Difference between revisions of "NexJ Studio Tutorial Problems"

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== Problem 4 ==
 
== Problem 4 ==
 
Null pointer exception when creating a new class (P. 19)
 
Null pointer exception when creating a new class (P. 19)
 +
Null pointers randomly throughout use of IDE
  
 
[[Image:Nexjproblem5.png|1000px]]
 
[[Image:Nexjproblem5.png|1000px]]
  
 
<font color="green">
 
<font color="green">
Solution: Step 4 claims a single "all in one download" for Draw2D, GEF and Zest but in truth Zest is missing. Manually install Zest.
+
Solution: Revert to NexJ Core 7.x.x and do not use 7.1.0 (known issue from previous versions)
 
</font>
 
</font>
  

Revision as of 10:22, 5 May 2011

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

Nexjproblem5.png

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

Nexjcoreblock.png

Solution: File is "blocked" on Windows 7. Right click on file and click "unblock"