Hello there!
When access maniphest task page, a specific task always got a error message like this.
```
Unhandled Exception ("PhutilJSONParserException")
Parse error on line 1 at column 0: Expected one of: 'STRING', 'NUMBER', 'NULL', 'TRUE', 'FALSE', '{', '['
```
And apache2 log is
```
[2015-07-17 09:54:44] EXCEPTION: (PhutilJSONParserException) Parse error on line 1 at column 0: Expected one of: 'STRING', 'NUMBER', 'NULL', 'TRUE', 'FALSE', '{', '[' at [<phutil>/src/parser/PhutilJSONParser.php:32]
arcanist(head=master, ref.master=3793998df43b), phabricator(head=master, ref.master=0306eb70edfc), phutil(head=master, ref.master=aa6cd8f7e5e5)
#0 <#2> PhutilJSONParser::parse(NULL) called at [<phutil>/src/utils/utils.php:1047]
#1 <#2> phutil_json_decode(NULL) called at [<phabricator>/src/infrastructure/customfield/standard/PhabricatorStandardCustomFieldPHIDs.php:121]
#2 <#2> PhabricatorStandardCustomFieldPHIDs::getApplicationTransactionTitle(ManiphestTransaction) called at [<phabricator>/src/infrastructure/customfield/field/PhabricatorCustomField.php:993]
#3 <#2> PhabricatorCustomField::getApplicationTransactionTitle(ManiphestTransaction) called at [<phabricator>/src/applications/transactions/storage/PhabricatorApplicationTransaction.php:726]
#4 <#2> PhabricatorApplicationTransaction::getTitle() called at [<phabricator>/src/applications/maniphest/storage/ManiphestTransaction.php:597]
#5 <#2> ManiphestTransaction::getTitle() called at [<phabricator>/src/applications/transactions/view/PhabricatorApplicationTransactionView.php:412]
#6 <#2> PhabricatorApplicationTransactionView::renderEvent(ManiphestTransaction, array) called at [<phabricator>/src/applications/transactions/view/PhabricatorApplicationTransactionView.php:173]
#7 <#2> PhabricatorApplicationTransactionView::buildEvents(boolean) called at [<phabricator>/src/applications/transactions/view/PhabricatorApplicationTransactionView.php:218]
#8 <#2> PhabricatorApplicationTransactionView::buildPHUITimelineView() called at [<phabricator>/src/applications/transactions/view/PhabricatorApplicationTransactionView.php:200]
#9 <#2> phutil_escape_html(array) called at [<phutil>/src/markup/render.php:157]
#10 <#2> phutil_escape_html(array) called at [<phutil>/src/markup/render.php:119]
#11 <#2> phutil_tag(string, array, array) called at [<phabricator>/src/view/layout/AphrontSideNavFilterView.php:312]
#12 <#2> AphrontSideNavFilterView::renderFlexNav() called at [<phabricator>/src/view/layout/AphrontSideNavFilterView.php:206]
#13 <#2> AphrontSideNavFilterView::render() called at [<phabricator>/src/view/AphrontView.php:176]
#14 <#2> AphrontView::producePhutilSafeHTML() called at [<phutil>/src/markup/render.php:133]
#15 <#2> phutil_escape_html(AphrontSideNavFilterView) called at [<phutil>/src/markup/render.php:189]
#16 <#2> phutil_implode_html(string, array) called at [<phabricator>/src/view/page/PhabricatorBarePageView.php:58]
#17 <#2> PhabricatorBarePageView::willRenderPage() called at [<phabricator>/src/view/page/PhabricatorStandardPageView.php:157]
#18 <#2> PhabricatorStandardPageView::willRenderPage() called at [<phabricator>/src/view/page/AphrontPageView.php:46]
#19 <#2> AphrontPageView::render() called at [<phabricator>/src/applications/base/controller/PhabricatorController.php:308]
#20 <#2> PhabricatorController::buildPageResponse(PhabricatorStandardPageView) called at [<phabricator>/src/applications/base/controller/PhabricatorController.php:370]
#21 <#2> PhabricatorController::buildApplicationPage(array, array) called at [<phabricator>/src/applications/maniphest/controller/ManiphestTaskDetailController.php:369]
#22 <#2> ManiphestTaskDetailController::processRequest() called at [<phabricator>/src/aphront/AphrontController.php:33]
#23 <#2> AphrontController::handleRequest(AphrontRequest) called at [<phabricator>/src/aphront/configuration/AphrontApplicationConfiguration.php:226]
#24 phlog(PhutilJSONParserException) called at [<phabricator>/src/aphront/configuration/AphrontDefaultApplicationConfiguration.php:230]
#25 AphrontDefaultApplicationConfiguration::handleException(PhutilJSONParserException) called at [<phabricator>/src/aphront/configuration/AphrontApplicationConfiguration.php:230]
#26 AphrontApplicationConfiguration::processRequest(AphrontRequest, PhutilDeferredLog, AphrontPHPHTTPSink, MultimeterControl) called at [<phabricator>/src/aphront/configuration/AphrontApplicationConfiguration.php:140]
#27 AphrontApplicationConfiguration::runHTTPRequest(AphrontPHPHTTPSink) called at [<phabricator>/webroot/index.php:21]
```
Because there is a function related custom field in error call-stack, it's good to show my team's custom fields setting, which is
```
"saladbowl:estimated-hours": {
"name": "Estimated Hours",
"type": "int",
"caption": "Estimated number of hours this will take.",
"required": true
},
"saladbowl:auditors": {
"name": "Auditors",
"type": "users",
"caption": "Auditors who will review this task and commits.",
"required": false
}
}
```
Thanks!