NexJ Studio Tutorial Problems
Contents
Problem 1
User root is not recognized,or message likes "Can't find any matching row in the user table"
Solution: Use other account that has sufficient privileges to the new created databases.
Problem 2
Cannot deploy on server, get Error Message: Unknown component "HTTPServer.WSRP" in repository "Training 101".
Solution: Use new version core model and new Eclipse plugin.
Problem 3
It only upgrade the database correctly, but it doesn't upgrade the dump file.
When run recreate, I get error message Error: Version mismatch: dump version http:// www.nexj.com/ns/gwtsample-login#1.15, metadata version http:// www.nexj.com/ns/gwtsample-login#1.16
Solution: Publish a model before create any class, and Upgrade UnitTest dump before upgrade the database.
Summer 2011
Problem 4
Null pointer exception when creating a new class (P. 19) Null pointers randomly throughout use of IDE
Solution: Revert to NexJ Core 7.x.x and do not use 7.1.0 (known issue from previous versions)
Problem 5
Non-matching core files
Solution: Latest versions of NexJ Studio Plugin have Optional JBoss libraries built in. Do not replace with other versions.
Problem 6
Error with Model Browser in Eclipse
Solution: File is "blocked" on Windows 7. Right click on file and click "unblock"
Problem 7
Problem upgrading database
Solution: nexj user not created yet. Create nexj user in mysql database with the appropriate commands. Grant privileges to the nexj user
CREATE USER 'nexj@localhost' IDENTIFIED BY 'nexj';
GRANT CREATE, INSERT, DELETE, UPDATE, SELECT on train101.* to nexj@localhost;
GRANT CREATE, INSERT, DELETE, UPDATE, SELECT on unittest.* to nexj@localhost;
Check with SHOW DATABASES and SHOW TABLES that appropriate tables and databases have been created
