I followed the instructions here: https://doc.splynx.com/display/SPL/Xero+accounting to install the Splynx-Xero-Addon. I did an apt-get update, then apt-get upgrade first, followed by reboot.
When I apt-get install splynx-xero-addon it downloads and installs and throws a fairly large error message on the console window. The referenced path /var/www/splynx/addons/splynx-xero-addon/config/certs is empty, so I can’t begin to setup the integration to xero.
Here is the error I get during install of the Xero addon:
Yii Migration Tool (based on Yii v2.0.10)
Exception 'yii\db\Exception' with message 'could not find driver'
in /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/db/Connection.php:549
Stack trace:
#0 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/db/Connection.php(863): yii\db\Connection->open()
#1 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/db/Connection.php(850): yii\db\Connection->getMasterPdo()
#2 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/db/Command.php(219): yii\db\Connection->getSlavePdo()
#3 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/db/Command.php(894): yii\db\Command->prepare(true)
#4 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/db/Command.php(362): yii\db\Command->queryInternal('fetchAll', NULL)
#5 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/db/sqlite/Schema.php(143): yii\db\Command->queryAll()
#6 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/db/sqlite/Schema.php(126): yii\db\sqlite\Schema->findColumns(Object(yii\db\TableSchema))
#7 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/db/Schema.php(147): yii\db\sqlite\Schema->loadTableSchema('migration')
#8 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/console/controllers/MigrateController.php(199): yii\db\Schema->getTableSchema('{{%migration}}', true)
#9 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/console/controllers/BaseMigrateController.php(771): yii\console\controllers\MigrateController->getMigrationHistory(NULL)
#10 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/console/controllers/BaseMigrateController.php(135): yii\console\controllers\BaseMigrateController->getNewMigrations()
#11 [internal function]: yii\console\controllers\BaseMigrateController->actionUp(0)
#12 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/base/InlineAction.php(55): call_user_func_array(Array, Array)
#13 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/base/Controller.php(154): yii\base\InlineAction->runWithParams(Array)
#14 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/console/Controller.php(128): yii\base\Controller->runAction('up', Array)
#15 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/base/Module.php(454): yii\console\Controller->runAction('up', Array)
#16 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/console/Application.php(180): yii\base\Module->runAction('migrate/up', Array)
#17 /var/www/splynx/addons/splynx-xero-addon/commands/InstallController.php(30): yii\console\Application->runAction('migrate/up', Array)
#18 [internal function]: app\commands\InstallController->actionIndex()
#19 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/base/InlineAction.php(55): call_user_func_array(Array, Array)
#20 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/base/Controller.php(154): yii\base\InlineAction->runWithParams(Array)
#21 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/console/Controller.php(128): yii\base\Controller->runAction('', Array)
#22 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/base/Module.php(454): yii\console\Controller->runAction('', Array)
#23 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/console/Application.php(180): yii\base\Module->runAction('install', Array)
#24 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/console/Application.php(147): yii\console\Application->runAction('install', Array)
#25 /var/www/splynx/addons/splynx-addon-base/vendor/yiisoft/yii2/base/Application.php(375): yii\console\Application->handleRequest(Object(yii\console\Request))
#26 /var/www/splynx/addons/splynx-xero-addon/yii(24): yii\base\Application->run()
#27 {main}