAILED
C:\Users\AR_KO\My project\appinventor-sources\appinventor\build.xml:16: The following error occurred while executing this line:
C:\Users\AR_KO\My project\appinventor-sources\appinventor\build-common.xml:301: The following error occurred while executing this line:
C:\Users\AR_KO\My project\appinventor-sources\appinventor\blocklyeditor\build.xml:120: Java returned: 1

Here are the lines I ran:
PS C:\Users\AR_KO\My project> git clone https://github.com/YOUR_USER_NAME/appinventor-sources.git
fatal: destination path 'appinventor-sources' already exists and is not an empty directory.
PS C:\Users\AR_KO\My project> cd appinventor-sources
PS C:\Users\AR_KO\My project\appinventor-sources> git remote add upstream GitHub - mit-cml/appinventor-sources: MIT App Inventor Public Open Source
error: remote upstream already exists.
PS C:\Users\AR_KO\My project\appinventor-sources> git submodule update --init
PS C:\Users\AR_KO\My project\appinventor-sources> cd appinventor
PS C:\Users\AR_KO\My project\appinventor-sources\appinventor> ant MakeAuthKey
Buildfile: C:\Users\AR_KO\My project\appinventor-sources\appinventor\build.xml
MakeAuthKey:
init:
CheckAuthKey:
MakeAuthKey:
BUILD SUCCESSFUL
Total time: 0 seconds
PS C:\Users\AR_KO\My project\appinventor-sources\appinventor> ant

so I have the line "git submodule update --init". what could be another potential problem?
Thank you very much!

2
3

Before the first build you also need to run ant MakeAuthKey. This creates an encryption key used to encrypt the login cookie for App Inventor so that it can't be tampered with.

I see you did that. What's the output of ant? Your content cuts off there...