I recently tried to move my phabricator server to a new server. After I restored the sql dump and logged in with my username and password, I encountered the following message error:
AphrontSchemaQueryException
#1054: Unknown column 'task.spacePHID' in 'where clause'
Proof:
{F934834}
I thought there were probably changes to the table schema. I previously ran `./bin/storage upgrade` already but I did it again to make sure, then I encountered this problem. This probably indicates that I cannot upgrade twice.
```
> ./bin/storage upgrade --force
Applying patch 'phabricator:20150312.filechunk.1.sql'...
[2015-11-02 05:38:14] EXCEPTION: (AphrontQueryException) #1050: Table 'file_chunk' already exists at [<phutil>/src/aphront/storage/connection/mysql/AphrontBaseMySQLDatabaseConnection.php:311]
arcanist(head=master, ref.master=baf5eb8a8795), phabricator(head=master, ref.master=b7a4d3b9a51c), phutil(head=master, ref.master=59f5a8d2bb82)
#0 AphrontBaseMySQLDatabaseConnection::throwQueryCodeException(integer, string) called at [<phutil>/src/aphront/storage/connection/mysql/AphrontBaseMySQLDatabaseConnection.php:275]
#1 AphrontBaseMySQLDatabaseConnection::throwQueryException(mysqli) called at [<phutil>/src/aphront/storage/connection/mysql/AphrontBaseMySQLDatabaseConnection.php:181]
#2 AphrontBaseMySQLDatabaseConnection::executeRawQuery(string) called at [<phutil>/src/xsprintf/queryfx.php:6]
#3 queryfx(AphrontMySQLiDatabaseConnection, string, string) called at [<phabricator>/src/infrastructure/storage/management/PhabricatorStorageManagementAPI.php:252]
#4 PhabricatorStorageManagementAPI::applyPatchSQL(string) called at [<phabricator>/src/infrastructure/storage/management/PhabricatorStorageManagementAPI.php:220]
#5 PhabricatorStorageManagementAPI::applyPatch(PhabricatorStoragePatch) called at [<phabricator>/src/infrastructure/storage/management/workflow/PhabricatorStorageManagementUpgradeWorkflow.php:192]
#6 PhabricatorStorageManagementUpgradeWorkflow::execute(PhutilArgumentParser) called at [<phutil>/src/parser/argument/PhutilArgumentParser.php:406]
#7 PhutilArgumentParser::parseWorkflowsFull(array) called at [<phutil>/src/parser/argument/PhutilArgumentParser.php:301]
#8 PhutilArgumentParser::parseWorkflows(array) called at [<phabricator>/scripts/sql/manage_storage.php:176]
```
How can I fix this problem?