Getting no public fields/method error

[alkhemist00]

Hello Abel,

Platform: macOS v10.4.1 Matlab: r2018a TWS: Build 974g, Dec 18, 2018

I followed the getting started steps and was able to run the AccountSummaryExample. Here is the output:

added interface method: TWSNotification notification listener has been added -1 2104 Market data farm connection is OK:usfarm.nj -1 2104 Market data farm connection is OK:usfuture -1 2104 Market data farm connection is OK:cashfarm -1 2104 Market data farm connection is OK:usfarm -1 2106 HMDS data farm connection is OK:euhmds -1 2106 HMDS data farm connection is OK:fundfarm -1 2106 HMDS data farm connection is OK:njhmds -1 2106 HMDS data farm connection is OK:ushmds

When I attempt to run any other examples I get no public methods / fields errors: For example running MarketDataExample, I receive the following errors:

No public field m_exchange exists for class com.ib.client.Contract.

Error in MarketDataExample (line 82) contract.m_exchange = 'ARCA'; contract.m_primaryExch = 'ARCA';

I also tried doing some basic things like:

order = com.ib.client.Order()

order =

com.ib.client.Order@0

fields(order)

ans =

13×1 cell array

{'CUSTOMER'           }
{'FIRM'               }
{'OPT_UNKNOWN'        }
{'OPT_BROKER_DEALER'  }
{'OPT_CUSTOMER'       }
{'OPT_FIRM'           }
{'OPT_ISEMM'          }
{'OPT_FARMM'          }
{'OPT_SPECIALIST'     }
{'AUCTION_MATCH'      }
{'AUCTION_IMPROVEMENT'}
{'AUCTION_TRANSPARENT'}
{'EMPTY_STR'          }

order.m_action='BUY' No public field m_action exists for class com.ib.client.Order.

Similarly:

contract = com.ib.client.Contract()

contract =

conid 0 strike 0.0

contract.m_symbol = 'IBKR'; No public field m_symbol exists for class com.ib.client.Contract.

I am not very familiar with java and think that I am missing something very basic here.

Hope you can point me in the right direction.

Thanks in advance!

[softwarespartan]

Thanks for reaching out!

Yes, some of the examples still need updated for +9.72 API changes.

No issues to use latest docs from IB here:

http://interactivebrokers.github.io/tws-api/

Sent from my iPhone

On Jan 3, 2019, at 7:47 PM, alkhemist00 notifications@github.com wrote:

Hello Abel,

Platform: macOS v10.4.1 Matlab: r2018a TWS: Build 974g, Dec 18, 2018

I followed the getting started steps and was able to run the AccountSummaryExample. Here is the output:

added interface method: TWSNotification notification listener has been added -1 2104 Market data farm connection is OK:usfarm.nj -1 2104 Market data farm connection is OK:usfuture -1 2104 Market data farm connection is OK:cashfarm -1 2104 Market data farm connection is OK:usfarm -1 2106 HMDS data farm connection is OK:euhmds -1 2106 HMDS data farm connection is OK:fundfarm -1 2106 HMDS data farm connection is OK:njhmds -1 2106 HMDS data farm connection is OK:ushmds

When I attempt to run any other examples I get no public methods / fields errors: For example running MarketDataExample, I receive the following errors:

No public field m_exchange exists for class com.ib.client.Contract.

Error in MarketDataExample (line 82) contract.m_exchange = 'ARCA'; contract.m_primaryExch = 'ARCA';

I also tried doing some basic things like:

order = com.ib.client.Order()

order =

com.ib.client.Order@0

fields(order)

ans =

13×1 cell array

{'CUSTOMER' } {'FIRM' } {'OPT_UNKNOWN' } {'OPT_BROKER_DEALER' } {'OPT_CUSTOMER' } {'OPT_FIRM' } {'OPT_ISEMM' } {'OPT_FARMM' } {'OPT_SPECIALIST' } {'AUCTION_MATCH' } {'AUCTION_IMPROVEMENT'} {'AUCTION_TRANSPARENT'} {'EMPTY_STR' } order.m_action='BUY' No public field m_action exists for class com.ib.client.Order.

Similarly:

contract = com.ib.client.Contract()

contract =

conid 0 strike 0.0

contract.m_symbol = 'IBKR'; No public field m_symbol exists for class com.ib.client.Contract.

I am not very familiar with java and think that I am missing something very basic here.

Hope you can point me in the right direction.

Thanks in advance!

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[ecpgieicg]

Hi, I confess first that I haven't read through your question. But have you tried using the methodsview function in Matlab to find the java function you need?